My s10 truck had tank-fuel pump replaced, it was acted like it was staving for gas then it would stall. just got it out of shop ran a dianostic and all that came up was o2 sensor and trans slipping. still is stalling when it gets hot, drove all winter over 5000 miles and didnt stall one time as soon as the weather got nice and warm, it shut off again. but if i set for 10 m-30 min. it will start and run again.
An expert who has achieved level 2 by getting 100 points
An expert that got 5 achievements.
An expert that has over 500 points.
An expert whose answer got voted for 20 times.
Re: starving for gas when the weather is hot
Hmmm sounds like ignition module under distributor rotor button is opening up when it gets hot.after cool down will restart suggest you replace it , it's fairly inexpensive and they are very prone to heat related failure.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
I would focus on fuel delivery including fuel pressure. Any of the sensors would turn the check engine light on, but low fuel pressure would not. Fuel filter, problem with a line going to the tank, debris inside the tank blocking the pump, etc.
Change the fuel filter. It is usually located passenger side along the frame rail ahead of the rear tire. You're right, it's starving for gas & because of this your fuel line is heating up & causing vapor lock. This is why your car won't start when hot. Good luck!
Measure fuel pressure on injector rail - should be 38 to 40 psi. If low or fluctuating, then replace regulator. Another possibility is the in-tank filter being clogged - rare I know, but trash in the gas tank and it's clogged.
Has Neon do same, I ran fuel at low level, on hot day, ran engine until it started to act up & threw a fuel pressure gauge on it. Was at approx 5 psi. Cold next morning, 48-50 psi. Always hot day about 30-40 miles into work in morning, o.k. Sit in hot sun all day & would happen 3-4 times on way home. Sit and let cool, 20 minutes or so & go again for a while. Cool day, no problem. Change pump I would.
I would definitely consider the fuel pump. I had long turnover times before starting for years, but even worse was in hot weather it would just stall while driving. Sometimes it would only idle, but not run if you pressed the gas very far. Park it for 20-30 minutes and it would run again without another problem for weeks. Dealers and mechanics kept replacing other things like ignition coils and distributors. After a conversation where someone said they had the same problem, but only when they had less than half a tank of fuel, I knew it was the pump. I replaced it myself and all problems went away.
The fuel leaks back down to the tank and air gets in the lines. Then the pump is slow to build pressure up again. If you turn the key on, but not start, wait 45 seconds, off, on again but not start, wait again, now start it will take a little less time to start, less battery drain, until you fix the problem.
You may not have the heat problem in Canada. But here in Georgia it gets hot enough that if the fuel tank is low and the pump has this problem, it will overheat and shut down till it cools. A full tank helps it keep the pressure up and serves to cool the pump.