- Joined
- Jan 28, 2011
- Messages
- 3,485
I heard the same thing just recently. Tank not venting properly was suggested. I just do not understand this as the pump in the tank is suppling a larger amount of fuel than the engine requires and the overage returns to the tank via the return line. Thus there is no shortage of fuel at the injectors but who knows. Worked in a GM dealership fixing cars for over 10 yrs prior to current career and never had experienced this problem.
I do know that if the tank does not vent there is a vacumm and the engine will be fuel starved prior to stalling and after a few minutes the problem is gone the engine starts up fine and you can drive again until the vacumm builds back up again.
My 07 Cobalt is different as it does not have a return line. It has been suggested that to improve power etc there should be a return installed for the power adders. Also on an episode of 2 Gus Garage on SpeedTV they installed a return line on a newish Mustang (I think, I can not remember the car to be sure) to also help in making better power with the power adders they had installed on the car.
I do know that if the tank does not vent there is a vacumm and the engine will be fuel starved prior to stalling and after a few minutes the problem is gone the engine starts up fine and you can drive again until the vacumm builds back up again.
My 07 Cobalt is different as it does not have a return line. It has been suggested that to improve power etc there should be a return installed for the power adders. Also on an episode of 2 Gus Garage on SpeedTV they installed a return line on a newish Mustang (I think, I can not remember the car to be sure) to also help in making better power with the power adders they had installed on the car.