Car or Truck Won't Start - Cranks But Won't Start - Diagnosis and Repair 

Hopefully it helps you get it fixed!

You bet!

Glad I could help

I appreciate you adding to the knowledge base.

Hey bud did u replace ur alternator before the belt damaged wire? We recently replaced my alternator and now having crank issues

@@haydentherooster5734 no, I have not done any work on the alternator

Guys...my 2005 Kia Rio having same issue. It crank but won't run IF the engine stop for like more than 4/5 hours (morning going to work). Once it can start and run, I will not have this issue. Had replaced fuel pump and it's running good for more than a week. Suddenly alternator gone bad and had to replaced. After replacing the Alternator, this issue failed to start happened again the next day. Had replaced the starter motor since it's like dragging but the issue still remain. Any advice guys?

I think my wiring is bad

You’ve so welcome.

Definitelt

You are welcome. I hope it worked for you too!

Sorry I’m not a mechanic so I don’t know about all of those issues.

Sorry I am not sure how to test it without removing the gas tank.

@TightWadDIY Hi.no needs to remove the fuel tank to identify if fuel pump is faulty .However, it can be tested by removing the cap on fuel line manifold to fuel injectors and by using fuel injection pressure tester you can identify if the fuel pump is faulty and usually the pressure should be between 50 to 60 psi after the car ignition is on .regards

Hey man was it same issue? I have a 2013 doing it now

My ‘08 just started doing the same thing and I can’t figure out what it could be. Did you figure out yours since it’s been a year ago?

​@@beevang600figure it out???

That’s great!

@@TightWadDIY Actually, after three days of no problems, it didn't start after a ten-minute drive. I am stumped.

Sorry. I’m not sure.

Mine has a fuse and a relay both related to the fuel pump. Check for a relay.

Check your crank sensor wires too.

Did you every figure it out?? Money is doing the same 01' new fuel pump, crank sensor.. about to do everything in this video tomorrow. This is a mission 🙄😅

​@@BearJangles I don't think it's the crankshaft issue since it's turning ,check for fuel filter.

Timing change?

I would replace the fuse and relay first even if the fuse tests good.

Same problem in my 02 Honda Civic still trying to figure it out if i get a jump starts right up . Wich fuse would you recommend replacing ?

Same here. It was working fine yesterday but this morning it was -50 so I thought that a jump start would've done the trick but still just cranks without starting 😕. Is it just the cold weather or something else.

@@marissapaigemameanskum6241 It’s possible. You could have water in your lines or pump that froze.

Since you’re symptom is related to temperature- as you say when ( cold ) - and your fuse are good - I would check coolant temp sensor Coolant temperature sensors of , of course , monitor coolant temperature but - IF - there calibration gets skewed ( becomes inaccurate) They work by changing their resistance with a change in temperature - the engine ECU / PCM uses this change in resistance as a signal in fuel delivery calculations to the fuel injectors - so occasionally if a coolant temp sensor is not reading the coolant temperature accurately When you try to start the engine - the inaccurate reading by the ECU / PCM does not calculate for proper fuel delivery to the cylinder’s and can starve or flood the engine - generally- sense a cold engine needs more fuel on startup the ECU / PCM tends to flood the engine immediately when trying to start - and since the air fuel mixture is too rich - results in the engine flooding and not starting. Sometimes on modern fuel injected engines - you can get them to start by performing clear flood mode start ( holding the accelerator pedal to the floor ) This is ,of course, only a possible cause of your condition - as there are many possible reasons which will cause a no start condition. Temp sensors can be checked by placing in ice water bath ad then hot water / just below boiling and checking your ohms of resistance as with a multimeter - using a temperature/ ohm’s chart for the coolant temp sensor. All troubleshooting ✌️

So did you get it figured out?

My 08Sequoia just turn off yesterday when park wouldn’t start back up tow it to dealers they said fuel pump 1400 dollars later wow so tow it home ran a scanner code was p0335 crank position sensor now that’s only 119 oem part starting there first now battery need replaced from 4/18 have a charger on it now battery says maintenance free wow just like the transmission so not true

Starter

@@abouhemeed no it's something more complicated

If it cranks turns hard fast but no start, possible bad or going bad ignition module or fuse or CPS or ECM or fuel pump or fuel pump relay or fuse or clogged fuel filter or broken wire or bad ground or out of gasoline?????😮😯😲😉😏😀😃😄🤔😆😅😂🤣🤬🤬🤬🤬🤬

You can test it with a multimeter for continuity across the two points.

It’s impossible to diagnose that remotely. Sorry.

How do you know the plugs aren’t firing?

There are other things that could be wrong too

It depends on the vehicle.

@@TightWadDIY my tacoma 2016, has an issue, about, (Check Sistem Charger) I was driving and suddenly stopped, I thought it was the battery and I changed it, and don't crank it up, now I changed the alternator and still on the issue, it looks like full pomp doesn't work.

My issue was the ignition fuse but it could be any of the fuses I mentioned.

Sorry. Hope you get it fixed.

Do you mean the starter?

Could be the fuel pump.

I hope you can get it finished!

Sounds like an oil issue.