Possible fuel pump problem?
Thread Starter
Race Director
Joined: Aug 2001
Posts: 10,783
Likes: 15
From: Hurricane Alley
Possible fuel pump problem?
Hopefully I can explain this well enough for someone to help me. About two and half years ago, when I would drive my car it would feel like it wasnt getting enough gas. I had to push the accelerator pretty hard to get it to go. It was kind of sputtering I guess you could say. Well I changed the fuel filter and everything was fine. About six months ago it started doing the same thing so I thought it would be the fuel filter so I changed it again and everything was fine again. Now its acting up again. It doesnt seem like it could be the fuel filter again in that short of time. I might be wrong though. I talked to my dad and he said I need to check the fuel pressure, that it might be the fuel pump. Anyone have any ideas? Thanks in advance.
Thread Starter
Race Director
Joined: Aug 2001
Posts: 10,783
Likes: 15
From: Hurricane Alley
Ok. Dont mean to sound dumb when I ask this, only cause Ive never done it before. 
In the pic below, Im assuming thats where I would test it at? Any suggestions on where to take it? I dont have the tools for it obviously. Thanks.
In the pic below, Im assuming thats where I would test it at? Any suggestions on where to take it? I dont have the tools for it obviously. Thanks.
Le Mans Master
Joined: Jul 2005
Posts: 7,121
Likes: 3
From: Shreveport/Bossier Louisiana
St. Jude Donor '08
No thats the fuel pressure regulator. Take your drivers side FRC off and pointing towards the front of the car you will see a nipple with a cap on it at the end of the fuel rail. Unscrew the cap and screw a pressure tester on it. You should be able to turn the key on and it should ready 58 psi.
Do you use the same gas station all the time and is it quality fuel? You surely dont want to get trash in those lines. I hope this helps
BTW, dont take it anywhere. You can get the pressure tester from any auto parts store and its very simple to do. I dont even want to guess what the dealer would charge
Do you use the same gas station all the time and is it quality fuel? You surely dont want to get trash in those lines. I hope this helps
BTW, dont take it anywhere. You can get the pressure tester from any auto parts store and its very simple to do. I dont even want to guess what the dealer would charge
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
No thats the fuel pressure regulator. Take your drivers side FRC off and pointing towards the front of the car you will see a nipple with a cap on it at the end of the fuel rail. Unscrew the cap and screw a pressure tester on it. You should be able to turn the key on and it should ready 58 psi.
Do you use the same gas station all the time and is it quality fuel? You surely dont want to get trash in those lines. I hope this helps
BTW, dont take it anywhere. You can get the pressure tester from any auto parts store and its very simple to do. I dont even want to guess what the dealer would charge
Do you use the same gas station all the time and is it quality fuel? You surely dont want to get trash in those lines. I hope this helps
BTW, dont take it anywhere. You can get the pressure tester from any auto parts store and its very simple to do. I dont even want to guess what the dealer would charge
You have posted the correct fuel pressure to look for. The only thing I would add is that after the initial pressurization occurs when the pump comes on, it is not uncommon to see the pressure drop off slightly to maybe 51-52-53 psi. This is of course when testing the pressure with the engine off and the key turned on, so don't be alarmed to see the pressure drop slightly within a few seconds or so. With the engine running, it maintains a much more constant 58 psi, plus or minus a pound or so, either way. HTH
BTW, that is NOT the fuel pressure regulator on the fuel rail in the photo. Since he has a 2002, that device is a "fuel pulse dampener". His fuel pressure regulator is in his fuel filter. The fuel pressure regulator for '97s and '98s (only) is located there.
HTH
Last edited by LoneStarFRC; Apr 20, 2008 at 04:55 PM. Reason: correction
Team Owner
Joined: May 2001
Posts: 36,836
Likes: 244
From: Dear Karma, I have a list of people you missed.
St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15-'16
Have you checked the DIC for trouble codes (called DTCs)? That can be a very helpful tool in diagnosing problems.
Since you seem to be rather inexperienced here, I'm going to suggest you take your car to one of the shops in your area that work on Corvettes on a regular basis. You show your location as "hurricane alley", can I assume you are in Florida? If so, there are a number of good reputable shops in FL that can help you who are also Corvetteforum vendors and participate in the various threads here almost on a daily basis. Even if you just want them to diagnose the problem, it's worth the money you pay to find the problem. If you do decide to tackle a repair yourself, at least then you have a starting point on what to replace/repair. Otherwise you will just wind up running in circles and guessing. That can get expensive.
HTH
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