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Discussion Starter · #1 ·
So heres the lowdown 2.8 4x4 4 speed If the truck gets up to operating temp and i shut it off and try to start it it will turn over but not run. I have spark and it looks like i have fuel the tbi is wet after trying ( hard to do with only me working on it) any Ideas im baffled
 

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My truck did the same thing, come to find out the coil was getting hot and breaking down. Sounds weird, but that is what it was. I got a new coil from oreilly auto and it's just fine now. Hope that helps ya out.
 

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Budget Ballin FTS!
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Same problem here..... and the bad thing is that after about a year your gonna have to get another one.. so keep the reciept.
 

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i saw what you did there!
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egr or module

one or the other probably

although a dying module usually causes the engine to stall when hot and running., and no re start of course.



if its the module then use lots of dielectric grease when installing the new one
 

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Discussion Starter · #5 ·
Thanks for the advice gonna try the coil, its never stalled as long as its kept running it will go for hrs, if that dont work i will be back.
 

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have someone watch when you turn it over is the crank turning ? mine had a bad ring gear on the fly wheel that only did it when warm. had to push & dump the clutch till I fixed it
 

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Mr. SQ
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could be a whole number of things. Mine was doing the same thing, but thats becaues I forgot to plug the EGR solenoid back in when I reinstalled my engine.
 

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possible: coil overheating/due for replace, fuel filter or pump going,
 

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Awww..you ain't got shit!
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Check the ignition module and also the wires that go from the coil to the distributor for damage. Is it carbed or injected? My 01 acted similarly when the pump started to go. Good luck.
 

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Discussion Starter · #14 ·
replaced the ignition module and it still does it sorry for the lack of updates i work the graveyard shift the fuel pump works just not sure what the pressure is and its injected. O and i was driving down the highway today and it up and died no power its sitting in the driveway with a battery charger on it at the moment.... any other ideas??
 

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You replaced the ignition module before checking things further? (not that it couldn't be the culprit of course)

driving and cutout again?

What does "Im gonna try the coil" in your response mean?
(did you buy a new coil? it's not mentioned), buy a new coil. first check coil to dizz wire, and fuel pump. btw: How are you verifying "the fuel pump works" again?
 

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Awww..you ain't got shit!
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You replaced the ignition module before checking things further? (not that it couldn't be the culprit of course)

driving and cutout again?

What does "Im gonna try the coil" in your response mean?
(did you buy a new coil? it's not mentioned), buy a new coil. first check coil to dizz wire, and fuel pump. btw: How are you verifying "the fuel pump works" again?
Yep, I had a problem with my 01 with a check engine light that I couldn't get to go away because it was throwing a false code. Replaced the module after exhausting every other avenue. Unfortunately it didn't fix it. Truck runs fine...great even...the light can stay on with its BS code for the oxygen sensor that doesn't exist. Point is, it was a waste of money (although I have a spare). They can test those at Autozone or Advance.

I agree with Joed. It is VERY common for coils to cut out when they start to break down. They exhibit the same symptoms you are talking about. They're cheap, so I would go there if you haven't already. It's usually the easy stupid stuff on an issue like this. As tinkerers, we sometimes like to overcomplicate it. :)
 

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Discussion Starter · #17 ·
i did replace the coil first. then the ignition module. and to test the fuel pump i jumpered the fuel pump relay and saw fuel in the throttle body. i will test the fuel pressure in the next couple days.
 

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I have a similar problem, but I don't believe it's the fuel or ignition. My 2.8 89 S-10 barely turns over when it gets to operating temp, yet I can jump start it in 2nd gear and it runs just fine. I have a feeling that the starter might be getting too hot from the exhaust, then taking a huge power draw to barley turn it over. I was thinking of building a heat shield for the starter. Any other ideas or related fixes?
Thanks in advance
Matt
 

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daily dragger
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i had a prob like that with an 94 s10.would start right up when cold.shut it off when it gets warm and it wont start just cranks.it was map sensor.replace it with a junk yard one and it been working great for 20000 miles.not sure if your has one but id look into it
 

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Had a problem like this on my '87 s10. It turned out to be one of the three relays under the hood. I forget exactly what was causing it, but it was something along the lines of the oil thinning out when it warmed up was lowing the oil pressure and tripping some safety feature.
 
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