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Jeep Liberty - Crank No Start

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Come along with Eric O. at SMA as we have a close look at fuel pump current waveforms on this Jeep Liberty that was towed in as a no start. It is easy to call a fuel pump but it is a lot more fun to have a look at how it failed. We also see the process of replacing the fuel pump too.
Be sure and check out the all new "Outdoor w/ Eric O. Channel" too! / @therealerico
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--Eric O.
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South Main Auto Repair
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Disclaimer:
Due to factors beyond the control of South Main Auto Repair, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. South Main Auto Repair assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. South Main Auto Repair recommends safe practices when working 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 video. Due to factors beyond the control of South Main Auto Repair, no information contained in this 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 in this video is the sole responsibility of the user and not South Main Auto Repair.

Опубликовано:

26 авг 2024

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Комментарии : 721

@joelb9446 8 лет назад

I got the chance to stop in and talk with Eric O just before he started this video. Having watched almost all his videos, it was very surreal to be standing at the scope looking at that waveform with him. Thanks so much for sharing your experience Eric!

@SouthMainAuto 8 лет назад

Haha you got to see the video live :) One of the few that have done that! What do you think did it turn out OK?

@joelb9446 8 лет назад

Thumbs up! Way to go the extra mile to find and clean out the contamination as well as verify the repair with the scope. You are a true pro (mechanic and educator).

@charlesmiller5078 8 лет назад

I long for the old days, when I could change my mechanical fuel pump on my 289, in 10 minutes, no torches needed. When I replaced my fuel pump in my 82 z, it wasnt in the tank, but the tank was easy to check for crud, the tank had never been messed with, after 30 years the tank was clean as a whistle, amazing. Great video, alot of nice tips, nice to have a extra person to hand you tools, and donate a extra hand when needed.

@seppa6417 8 лет назад

I long for the old days, too. Repairs and maintience were more frequent but completed with less tooling and mechanical experience.

@SouthMainAuto 8 лет назад

Oh man the good old days... Yes my Hannah is the best tool I have in the shop!

@jeffr0 8 лет назад

Draining and cleaning the tank. If only every mechanic had the same high standards as you. Great job, Eric.

@jbone2470 8 лет назад

This is why I and many others love your channel. You do it right the first time. Some would of put the new pump in and not clean out tank or do anything extra to make the job right and not make it a come back. Your trustworthy and we need more like you in this field.

@InsideOfMyOwnMind 8 лет назад

As someone who is not an automotive tech this video helps me appreciate what the good guys will go through for that last percent of quality work.

@AP9311 8 лет назад

Eric O. wanted to say my earnest thanks to you! having watched all of your SMA videos, I was able to diagnose my cruise control issues being not working. I borrowed my friend's verius scope to check the wave forms of resistance and ohms, it turned out I had bad brake switch and bad servo module plug, I replaced both, now I have fully working cruise control! THANK YOU FOR YOUR AWESOME VIDEOS! keep them coming!!! :) Josh from Idaho!

@SouthMainAuto 8 лет назад

Cool good to hear!

@christopherdherman1518 2 года назад

Always nice to have a helper that is knowledgeable. She deserves a hug from dad.

@baxrok2. 8 лет назад

Awesome! Replaced a Mazda 3 fuel pump last weekend. I used my new Vantage Pro and amp clamp for the first time and did exactly this! Checked waveform, amp draw, and calculated rpm before and after. Relieved to see that your after waveform was very similar to mine in that it wasn't all smooth sine wave but more of a sawtooth pattern. Thanks Mr. O!

@kevinwoodcock7578 8 лет назад

Love it when a "quick one" turns into a long one. Welcome home buddy and thanks again for doing what you do. Have a great weekend.

@SouthMainAuto 8 лет назад

Thanks!

@glazier4766 3 года назад

@@SouthMainAuto Were you hitting the gas tank under the vehicle or on top where you removed the noise reduction crap? By the way thanks for the video. Great info..

@galenlewis59 3 года назад

Thank you for this video. My daughters 2002 Jeep Liberty had the fuel pump go bad. It was nice to find your video on You Tube. We were glad to be able to be able to watch you repair one. We had a bad after market one at first attempt but exchanged it and replaced it and were successful. One thing to note (we didnt do this) is to not dry run the new replacement pump due to the fact that it can ruin it. Thanks again.

@Ram2k12 6 лет назад

Love the attention to detail, putting the trash back where you found it.. PRICELESS.

@brokenbow5964 5 месяцев назад

😂 laughed as soon as you showed the hammer. I did the same thing to my sister's Dodge neon years ago when she got stuck on the Coquihalla Hwy. It worked and got her home so I could change the pump. Thanks for showing the wave form. That was awesome to see. Your level of job quality is great to see in taking the time to clean out the tank.

@wyattoneable 8 лет назад

I'm in Columbus for a week of training but when I saw that you posted a video I had to take a break. I see Mike has been here, he's quick! "It's not rocket surgery". That cracked me up. That's a slick rivet gun. Thanks for taking the time to show us all the steps and the results on the scope. That's helps.

@mrs.onyango6504 2 года назад

Rocket surgery Lol!

@Bigjamez2011 4 года назад

Absolute best video known to man on how to replace a fuel pump on a Jeep Liberty ! Thank you very much for making such an in depth video on this !!

@piperjohn_3 5 лет назад

Classic SMA video. Loved the known good/bad waveform analysis, Hannah expert assist, rust whispering, and going the extra mile as usual with the fuel tank cleanup.

@markboza6215 2 года назад

eric you by far go to the earths end on being straight forward and to the point, my liberty just died and is doing same crank no start so if it is the pump im greatful for this video as i was already thinking i needed to drop the tank as i didnt even know there was a hatch access thank you so much!

@nolo1 5 лет назад

Loved that you took the time to take the fuel out and clean the tank out. Doubt other shops would have even bothered.

@johnnyw6249 8 лет назад

We would love to see more frequent video uploads! I think you may be overestimating the need for them to all be unique or unusual repairs. The "average day in the shop" vids, are some of your best! Thanks again for the videos!

@eddiemartinez265 8 лет назад

Yes here here .

@SouthMainAuto 8 лет назад

I would but it takes so much time. I try my best to get stuff up but this is a very busy time of the year :)

@RichardVissers 7 лет назад

thanks...had my pump fail, and this was perfect, followed your directions and it works first time!

@heathgarton3291 7 лет назад

Great video Eric. I had the fuel pump fail on my 96 f-150. I took the tailgate off. It was a pain in the a**. Thanks for showing us the technical way to do it. I have become a south main auto junky. I'm also a subscriber of your outdoor channel as well. As always be safe

@arcdraw 8 лет назад

I love the hammer to the gas tank trick. It's been a great "diagnostic" starting point.

@researchandbuild1751 5 лет назад

How ridiculous they bury that panel like that

@ScannerDanner 8 лет назад

Real nice case study Eric and some really good before and after captures!

@SouthMainAuto 8 лет назад

Thanks Paul :)

@jamesbenton4722 3 года назад

@@SouthMainAuto lq Z#

@AntonioClaudioMichael 2 года назад

What's up Paul Good to see you Around @ScannerDanner

@XqeDiosxqe 5 лет назад

amperage, volts, waves, forms, powers, grounds, systematic , pneumatic, voltmeter, calculations, spark conditions......... I just skip all that crap and change the fuel pump, thank you. you save me a lot of money.

@rickuyeda4818 7 лет назад

I worked with a guy who had a '62 Ford Ranch Wagon. The wagon was in the shop because the fuel pump wasn't pumping. The mechanic said the pump drive was broken and the cost to fix was more than the car was worth. It was around 1970 and my friend couldn't afford much. So I told him to call his mechanic and install a $12 SW electric pump. The mechanic said, "I never thought of that".

@williamwhite9767 5 лет назад

That sounds weird. They had mechanical pumps that worked off a cam lobe. It's not that hard to work on those engines. You could change out the cam in 2 or 3 hours. Well, that's assuming you didn't have to remove the grill.

@richardwheeler7954 5 лет назад

Great Video

@jamesh6229 8 лет назад

I am glad Chrysler made a panel to access the fuel pump, I think the rusty lock ring will be the next thing cause problems, it's too bad a new one didn't come with the replacement pump. Thanks for the video Eric.... always enjoyable.

@SouthMainAuto 8 лет назад

They are crazy expensive from the dealer I have come to find out !

@DVNelson 5 лет назад

Took the time to clean the tank out because it was the right thing to do. Love your work!

@LFTDoffroad 8 лет назад

Good times, thanks Eric. That access panel sure helps. Beats having to drop the whole tank, lol

@chupalia 7 лет назад

I think you have the best auto channel. I have learned so much from your channel.

@jcrdesigns719 4 года назад

Just watching you work I can tell your a good mechanic. Subscribed

@DocHoliday-to6kp Месяц назад

Just replaced my pump in the same Jeep. Thanks for giving me the faith I could do it. Be careful in the 02, 03, 04 Liberty's with the white plastic fuel pump cover flange, they are impossible to find. The later models mold it in as part of the fuel pump.

@geno55912 7 лет назад

Finally a manufacturer that though of the consumer, every vehicle should have one of these access doors where you don't need to drop the fuel tank to replace the fuel pump.

@randypq4671 6 лет назад

I cut a panel under the seat in my 2010 Camaro when I swapped to a bigger to run my supercharger. You are right, not sure why more vehicles don't do this.

@luical727 2 года назад

Love this channel Eric seems super nice and genuine. Overall helped me learn a lot. Keep up the good work. We need more mechanics like this.

@CHIBA280CRV 8 лет назад

Fantastic , learned plenty.. You are very thorough in your explanation and video..thanks Mr. O..

@joeytucker8161 8 лет назад

I really appreciate the videos, I'm just a house painter but you have taught me Alot to where I can work on my own crap. Just put a water pump and radiator on my t&c van. all with your help. thanks.

@roadkill5333 8 лет назад

A commutator?? A person that rides the bus to work, from the suburbs? A tv sports announcer?? If it weren't for jeep no starts, and Subaru head gaskets, you'd be like the maytag repair man! There were a dozen Jeep Liberty-crank no start videos in the suggestion list, when I loaded this episode!! Two were from you, two from Ivan, a couple were in Spanish!! Hey, a new idea for a RU-vid channel. South Main Jeep repair!!

@vanallen6391 3 месяца назад

The commutator is the portion of the armature where the brushes make contact.

@adampoconnor 8 лет назад

The whole time you were torching that rubbery goo I was thinking "man a torch that close to the fuel tank with the stuff lighting on fire" then when you said "It's probably long before this point you'd make sure you've got no fuel leaks" I pretty much lost it.

@SouthMainAuto 8 лет назад

Well I figure if you are not that smart, well then it was your time...

@longrider8265 4 года назад

Maybe thats why they recommend a heat gun and not an propane torch - just thinking out loud. Great work as usual though

@jdrs4214 6 лет назад

I really enjoy watching your videos Mr. Eric O.

@billymccagh5800 8 лет назад

just come back from holiday and it was nice to see more hands on keep up the good work Mr E.

@patcb829 8 лет назад

"Suppose they could have thought about this a little better", That's how you know you are working on a Mopar.

@jeremystockford533 3 года назад

Laughing in VW!!

@joelund655 5 лет назад

You have her trained very well

@frankv9068 6 лет назад

Thank You for taking the time to explain the wave form. I learned a lot from this video.

@chungaleta1234 8 лет назад

Nice one Eric,, 9 out of 10. Cuz no break cleaner was used. LOL!

@JohnRodriguesPhotographer 4 года назад

He's one of the most conscientious mechanics I've ever seen. If I lived in his area I would not hesitate to take my car to him for any maintenance or repair. I would rather pay him than pay anyone else to work on my vehicle because I trust he will do the proper job that is required. He won't do it half-assed any won't do any unnecessary work. Kind of weird watching him work if you get the feeling you know him. I wouldn't hesitate to call him a friend I can tell you that. He might think I'm a little sketchy though! Just kidding.

@cmp8968 7 лет назад

great video, very informative. thorough mechanic wouldn't hesitate to bring my vehicle to him. Wish I could say the same for most garages these days.

@davemaster001 8 лет назад

Welcome back Eric

@stevescott8758 8 лет назад

Nice chilled video, good before and after captures, wiggly lines make for compelling evidence. I especially enjoy your perspective on safety and tightening torques in the real world :) Keep the videos coming please Eric

@SouthMainAuto 8 лет назад

Always tighten to specs!

@bobmoy3406 8 лет назад

Knowing that you're using a Snap-on hammer, my guess that it is cheaper to buy the fuel pump than the hammer......hahaha

@gt500knights 5 лет назад

I have that same snapon dead blow hammer. It is a very very good hammer, very resilient to rupturing. But it's around 85-100 dollars if I remember correctly; luckily you only need to buy it once if you don't misplace it.

@joecostantino3684 5 лет назад

See thats ridiculous.. a hammer shouldn't cost damn near 100 bucks I don't care what brand it is. I've been using the same Harbor Freight Pittsburgh Dead Blow Hammer for nearly 10 years and even with all the abuse it's taken it still works as good as the day I bought it.. I think I paid $10 for it

@thagerdorn2009 11 месяцев назад

@@joecostantino3684exactly! You're paying for the name that's all. Someone makes it for them. I've owned snap on, cornwell, matco, hobo freight, kobalt, husky, craftsman, gear wrench etc...my hobo freight tools are just as good as the expensive shit. Power torque at O'Reilly is also fantastic. I worked there for years and I've got a lot of tools from there...and they are all still just as good as new years and years later. Yeah the tool trucks are cool, but it ain't worth it. I can do everything that someone with expensive tools can do.

@Mark-um3hm 19 дней назад

Great video, Eric. I totally agree. Why they would put that black tar like substance, over the access panel is a bit much, but great content, accept I got a little nervous, when you went in with the torch, to access the pump! Haha👍 You do things right. Most mechanics would’ve left that white stuff in the bottom of the tank. Not you. That’s why I watch all the time. If you want it done right, go to SMA! Nice job.

@thysonsacclaim 5 лет назад

Really, really wish I had a mechanic like you around here. Guys like you, who don't just throw parts at something or want to swap the whole engine out for a burnt valve or a faulty TPS and actually troubleshoot the issue are few and far between. I have learned so much from watching you, and your professionalism and expertise are admirable.

@johnkimmel2612 7 лет назад

A brass drift is good to use to remove the ring plus no sparks. Great video, thanks.

@skokie23 8 лет назад

You are a good mechanic Eric! A lot of mechanics would have let the white flakes go. KEEP EM COMING!!

@SouthMainAuto 8 лет назад

I do not like comebacks if I can help it

@mikechiodetti6737 5 лет назад

The waveforms proved the problem. Great Video!

@johnwright5731 8 лет назад

At the end where the junk got raked back exactly where it was is the mark of a true professional... Oh and the diag wasn't bad either. Good video Eric O!

@denniswilkinson1118 8 лет назад

Great video and info Eric. Those eagle eye views with the camera was very helpful. Good job.

@bernypetscars4717 7 лет назад

Excelente trabajo. Saludos desde México.

@JeffreyStrader 8 лет назад

Must be nice not having to drop the gas tank for pump removal.

@johnmurphy6366 7 лет назад

Hannah is the rock star of helpers,just hold this while I use a 3 pound hammer?excellent repair.

@diautorepair 8 лет назад

Good call cleaning it out , thought it was gonna go boom with the torch lol;) oh and hey it buying a 3/8 nano and air hose swivel from ur a store! You got the best price around and I didn't know it helps u out too so I'll try and pick up something new a week I just opened my own shop in mass

@donaldrackley626 3 года назад

Great video Eric. Keep trucking.

@SouthMainAuto 8 лет назад

HAHA First! Finally got it!

@dreally7029 8 лет назад

DISQUALIFIED ! judges have removed you from the finals.

@SouthMainAuto 8 лет назад

WHAT!? I was fair and square!

@TheDisgruntledMechanic 8 лет назад

Damn! I could've been 1st just didn't comment. I think HRC helped you rig the results!

@normansmith7806 8 лет назад

Sounds like this one was rigged :)

@marcodm 8 лет назад

18.03 Booom!! 😂 Awesome vid. I got me self an 03 liberty renegade.

@davidbronicki5024 8 лет назад

just for reference how many miles did this Jeep have on it?

@garyjohnson2879 8 лет назад

Hannah is in the house

@jesusramos-xy2fo 5 лет назад

Great Video. Thanks to you I replace my pump thank you keep up these videos.

@SteveRobReviews 8 лет назад

Nice one Eric, the wave forms on the new pump don't seem to be text book smooth but so much better than the old pump. 👍👍

@SouthMainAuto 8 лет назад

Good look Steve. 2 things going on there. One it is aftermarket haha and 2 it is brand new. Recheck it in a month and it will be totally different :)

@Nukem6477 4 года назад

He didn't mention the fuel filter!

@JohnRodriguesPhotographer 4 года назад

My dad who would be 97 if he were alive today, could tell you about the dangers of open flames and gas tanks! When he was youngster during the Depression, he was playing behind a gas station in garage with a friend. And there was a bunch of old junk cars back there. I guess you would call them collector's item now, but I digress. His friend had a dime. A dime back in those days was a lot of money! Especially during the Depression. For some reason the friend was playing with the dime around the filler neck on an old pickup truck. Probably just showing off his kids tend to do. He dropped the dime into the gas tank. He begged my dad to strike a match so he could look down there and find his dime. My dad was like no way! Finally dad relented and struck the match and held it at arm's length over the filler neck so his friend could look down the neck into the tank. Just says the friend started gazing down into the murky depths of the gas tank a jet of flame came out! they both took off running home. Next thing you know the friend's mom is pounding on my dad's door raising hell because her son came home with no eyebrows no eyelashes and no bangs! Dad could tell the story a lot better than I can! That man had a lot of stories!

@Franklinveterinarycenter1of4 2 года назад

what about exposing yourself to benzene that is in the gas......you put your hand in the tank. Yes, chemical, long sleeve gloves are available at harbor freight. You have to respect chemicals. Cumulative effect on the kidneys and liver will catch up with you later in life; seen a great many mechanics with kidney cancer due to chemical exposure over the years. My father was a fighter pilot in the Navy....benzene exposure resulted in kidney cancer. Respect the chemicals and wear the protection. I enjoy both channels and you have a wonderful family. Through your two channels, I have met your wife, kids, father, and two brothers. Very impressed with your work and your wonderful family.

@ctbruce 7 лет назад

thank you ! you've saved my daughters jeep.

@calebstovall3116 8 лет назад

Only hit this with a brass punch. He says while hitting it with a screwdriver. That have me a good laugh

@calebstovall3116 8 лет назад

gave*

@eddiemartinez265 8 лет назад

Wel it's a do as i say not as i do deal.

@calebstovall3116 8 лет назад

I know made me laugh

@eddiemartinez265 8 лет назад

Caleb Stovall CHRYSLER was not that bad till fiat got a hold of them only reason fiat make's money on the junk they make is people cant buy anything other than fiat's all the other car's cost to must to buy there.

@viz_aviz9189 8 лет назад

You to want to get out of your offices and read about the history of chrysler and what year fiat took over. What do you think you have to do with the fuel when you have to drop a tank from underneath and all the bolts and pipes are seized, give me one of these to do any day of the week

@63256325N 6 лет назад

That was a great explanation. I'm a complete moron when it comes to anything electrical and I got what you were saying. What ever happened to the good old fuel pump that was mounted on the engine in plain sight and soooo easy to get to? That pneumatic riveter is supper nice. Thanks for the video.

@PineHollowAutoDiagnostics 8 лет назад

Ahhh nothing like a bit of math in the morning :) Another quick shortcut to calculate the fuel pump rpm is to take advantage of the frequency "Hz" that the Verus displays once you set up your cursors... In this case one rev of the pump took 11ms, so the calculated frequency is 1/11ms = 90Hz (cycles per second). Since you want cycles per minute, just multiply by 60: 90 rev/sec x 60 sec/min = 5,454 rev/min. And BOOM, you're done!

@baxrok2. 8 лет назад

The pump current preset for the Vantage Pro displays frequency. I went peak to peak for 8 segments with the cursors and then multiplied the frequency by 60 and done. 119 x 60 = 7140rpm. Thanks Ivan!

@tctwg1 5 лет назад

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@gregk.6723 5 лет назад

@Nonya Bizness The only shit is between your ears, and that is not a theory, it's a fact.

@mikeymike3194 6 лет назад

Learning so much from your channel, thx and thumbs up.

@ThePlowGuys 8 лет назад

as the old saying goes. "Don't do as I do. Do as I say"..LOL good video. -John

@SouthMainAuto 8 лет назад

yes sir! was told that growing up... a lot!

@BobbyW00 8 лет назад

Thanks for adding in the fuel pump change Eric. We have this same model so I will save this video for later use.

@russbell6418 2 года назад

Man, you make me glad to live in the arid west. All that rust around the clamp ring! Wow. We don’t get that. Great video! Thank you.

@CarlosGarcia-kg3jo 8 лет назад

Thanks for the lesson Eric

@normansmith7806 8 лет назад

Good one Eric O ! Good work !

@Skipperau 2 года назад

The plastic frame is the tool tray for the jack and handle and the sealant s a butyl rubber sealant to keep the fumes from seeping into the passenger compartment via the access panel.

@ponyhorse127 8 лет назад

Great video Eric!!!!...that is a very usefull way to diagnose a bad Fuel pump!!!! without disasemble nothing!!.....Fantastic Tutorial!!!!....thanks for the knowledge!!!!....the only thing is I guess the operational rpm for that fuel pump must be around 2000 or 3000!!!...why!!! (well before the comment, DC motor speed depends directly on voltage, that is a law...now my comment goes...) because DC motor magnetic poles comes in pairs!!!...so to one positive magnetic pole corresponds a negative one!!...this should mean that one current zero must be for the damaged winding when magnetical positive (north pole...when terminal no 1 of damaged winding is up to the voltage positive brush)... and the next zero occurs in the 180 deg rotation for the other winding end (wich was negative magnetic polarity or south) now becoming positive!!!. I think DC fuel pumps must have at most two field windings built in rotor!!!...if they have more... the rpms should be lower, if they have less the rpms must be higher wich will lead to premature wear!!!!.....Hello to Hanna!!!...and greetings to all at SMA!!!!

@wysetech2000 8 лет назад

WoW....A positive comment from Paul Danner. Great job there Mr.O. A little penetrating oil or fluid film on the lock ring helps them to turn easier.

@NewLevelAuto 8 лет назад

Terrific video as always Eric. And a great understanding of the waveform

@SouthMainAuto 8 лет назад

Thank you sir! Hope I explained it right..

@shaneharrison4775 3 года назад

Wow cool seeing how you can go and test out the older pump thanks

@ozzstars_cars 8 лет назад

it would be nice if Chrysler used a rubber gasket to seal the fuel pump access cover. That might cost an extra 10 cents. What a pia. Nice job on the fix Eric

@eddiemartinez265 8 лет назад

True but how long will that junk be on the road you may put two or three pump's on in the life of that jeep not worth it.

@JackS425 8 лет назад

Yeah it would have been easier for service, but I don't think a rubber gasket would seal as well as that goop they use after 13 years.

@eddiemartinez265 8 лет назад

Jack S Yes so it worked just fine at least they did that and put a panel you can get in to for service.

@cipher255 7 лет назад

what did you hit in the parking lot with the hammer to quick fix it

@gaylanhutcherson1501 7 лет назад

You have really made this stuff easy to understand thank you Eric O.

@missionaccompli 8 лет назад

My mother has one of these Libertys - if I remember right it doesn't have locked access to the fuel cap. They bought an aftermarket locking cap to prevent mysterious additives by delinquents.

@michaelbariso3192 Год назад

A propane torch has always been the best way to find fuel leaks :-)

@toddnunley8591 8 лет назад

I Have to wonder why you don't spray down heavily rusted parts like that lock ring with a good penetrating oil and let it soak a few minutes before attempting to remove it. It seems you rarely use a penetrating oil. (from what we can see that is)

@KRN762 6 лет назад

My 07 Libby did the same thing. New pump, filter, FP relay, new NSS, new starter... Still had the crank, no start issue. Finally just sold the damn thing. Not another Chrysler product...ever.

@davidkroth 8 лет назад

17:40 Use the blow gun and the shop vac at the same time to catch the dirt kicked up by the blow gun.

@SouthMainAuto 8 лет назад

Good idea :)

@highroaddrifter 8 лет назад

Great video Eric i like the detail you put into your videos.

@justmejeff5356 4 года назад

Very nice work, I like your helpers never hear them complains

@sylvia4548 Год назад

How do I change my fuel filter for a 2011 Liberty Jeep and where is it located

@JohnRodriguesPhotographer 4 года назад

Just as you said I got to go to the bathroom oh, I'm thinking draining that pump makes me want to go to the bathroom. That's just too damn funny!

@saxdogg69 8 лет назад

Great vid as always. A lot of Chrysler hate in here from commenters, but that's usual for the Internet. I have 3 of 4 of my cars are jeeps and a ram. Granted, two of them are 2015s but one I've had for almost two years and no problems.

@philstuf 5 лет назад

Likely half a rotation, as the commutator has 2 stationary poles (or 4, depends on the motor); (Commutators are usually in pairs), but, I'm likely being pedantic, and I feel your diagnosis is not wrong at all, from what I can see... 8 Minutes in, so haven't seen the whole thing. I might change my mind. Keep up the quality work.

@CubasAutomotive 5 лет назад

Good video Doc O. Always love seeing the scope captures 😍

@WisdomVendor1 3 года назад

On your RPM calculation for the pump motors, when you consider a full cycle of the waveform, keep in mind that with a 2 brush DC motor each full cycle of a waveform will represent half a rotation therefore your calculations came up with twice the RPM that it is actually turning because those same commutator pads make contact on each brush twice per revolution.