Long crank or extended crank Chevy pickup hard start

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In this video, I will show you how to easily diagnosis a long crank, extended crank or a hard start on a Chevy pickup truck. 5.7l or 6.0l engines
Just a recap of what you should do first to determine if your long crank before starting is fuel related or not.
First, before you try cranking the engine over, turn the ignition key to the run position then back off without cranking the starter. What this will do is run the fuel pump and in most cases, you will be able to hear the fuel pump running. Do this 3 to 4 times before you try starting it.
If after you have circled the key a few time the engine starts normally then you now know for sure you have a fuel pressure leak down problem causing your hard start.
If this video was helpful please help support my youtube channel by subscribing here: / @flatratemechanic
For more diagnostic information on this hard starting problem you can finish reading here: flatratemechanic.com/index.php...
Reggie Curtis AKA The Flat Rate Mechanic. 25 year ASE Master Automotive Technician. Advanced level ASE certified.
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Disclaimer:
Due to factors beyond the control of The Flat Rate Mechanic, it cannot guarantee against unauthorized modifications of this information or improper use of this information. The Flat Rate Mechanic assumes no liability for property damage or injury incurred as a result of any of the information contained in this automotive repair video. The Flat Rate Mechanic recommends safe practices when working on cars or trucks with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this repair video. Due to factors beyond the control of The Flat Rate Mechanic, no information contained in this automotive repair video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained.

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1 июл 2024

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Комментарии : 197

@FlatRateMechanic 5 лет назад

Fuel pump amzn.to/2Du44FV did fix this one.

@tonygixxer 5 лет назад

i wasnt going to message but i saw you reply to some others. any clues for me? i have a 99.5 silverado 1500 5.3. im having the exact same issue except when it happens that i need to do an extended crank, i then smell fuel in the cab. any clues from that? i recently put in an airtex fuel pump. thought it was that and got an ac delco. still does it.

@youdontwantthesecrumbs3996 4 года назад

Why not use a OEM pump, those cheap pieces of shit will just crap out in 6-12 months. But I guess that's how shops get returning customers.

@grahamtaylor7996 Год назад

Thanks for info , I will try what you said and let you know later .

@kennykluge9912 2 года назад

Like everyone else appreciate the video definitely a big help on where to narrow the issue down to!

@austinplayerforaday2163 3 года назад

Great video! Very thorough and helpful. Thank you

@donwold1622 4 года назад

Awesome. Thank you for the info. Confirms what I was guessing and now I can go check for issues.

@leopoldohernandez5345 5 лет назад

Thanks alot! My 03 tahoe was doing just exactly the same, long crank.... Never have done a fuel pump until i saw this, so gave it a try and did it...took me 2 days but did it.. Works perfectly fine now...left it about 30 minutes and went over and turned the key and started right away...problem fixed.... Thanks again...

@FlatRateMechanic 5 лет назад

Glad it was helpful thanks

@nghermit4922 3 года назад

Thanks dude, figured it was fuel pressure. Guess I’ll test, or just cycle key until that stops working. Lol

@josephcieri3868 2 года назад

Thank for the advice, it's like my truck is there

@timjohnson6975 3 года назад

Well I'll be damned. Ya helped me out once again. Thanks bro. I was starting to get nervous after just putting 10k into a brand new motor for my Silverado Hybrid

@brandonconquet6747 3 месяца назад

Just bought a 2011 Chevy silverado 100k miles, scared me with the extended crank, but it was the simple fix with the hose. Life saver. thank you so much!

@luistorres2605 2 месяца назад

Does it crank if u turn it off right away?

@mikep5983 3 дня назад

@@luistorres2605mines does. So I have the same issue when cold cranking it … I get the extended crank but after that it cranks right up.

@carlcouey4112 5 лет назад

Excellent guidance and procedure. Many Thanks

@Mitcz26 24 дня назад

Don’t press your brake when pushing push start

@alanbarrowman2842 11 месяцев назад

Perfect answer! It helped a lot! Thank you

@justinallen3037 Год назад

Pretty sure this is my problem. Thanks for the info!

@mva1985 Год назад

damn... you gotta love youtube and DIYers

@juanrocha3791 3 года назад

Awesome bro I appreciate your knowledge may God keep you.

@pantherplatform 3 года назад

I have a 96 GMC Savana 5.7/350 in the shop with that issue. Replaced the fuel pump, crank sensor, oil pressure sensor, smoke tested for leaks and found a couple rotten vacuum lines. Ran great after fixing the vacuum leak but it will run like crap then run great and back and forth. It's fun working on vans because I can see the engine as I'm driving down the highway with the doghouse off. Thanks for the great video.

@alejandropina9836 4 месяца назад

Did you ever figure out the issue?

@pantherplatform 4 месяца назад

@@alejandropina9836 I'm going to have to look in my file to see what I did to fix it and get back to you. Only been three years lol

@thumpercoronado2840 4 года назад

Thanks for this info. 👍👍

@ImpalamansGarage 2 года назад

Excellent explanation!

@Mrdank1987 6 месяцев назад

Exactly what I needed to know Thanks 👍

@codyhenley12 9 месяцев назад

Thanks brother for making this video, it was very helpful for me.

@buddykane22 2 года назад

Very helpful. Thanks

@lapuravida1329 5 лет назад

My friend you are a life saver!!!!!

@crackstr2 4 года назад

Hey there! Thanks for the video, well put together and helpful. Just wanted to give you another possible solution that worked on my 2010 5.3L. I drive on gravel roads a lot, and as it turns out, the fuel evaporate mechanism can clog with “dust”. A simple blow out with an air gun resolved my ability to fill with fuel, and immediately stopped extended crank at start! Cheap fix, cost literally nothing but an hour of time! Read a few comments to see if anyone mentioned this, hope it’s not been talked to death all ready. Thanks for the video!!!

@kingzionmusic 2 года назад

Did the check engine light 💡 come on and or misfire?

@taronhowell2523 Год назад

Fill what with fuel ? And where is that located

@Tightwad64 2 года назад

Tks for the info great video

@highlife6951 4 года назад

My 08 Suburban has done it twice. It has 87K mi. It had an extended start after sitting a couple weeks. Another time it started first try, turn it off, wait a couple minutes, then it has an extended start. It has sat weeks at a time and no problem. This started like 2 weeks ago. I was thinking fuel pump is "going out". But it seems like the hardest and most expensive thing to try first. Suggestions? I am gonna check that vacuum line since i recently replaced the oil pressure sensor and i might've knocked something out of place.

@BrianAuer 28 дней назад

Fantastic video video. Thank you very much.

@FlatRateMechanic 24 дня назад

Thanks a ton for the support! So happy you liked it!

@3ll3nwood Год назад

Thanks for the help.

@jackneeley8424 Год назад

Thank you very much I kind of figured that

@2strokecivic 4 года назад

I replaced my fuel pump and that fixed this issue for me! The whole pump was rusted out was losing pressure there! Definitely check this!!

@dylanhucik8594 3 года назад

I just did and no luck... It needed to be done but still same problem

@PapaHouie 2 года назад

@@dylanhucik8594 did you get it fixed? what else did you replace because i have the same issue already replaced fuel pump and filter

@dylanhucik8594 2 года назад

@@PapaHouie take it too a shop and have them reset the computer... Mine was stuck in flex fuel mode so it thought i was running ethanol and not gas, basically flooding it in a sense. Like 50 bucks and only took 20mins...

@OGRH 4 месяца назад

Short, to the point, no bullshit! Great video man I'm gonna subscribe. I'll let you know if this applies to me! 💪

@jeffs5122 3 года назад

Great video. Exactly what I have. Thanks

@rodneysmith247 3 года назад

My 2005 honda is slow to start but if I turn over the motor for a split second without starting it and then hit the key again and it fires up instantly. Is that a good test for the problem in your video? Great video 👍

@jerrellstrawn6409 5 лет назад

Thanks.

@jessieray1000 5 лет назад

I have same problem this one of fuel pump for 99 Chevrolet Silverado 1500 4.8 4wd.it was hard to start and engine stall few times I just bought this truck few days ago.

@fordmustang98guy 5 лет назад

I have a 2002 Buick Regal LS & I am having this problem with it starting when the engine is cold

@dbrockway601 2 года назад

My truck has 97 k on it. Gmc 2500 hd having this exact issue. I replaced egr all eight injectors the regulator line and boots. Is it possible I have a bad filter or should I just replace the pump

@michaeldennis7952 2 года назад

May I ask i have a 1996 chevy suburban 5.7 k 1500. Starts and runs like new unless its summer time. Turn it off to run in the store and come out and it won't start until the next morning,fires right up then! The fuel pressure is perfect and it has a new distributor,plugs,wires,coolent temp sensor none of wich fixed this issue. NO check engine lights on! In the winter months this problem goes away. Thanks for the advice!?👍👍

@n8D97 Год назад

I have a 97 Silverado with a slow start but in the mornings it busy right off and starts perfect. Any ideas here?

@kingzionmusic 2 года назад

My fuel pressure regulator is in the spider injection so when I change the FPR I might as well put in a new spider 🕷 injection system. Thank Goodness it could be worse the 98 350 Vortec engine is fairly easy to work on.

@bossman6627 4 года назад

I had a bad fuel pump+weak starter. So watch out for that starter also. I knew when it started to click as it turned over the engine while starting.

@spiercevaughn 4 года назад

Has the same problem, I replaced my starter and still need to replace the pump probably. It turns over real nice now tho!

@ecgodsmack86 4 года назад

Bought a vehicle like this have never changed spark plugs or wires can this also cause a long crank/hesitation?. It always eventually fires up I also have a new starter and battery.

@terryguffey8049 5 лет назад

i put a new fuel pump in 2 years ago . think it could be bad ?

@timothyhood7252 3 года назад

i got a 5.7 vor and i have this problem but i’ve been letting it prime for a month or so and it’s been fine but just got the problem again even when i do. NOT ONLY that i get a lot of black smoke/concentrate that comes out my exhausts. it’s so bad that it covers the ground black any ideas?

@jaycemonroe3942 7 месяцев назад

Thank you

@markdaniele4539 4 года назад

My 1979 C-10 is doing this now.

@chrisnielsen3562 Год назад

Got a 98 vortec, fuel pressure dips to near O psi overnight and I checked it in a couple hours and was down 20 psi. Blipping the throttle fuel pressure goes up to 60 psi idles at 50 psi, changed the fuel filter no change.I thought blipping thereottle and fuel pressure rises is a good sign for regulator.haven’t pulled any plugs yet. 🤷🏽‍♂️

@christopherpinto884 Год назад

So if i put a fuel gauge when i prime the car , the psi have to stay ? And no drop at all ??

@noe-uc4fc 5 лет назад

chev tahoe 99 long crank then it starts.then it starts shaking and white smoke comes out the muffler.any ideas what might be the problem?

@KFLson 2 года назад

So the pressure has to be the same overnight?

@inspiredbyinspire9234 5 лет назад

Appreciate the video. I’m having the same problem with my 2011 Sierra 5.3. After it finally fires up I’ve got a diff of smoke out of the exhaust. Can’t tell yet if it’s fuel or oil smoke

@anthonyskorner4511 4 года назад

@Saleh Albluwe white can be more than 1 thing. Blue =oil.

@dontknowdontcare2562 3 года назад

Ever figure out what was causing it? My 350 has the same problem

@rickdemchuk5111 5 лет назад

the 07 does not have a vacuum operated pressure regulator., pressure is 35 when you turn the key, goes to 55 after started then run fine, starts terrible

@famousmason1189 5 лет назад

I have this problem with my 99 Chevy silverado but it was doing this only one except for a long time but recently is start being really really hard to start even if I drove it in a couple hours later go to start it and it would be hard to start and eventually turn over once it starts and runs perfect but when I turn the key on and off and try to recycle to bring the pump up you can hear the pump clicking on and off so could it still be a fuel pump issue if I hear the pump turning on and off or would it be something else I put a machine on it at Advance Auto and they said it's a code for the EGR valve but everything I've read about the EGR valve. Says it will cut of rough idea an mine runs smooth just sometimes when it sits takes forever to start an recently if it sits 4 HR hard to start

@FlatRateMechanic 5 лет назад

Sounds like fuel pump or pressure reg. fuel pressure gauge will need to be installed to check. and yes i would agree that the egr is not related to your starting problem.

@johnjames6396 3 года назад

What there not telling u is the fuel pump has a 1 way valve that holds the pressure it builds, and that is your problem.

@peteburns824 2 года назад

My fuel pump was fine. It was my crankshaft position sensor. Easy fix, took me 15 minutes.

@jimmym9929 Год назад

I have an 02 silverado with the exact same issues in this video, did you also? It’s not my fuel pump, fuel filter, or fuel regulator. I wanted to try next my crankshaft sensor hoping this fixes it and it’s not the injectors.

@alyssahtomasi7807 2 года назад

took my 2003 tahoe to shop for long crank issue. came back it was fuel pump, according to the mechanics machine. on our reader we were getting an evap leak code, he did not get this code. this is the 3rd fuel pump we have put in in about 8 months or so. Got the truck back, next morning i took my child to school started up fine. come home for about an hour and take my second child to school, have the same long crank issue.... help!

@TheHeadlessHorseman 2 года назад

Is it common for TBI injectors to leak? I have a 94 suburban with TBI. It looses pressure once the vehicle is off. I have read somewhere this is normal for TBI but can't find anything else to back that up. My suburban has to crank for extended period of time after sitting for awhile. Cycling the key on and off a few times to build up pressure does not seem to make a difference. I am getting a strong gas smell from the engine bay area but cannot find any active leaks. I was maybe thinking the injectors are leaking when the vehicle is off causing it to flood itself out. It seems if I start the vehicle with the pedal to the floor, it might help it start a little quicker.

@birddogduke1251 2 года назад

The injectors don't leak too often but the tbi itself, i.e., the injector pod and fuel pressure regulator and fittings are notorious for leaking. Fuel pressure should be about 10-13 psi.

@guerillarepublik1680 Год назад

Great video 👍🏽

@Sam-2311 7 месяцев назад

But the newer Silverados don’t have a key, just a start button so how do you cycle it…..

@cj7girl280 3 года назад

Hi, I have a long crank problem. But if I spray starting fluid in the TB it starts right up... But once I shut the key off on my 88 s10 blazer 4.3 with TBI in my cj7, the fuel pressure drops to zero right away. Any idea what is more likely causing the issues? Thanks for the video

@FreshKicks4545 3 года назад

Did you find the issue?

@jeffkleminsky5877 3 года назад

My truck has an extended crank after adding fuel every time. Now it runs at a high idle/rpms

@jimmym9929 Год назад

My 02 Silverado has the same exact problem except it was super intermittent wouldn’t do this for days or weeks now it has become once every day to now every chance it sits for longer then an hour. I’m 100% sure It’s not my fuel pump or fuel regulator but idk how to thoroughly check fuel injectors all I have done was check for pulsating and each one pulses as the engine is on but idk how to pin point my issue. Truck starts easier when I feather the gas peddle

@rawfoodphilosophy7061 10 месяцев назад

pull injectors, leave on the rail, the prime the engine a few times to full pressure. There should be no drops. Did you find your issue?

@dco956 3 года назад

Sometimes theres moisture in distributer.....u can put hair dryer on it for 5 min

@davidlee582 2 года назад

Have a 07, gmc 6.2 L having a long startup only if the truck was sitting over night or some hours

@davidlee582 2 года назад

You gave me some places to look thanks

@jeffreysmall8902 3 года назад

Have similar problem . I even had too replace two fuel injector started right up . If it's cold has long start

@captnobvious31 3 года назад

How can you tell which injector is faulty?

@jeffreysmall8902 3 года назад

@@captnobvious31 bank one and three I finally replace all the fuel injector and spark plugs and spark plugs wires . Have the same problem

@jeffreysmall8902 3 года назад

@@captnobvious31 miss fire bad fuel economy fuel injector leaking

@stonewallbryant4651 3 года назад

Hey!! Maybe you or someone else can help me. Similar but opposite. 2004 tahoe 5.3 will start up first whirl when it’s been sitting for a while. But if I run around town with warm motor and shut it off, when I come back out to crank it would take about 15 seconds to finally fire up. So since I know it’s like that, I prime it by turning key about 4 times and then it’ll start right up.

@coreydraper2980 2 года назад

Ever find the problem

@stonewallbryant4651 2 года назад

@@coreydraper2980 I think it’s fuel pump but I know how to make it work lol

@joshc474 2 года назад

99 s10 2.2L is the opposite. Starts fine in the morning when cold but extended crank after it as set in the sun all day . Any thoughts?

@n8D97 Год назад

I’ve got this same issue on my 1997 with the 5.7 did you ever figure this out?

@CharlieHorton-cl3fn Год назад

Spider injectors not firing to start spray carbclener in breather and crank up and runs good until sit again, something all over again.

@leonelcolon5217 4 года назад

That could be use to diagnostic the 6.6L duramax diesel too?

@rickdemchuk5111 5 лет назад

i have a 2007 2500hd 6.0 35psi static fuel pressure and 55psi running , hard starting, what do you think

@rune3ater286 3 года назад

I have a 2000 chevy silverado 6.0 I changed the fuel pump and fuel filter pluse the regulator and fuel line it still does it what now?

@R3nat002 3 года назад

Starter maybe

@sumhavefun 5 лет назад

2006 chevy silverado Hd, cranks slow at startup, but starts, battery and alternator register good battery terminals are clean. Any ideas?

@FlatRateMechanic 5 лет назад

The starter is probably drawing too many amps.

@TheFarmerfitz 4 года назад

@@FlatRateMechanic that would be my guess as well...

@robgodin9180 4 года назад

My 08 Escalade starts perfect invthe morning buy once its warmed up and you shut it off ot cranks really long before it starts once it starts it's fine but it cranks way to long any ideas

@Leoj1106 4 года назад

I’m having the same problem here on a 2009 Escalade, I change the fuel injectors and still not the problem I let you know if a fix it , I got to change the fuel pump in a week or 2, let me know it you find the problem, good luck

@followerofchrist1961 2 года назад

@@Leoj1106 how did it go?

@daltonbedore8396 3 года назад

so what does it mean if it starts quickly whrn cold, but takes a long time to start when warmed up? also when its warmed up it hesitates to accellerate

@scottstringer3060 3 года назад

2008 suburban mine hesitates when warm too. like today running for an hr stopped for 10 -15 and hesitated when I cranked it. later it did it again after stopping for gas. I can never replicated it when I try. new battery and starter already. Thx.

@daltonbedore8396 3 года назад

@@scottstringer3060 mine was the fuel pump after all. even though its a larger job its the most likely so in retrospect i should have done it first

@aaronwatts9607 Год назад

2009 suburban and it does this every so often. Sometimes it starts right up sometimes long crank for few secs. Doesn't matter time of day or length of it sitting. Ideas?

@cobi0125 6 месяцев назад

my 07 doing the same, did u figure out ur problem?

@SamsPawsomeRescue 6 месяцев назад

@@cobi0125 no, haven't had the money to take it to a shop yet

@yanezpb7109 6 месяцев назад

@@SamsPawsomeRescuefollowing

@2ss701 3 года назад

Hey mine I just replaced the pump like a couple months ago and it now has that little long cranking and I checked the fuel pressure and it was at about 48 and I took off the vacuum hose off the regulator and it went up to 60 so could it be the regulator because the fuel pump seems good or an injector???

@sirjohnahayfalcon 2 года назад

What did you find the problem to be?

@2ss701 2 года назад

@@sirjohnahayfalcon probably the fuel pump because I used to much Lucas fuel cleaner and I guess that’s bad I got a replacement for free but I haven’t installed it! So probably it’s the fuel pump actuator

@Curtiscustomairbrushingdotcom 6 лет назад

I've replace a lot of fuel pressure regulators on these chevy engines

@el5495 5 лет назад

Is it hard to do?

@blkinvestor 3 года назад

extended crank only happens to my GF tahoe when it's cold though. In the summer not so much.

@ldgarnett777 2 года назад

When I lived in the mountains I had the same issue during winter. Might look into synthetic oil. I did that and it made it start much easier

@rawfoodphilosophy7061 10 месяцев назад

some slow leaks are caused by fuel injectors

@beardedginger9175 10 месяцев назад

What happens if you crank the key over a few times to build up pressure and it is still hard to start... Just put in a new battery and still it isnt helping, it eventually starts but takes awhile. 2001 chevy express 5.7L. It also seems if instead of me just sitting there letting it crank it starts a bit easier if i tap the key over and over for short bursts

@Cavs1975 4 месяца назад

What was the problem ?

@beardedginger9175 4 месяца назад

@@Cavs1975 Changed my fuel pump, the old one was losing pressure where the hoses connected just old and wore out i guess after changing that was perfect

@montanasledder2301 3 года назад

What could cause extended cranking after I replaced the fuel pump I replace my fuel pump and it still has excessive cranking

@20tea 3 года назад

How about an issue with the ignition switch?

@peteburns824 2 года назад

crankshaft position sensor.

@luistorres2605 2 месяца назад

Hey it takes long for me but when I start it and turn it off it will start right away unless I wait 2 minutes then it will do it again any idea?

@FlatRateMechanic 2 месяца назад

Yup, sound just like a fuel pump

@rodneysmith247 3 года назад

It vibrates excessively with bad gas mileage and 0301 check engine light code too

@ERIIC_187 2 года назад

I have a 2006 Silverado crew cab 5.3 and it cranks 1 time then starts at the 2nd crank runs and works good just dont know why it does that and then sometimes it starts first crank it has new ngk spark plugs and wires they told me it might be the fuel filter. Any one have the same issue?

@eberpadilla3439 2 года назад

I have the same issue on my 01 Sierra. I haven’t really trouble shooter anything, but I was told it could be the fuel filter as well. Lmk if you get this fixed and what you’re issue was!

@davidpreston2502 3 года назад

My wife has a 02 chevy tahoe with a 5.3. We live in death valley and when the temp outside is over 100 it has a hard time starting it takes about 10-15 seconds of cranking before it starts. Temperature gets under 100 and it starts at a flick of the key. Fuel pump is a year old. Any ideas of what it could be? Thanks

@ricogallardo6448 2 года назад

Did you figure this out? I am having the same issue on a 02 Silverado in the heat.

@abelscaliber7969 2 года назад

@@ricogallardo6448 that’s weird, it’s usually the other way around

@901cam4 Год назад

Same problem Was there any solution

@davidpreston2502 Год назад

@@901cam4 fuel pressure regulator

@regigilman2255 Год назад

Will a leaky injector cause a pressure drop

@FlatRateMechanic Год назад

Yes it will

@mattewgolden238 2 года назад

i have a buddy that has a 5.3 and he has changed all fuel related stuff and all plugs wires and coils. he can crank it and it wont start but the 2nd time he cranks it it starts. and im talking right after sitting also it doesnt always do this sometimes it just starts brand new motor too roughly 3k miles any idea?

@SLASH-kx1vu 5 месяцев назад

日本からです。同じ症状で困っております。原因は分かりましたか？ From Japan.

@travisklassen8820 7 месяцев назад

My 2010 doesn’t have a fuel pressure regulator

@brandonburr1514 3 года назад

I'm having the same issue but only when the trucks warm. In the mornings it fires right up before the key is turned all the way over. Once it's warm it's a hit and miss when it long cranks then fires, but fires at 200rpm then builds up to idle (600rpm-/+)

@terryhughes4371 3 года назад

Did you ever get a resolution to this, I have the same problem

@brandonburr1514 3 года назад

@@terryhughes4371 Not yet. Going to get fuel pressure numbers later this week and go from there.

@3sixJ 2 года назад

@@brandonburr1514 update?

@sonnylewis5880 Год назад

I have the same issue any updates?

@nicholaspizza763 Год назад

Ever found the problem?

@terryguffey8049 5 лет назад

99 tahoe hard to get started until it warms up , then runs great . where do i start

@DWestInTheBuilding 4 года назад

Did you find a solution to your problem

@Archangel0804 3 года назад

mine starts right up in the morning. After it is hot is when I have a problem with it turning over slowly...extended crank. Any thoughts? I'm thinking its the MAF sensor, but no Engine code so far. UPDATE: Was the Fuel Pressure regulator. Five minute fix, starts up again like it was new

@followerofchrist1961 2 года назад

I have the same exact problem with my 03 avalanche. When it sits overnight, it fires up good. But if I go somewhere and let it sit for like an hour or two and try to start it, it would hesitate to start. Someone suggested to me that it could be the evap canister but I tried that a few days ago and I believe it hasn't fixed the problem. Perhaps you could try changing yours and see if it helps.

@Archangel0804 2 года назад

@@followerofchrist1961 most likely the Fuel Pressure Regulator

@luisr3721 5 лет назад

mine doesn't give codes, but sounds veeeery slow cranking and wont start. like its coughing or near dead battery but i charged it over 9 hours on a 6 amp (and battery is new from interstate). any clues?

@FlatRateMechanic 4 года назад

Slow-cranking could be caused by high resistance in the starter circuit on the power or ground side, loose connections at the starter or battery. Or just a bad starter. You would have to check how many amps the starter is pulling when cranking.

@jameswing2322 3 года назад

Did you ever figure that out ? I had the same problem and it took me forever to solve it .

@davefraley8875 Год назад

Have a 2007 Silverado 1500 4.3 vortec. Has hard start issue. Have already replaced fuel pump, spider injectors, spark plugs and wires, rotor/distrib.. still has hard start issue.. once started, I can turn off and back on immediately. But if sits for about 5-10min, goes back to hard start, the mechanics that have done the work, are at a loss at this point.. anybody have any advice, it would be greatly appreciated!!!

@coledean6673 Год назад

Same problem would love help

@rawfoodphilosophy7061 10 месяцев назад

gotta check all the sensors. ECT, TPS, crank sensor, ignition issues, maybe injector harness, purge slightly open, vacuum leak

@Ockhamcool 3 года назад

Besides the four places you mentioned, can’t fuel also leak from the spider located underneath the intake manifold?

@elcoco_drilon2652 Год назад

Yes the injectors can leak

@Dieseldrive Год назад

Mine dose that when it’s warmed up

@elderyounglagainandagain6613 Год назад

Or purge valve cylinoid

@jasonnunez323 4 года назад

Where is the vacuum line on a v6

@johnsaichuk6669 4 года назад

My 2002 Silverado with 5.3 L engine suddenly requires 2 cranks to start. I checked the fuel pressure with the return line open and blocked. Blocked the pressure exceeds 60 psi. Open it makes about 55 and running around 44 to 48. I did notice that it is not holding fuel pressure. It almost immediately drops to about 30 as soon as I shut off the key. What is the best way to determine if the leak down is injector or faulty pump. The truck has 285000 miles on it and is on its 4th fuel pump. The original lasted around 170000 miles. When the repair shop changed it they used a Carter fuel pump. It was defective and only lasted about 6 weeks. The second they installed at no charge lasted about 50000 miles. I changed that one (had time) and used another Carter because the wiring terminals had been changed by the shop.

@mariovillarreal3720 4 года назад

I have the same problem the peace of shit won't start right away, gas pressure it's ok 50 psi but it takes 2 cranks to start. Did you find the issue with yours?

@jameswing2322 3 года назад

pull a spark plug to check if it's an injector leak the video said .

@_itzomar1952 2 года назад

Did you ever figure it out ? Got the same problem here on 03 5.3

@justinstewart1499 2 года назад

@@mariovillarreal3720 hey did ou by chance ever end up pulling the plugs and figuring it out

@AlmostEverything4 4 года назад

Question. I have extended cranking on my 04 Tahoe every morning when the fuel tank is below 1/4. But if I keep the gas tank above 1/4 I don’t have extended cranking in the mornings. I’m guessing I need a new fuel pump??

@mrreviewsitall7496 4 года назад

Yep. The sock is probably clogged more towards the bottom of the tank

@FlatRateMechanic 4 года назад

Yes, I would definitely say bad pump

@danielduvall4154 3 года назад

Mine has always done the same. Now it's got a bad miss like it's down 2 cylinders and will stall on me. What else besides the pump could it be? 04 yukon

@victorwankel 4 года назад

I hange 2 pumps allredy. At first goes away then starts doing it again.. Hard to start in the mornings

@FreshKicks4545 3 года назад

Did you end up finding the issue?

@tommydelwadley884 5 месяцев назад

Where you at too help me out haha

@richardblevins7409 Год назад

How can I contact you?

@METALADIX 2 года назад

Mine dies after 1 start when sitting overnight, then starts up after a slightly longer crank on the second attempt. It's also running lean with a p0171 code.