Looking for a little wisdom, (help). I have a 2000 Yukon XL. Problem--All of a sudden, went to start up and won't keep running after start-up .Pump kicks on with key on, for few seconds and starts up again when turning to start (LOUD).
Continues to run for another 5-15 seconds while car is running or trying to stay running. Dies, Coughs. will not stay running. I did fuel pressure test. 20 PSI. Changed Fuel Filter, No difference! Pulled vacuum line on regulator, no gas showing up. Assuming that's OK. Installed New fuel pump from O'Reily's Auto Parts 18 months ago. Thinking pump is bad. I'am I missing something?
Continues to run for another 5-15 seconds while car is running or trying to stay running. Dies, Coughs. will not stay running. I did fuel pressure test. 20 PSI. Changed Fuel Filter, No difference! Pulled vacuum line on regulator, no gas showing up. Assuming that's OK. Installed New fuel pump from O'Reily's Auto Parts 18 months ago. Thinking pump is bad. I'am I missing something?
