in the early morning, my truck will start without any problems. But as the day heats up, and i go to the store or something, when i come out it won't want to start. Its not the fuel pump or fuel filter, so what other problems could be causing it not to start when its hot, but only when it cools down.


Asked by Jun 08, 2014 at 11:28 PM about the 1996 Toyota Tacoma 2 Dr STD 4WD Standard Cab SB

Question type: Maintenance & Repair

My truck is a Toyota tacoma, 1996.  4 wheel drive.  i have changed gas, changed the fuel
filter, and have tried injector cleaners etc.  What else could be causing it to not start in hot
weather, and only when my truck cools. It seems to vapor lock or something.

4 Answers


Will it turn over but not start? If so a Stuck open pcv and or egr valve can cause this sort of issue.

1 out of 1 people think this is helpful.

Thank you, that was very helpful. And yes it will turn over, but not start. How much would something like this cost to fix, more or less. If in fact it is the egr valve or pcv valve.


Pcv-- couple of dollars. Egr on the other hand could be much more 50- 100 just a guess. Might just try cleaning egr first carbon build up might be all that's keeping it stuck open. Pcv remove it and give it a shake. If you hear what's sounds like a ball bearing banging around in it it's ok. But if you don't hear anything then it's bad.

1 out of 1 people think this is helpful.
Best Answer

Just keep in mind these are just possible causes to this sort of issue.

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