Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Hi there, I am Cam. Was there any debris in the fuel lines or fuel rail after replacing the parts? These were bad for a series of failed injection pumps, specifically a ceramic part inside failed and caused debris and that debris plugs up the fuel rails. so at this moment, how much have you tried pumping it after the replacement? This may take ALOT Of pumping to refill the lines as well as purge the air out of the high pressure lines.
If you can, please remove the fuel pressure relief valve on the back end of the drivers side fuel rail and see if there is any debris in there.