Thread: Does this sound like a bad fuel pump?

I'm new here, but I would try testing the wiring first. Clear the codes after recording the information and see if any were from the( “It may have been damaged while bobbling around”) work you did. Good Luck

Rich

I'm having the same problem as the first poster in this thread, my car (2000 NA GT) seems to shutter sometimes when accelerating. It doesn't happen all the time and it seems to happen much more often if I am above about 40mph. I never really notice it happening when accelerating from 0 to about 40mph. The fuel regulator makes some sense to me, but I am a little confused by why I wouldn't see the problem on a more regular basis. I'm also a little confused as to why I wouldn't be getting a check engine light if the fuel pressure regulator was the problem. I thought that you always got an error code if your car had misfired. I did get a flashing check engine light one time when I really hammered on it for a long time while it was shuttering (a little frustrated troubleshooting technique, obviously not the best idea). Before I could even pull over to stop the light went off and the car started running fine again. Any ideas, explanations, or other thought would be appreciated. Thanks!

Originally Posted by boogsey

I'm having the same problem as the first poster in this thread, my car (2000 NA GT) seems to shutter sometimes when accelerating. It doesn't happen all the time and it seems to happen much more often if I am above about 40mph. I never really notice it happening when accelerating from 0 to about 40mph. The fuel regulator makes some sense to me, but I am a little confused by why I wouldn't see the problem on a more regular basis. I'm also a little confused as to why I wouldn't be getting a check engine light if the fuel pressure regulator was the problem. I thought that you always got an error code if your car had misfired. I did get a flashing check engine light one time when I really hammered on it for a long time while it was shuttering (a little frustrated troubleshooting technique, obviously not the best idea). Before I could even pull over to stop the light went off and the car started running fine again. Any ideas, explanations, or other thought would be appreciated. Thanks!

The FPR would have little effect at 40MPH+ If the FPR was bad it would only increase fuel pressure. At 40+ vacuum is down and the FPR does not play as much of a roll. You need to get someone to test fuel pressure with and with out the vac line and scan for codes. If the CEL was flashing that is a good sign that something (Bad) is going on. With out this information it's going to be hard for anyone to help. Try the Zone or Advanced they can at least get you the codes. Do not let them clear anything until you think the problem is fixed.

Good luck
Rich