If you let truck idle for a while it will stall and once again must let it sit for a few minutes and it will start.

You don't say what make of car but it's about the same for all. Your problem is the choke adjustment. The choke raises the idle when the car is cold and after warm up drops to normal. You are doing the chokes job when you hold the pedal down, once its warmed up the choke no longer functions till cold again. So check the choke and the high idle speed adjustment. Simple fix. Hope this helps mike

check fuel pressure

solved by owner

Sounds like the alternator is bad. You can take it to Advanced Auto Parts or Autozone, and they will test both the alternator and battery for FREE. If the battery was bad, the car usually won't turn off once started because the car will be running off the alternator. Not to say I havn't seen a battery do that, but it is rare. To me it is the alternator. Plus, Autozone or Advance Auto will have your alternator in stock.

did u change the gas filter if not i would try that good luck gordon

try throttle position sensor

Is the Service Engine Soon (or Check Engine) light illuminated on the instrument panel? If so, then have someone pull the codes and post them back here. Autozone will do this for you at no cost.Caution: don't purchase any parts after reading the codes on their recommendation! If no codes, then suspect either a bad crankshaft sensor or camshaft sensor. There are other possibilities too, but these are primary. I have seen MANY bad crank sensors do exactly what your describe without setting a code.

Check for vacuum leaks. Also try cleaning the ISV.


If that doesnt work go to vwvortex.com and post your issue there

Possibly faulty ignition module is the problem, stalls when engine is hot when you sit for a while it cools off and runs again until it heats up again, those are usually the symptoms of a bad ignition module and after a while it may give out all together and not run at all, usually if the module is at fault it shuts down the fuel pump so the engine don't load up with fuel, do to when engine continuously cranks over the injectors never stop squirting fuel and flood the engine do to lack of spark which is produced by the module, this could possibly be your problem.

You have one of two very common problems.
Number one may be a stuck open EGR valve
Number two would be a failing Idle Air Control valve (IAC).
Try this: Open the hood & locate the EGR valve, close to the firewall, behind the intake. Find & take with you a small hammer. The next time that it happens, open the hood & tap on the EGR valve. If it is sticking "open" the tapping may dislodge the carbon particles that are keeping it open.When the EGR valve is open, exhaust is getting into the intake at idle, and this will def stall out the car.
There is no repair to the IAC valve, it would need to be replaced if it is bad.
One of these two scenarios will cure your problem, I see it every day.