2001 Chevy Tahoe Turns off at idle

SWANMADE

MEMBER
2001 CHEVROLET TAHOE
V8
2WD
AUTOMATIC
143,000 MILES

When using the truck after a few hours, when I start it up, it cranks up fine, but if I dont take off or press the gas while in park it will die out. Even if I do take off sometimes, when you make a sharp turn, it will die out. This only happen during the first 5 minutes of driving. After that everything is fine. I never have a problem starting it back up. If I go to the store for an hour or so and hop back in, no problems. Just when I let it sit for a while, the same problem starts for the first five minutes again-then everything is fine. Ive tried better gas in it, but that doesnt help. I had it checked before at an auto parts place for battery/alternator issues. They said I needed a new battery and the alternator was fine-I replaced the battery and and they ran the check again and said those two parts of the vehicle was good. Have any clue what it is?

1 Reply

BUDDYCRAIGG

MECHANIC
2,262 POSTS

I want you to do a fuel pressure test. And watch the needle when it starts doing it's thing.

I worked on a grand prix that was doing something very similar to that.
It would even stumble while you were trying to drive in the first minute or so.

It turned out to be when the car was sitting, the fuel was draining back into the fuel tank, sucking air into the line, and when the air bubble got pushed back up to the injectors, the engine would freak out.