98 SE Wont start if sits for 20-30 minutes
Originally Posted by BillBoost37
The diagnostics in the FSM point you toward a fuel pump being weak. If there is no fuel in the vacuum line for the FPR and it'* been changed already it may be the pump.
With your mileage..do you know if the pump has ever been replaced?
With your mileage..do you know if the pump has ever been replaced?
Fuel pressure problems can be tough to diagnose sometimes (FPR, check valve, pump, filter, etc), and you get in a tight spot having to assume that the recalled FPR is good. Having no change when the vac line is removed, I'd have to agree with Boosty and say you're seeing the max your pump can put out.
Old fuel pumps sometimes get weaker as they get hot during the day on a drive. This causes inefficiencies. If you trust your gauge, that'* some pretty low numbers. It might be time to swap it.
Looks like you're in KY, so there isn't much BC personal help there. Dropping the tank and doing the pump isn't too big of a deal. You need the pump and a new tank seal. Run the tank as low as possible, and have a friend ready to help. New tank bolts (and possibly straps) may be needed depending on your rust level.
Old fuel pumps sometimes get weaker as they get hot during the day on a drive. This causes inefficiencies. If you trust your gauge, that'* some pretty low numbers. It might be time to swap it.
Looks like you're in KY, so there isn't much BC personal help there. Dropping the tank and doing the pump isn't too big of a deal. You need the pump and a new tank seal. Run the tank as low as possible, and have a friend ready to help. New tank bolts (and possibly straps) may be needed depending on your rust level.
Originally Posted by willwren
Fuel pressure problems can be tough to diagnose sometimes (FPR, check valve, pump, filter, etc), and you get in a tight spot having to assume that the recalled FPR is good. Having no change when the vac line is removed, I'd have to agree with Boosty and say you're seeing the max your pump can put out.
Old fuel pumps sometimes get weaker as they get hot during the day on a drive. This causes inefficiencies. If you trust your gauge, that'* some pretty low numbers. It might be time to swap it.
Looks like you're in KY, so there isn't much BC personal help there. Dropping the tank and doing the pump isn't too big of a deal. You need the pump and a new tank seal. Run the tank as low as possible, and have a friend ready to help. New tank bolts (and possibly straps) may be needed depending on your rust level.
Old fuel pumps sometimes get weaker as they get hot during the day on a drive. This causes inefficiencies. If you trust your gauge, that'* some pretty low numbers. It might be time to swap it.
Looks like you're in KY, so there isn't much BC personal help there. Dropping the tank and doing the pump isn't too big of a deal. You need the pump and a new tank seal. Run the tank as low as possible, and have a friend ready to help. New tank bolts (and possibly straps) may be needed depending on your rust level.
I'm not too worried about the fuel pump ordeal, I'm in the middle of putting a 383 and T56 in my Sonoma, so I'm not worried about my abilities too much. It is just a hell of alot easier to swap out a FPR than a pump
Any suggestions on the best place to get a pump (price-wise) and I'm assuming stick with the Delco?
Thread
Thread Starter
Forum
Replies
Last Post
Pearl_bonnie02
Your Other Rides: Pics & Videos
8
Dec 11, 2007 05:16 PM
harofreak00
Your Ride: GM Pictures & Videos
15
May 21, 2007 08:30 AM




