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Fuel Pump Done?

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Old Sep 6, 2008 | 10:44 PM
  #1  
85Iroc-Z's Avatar
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From: NE Pennsylvania
Car: 85 Iroc-Z
Engine: 383 TPI Procharger D1SC
Transmission: TKO600
Axle/Gears: Strange S60 3.73
Fuel Pump Done?

My car was recently getting harder to start (long cranking). Now im wondering if my fuel pump is bad because I can start the car up but it will sputter real bad and then die a couple seconds after that. My fuel pump fuse keeps blowing also (cant figure out why). So does it sound like the fuse is causing my problem, or does it sound like I have a bad fuel pump?
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Old Sep 6, 2008 | 11:10 PM
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Re: Fuel Pump Done?

One thing you can try is disconnecting the fuel pump connector located under the car, in front of the gas tank. You will not be able to start the car because you will have ZERO fuel pressure but you could see if the fuse blows again when you CRANK the engine.

If the fuse still blows then it is probably a problem somewhere before the fuel pump connector.

If the fuse does NOT blow then you can reattach the connector and see if the fuse blows again. If it does I would assume that means the problem is somewhere between the connector and the items inside the fuel tank.

When my fuel pump did not supply enough fuel pressure and I CRANKED the engine, the engine would 'catch' then immediately die. Over and Over. In my case it was a 1.75 inch submersible hose inside the fuel tank that had become bloated and cracked. It attaches between the fuel pump motor and the hard line that transfers fuel out of the fuel tank.

But try to track down the cause of the fuse blowing before dealing with the items in the fuel tank. Hopefully you will not have to go into the fuel tank.

It would be of interest to measure your actual fuel pressure if you could get your fuse issue resolved.
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