I think my fuel pump is weak and about to fail. Cold starts take many cranks before kicking over, but once started it seems to run fine. Cold start fuel pressure checks over last three days show marginal pressure, especially at idle: engine off, key on: varies from 10-20psi; idle running 30-31psi; throttle applied 30-40 psi, but sometimes spikes lower than 30; 5 minutes after engine off: 30-32 and holding. All sensor/module voltage checks show voltage at appropriate level: 12.45. Specs call for 35-50 psi at idle.
What do you think? Thanks
have the same problem?
Sunday, September 5th, 2010 AT 9:30 PM