Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
Hello, my name is***** fuel pump flow control module is what controls fuel pressure on this vehicle. What is the problem customer is having? Thanks
Does it seem to run fine after it does start or run rough?
This would most likely mean the high pressure fuel pump has failed. Problem would either be leaking injector or fuel pump, more likely pump. It is a 1.2 hour job book rate to replace and here are replacement instructions. Let me know if you have more questions, thanks.
That wouldl point toward pump. Here is a picture.
Under vehicle, that is #6 in the picture I sent you. Let me know if you have questions. Thanks.
That is the high pressure fuel pump.
That is correct, the high pressure fuel pump is the most likely cause of symptoms you are describing.
No problem, make sure to let me know if you need anything. Thanks again and have a good night!
Probably but to know for sure you would want to check for bleeding injectors during loss of pressure. If injectors arent leaking then replace pump.
By removing fuel rail but you should be able to look into spark plug hole and see/smell fuel too. Let me know how it goes, thanks.