hello everyone, i have a 1997 tahoe, and my problem is i let it sit for 1 day and it wouldnt start after that. the fuel pump is turning on, new fuel filter,getting a good spark . before not starting, when i start it up in the mornings and pull off, it would hesitate so i thought it was the fuel filter so replaced it. it still was doing the same, so i replaced the plugs, wires. after that i drove for that day, but the truck was already warmed up, so i noticed no problem. let it sit for a day and this is where im at now. can anyone tell me anything else i need to check or do?

 

my '98 1500 and 3500were doing the same thing. i changed the crank position sensor and that solved my problem.

 

i replaced that a couple of months ago. because it will turn but wont turn over, could it be the injection pressure regulator. would that stop gas fromopening the injectors( someone looked at it and said the injectors were not opening) . or do you think its the computer?

 

My 99 tahoe is doing the same thing. Sits over night or for a couple hr's and wont start, it cranks over fine just wont fire up. I checked my fuel pressure and found I was only pushing 40psi whencranking the motor. it should be at 60-66psi. I'm changing my fuel pump if that doesnt work i'm gonna try the presure sensor in the intake.