fuel pump or relay? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 01-13-2011, 08:31 PM   #1
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Default fuel pump or relay?

I have a 94 lesabre which will run great and then die while driving.Sometimes it will fire right back up but then again it might take a while.While it was in the down mode i sprayed some starting fluid and it fired.Would a fuel pump act like this?fuel relay?
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Old 01-13-2011, 08:35 PM   #2
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Could be the pump going, could also be a dirty, plugged up fuel filter.
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Old 01-13-2011, 08:35 PM   #3
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Fuel pump or fuel filter. I would suggest testing the fuel pressure.
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Old 01-13-2011, 08:40 PM   #4
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thanks for the quick reply.Where is the filter located?
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Old 01-13-2011, 08:43 PM   #5
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Just a guess, but I would say just in front of the rear tire on the passenger side.
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Old 01-13-2011, 08:48 PM   #6
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thanks guys,has anybody heard of the fuel relay going bad on a 94 lesabre?Just trying to pick the easy before dropping the tank.Where would the relay be located?
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Old 01-13-2011, 08:54 PM   #7
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Yes, the pump can get tired. Changing the filter is easy and costs about $10, worth a try. If the relay was the problem the pump wouldn't turn on.
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Old 01-13-2011, 08:57 PM   #8
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thanks for the help!!!
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Old 01-13-2011, 10:46 PM   #9
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Also if you/or previous owners has run the car about empty alot the strainer could be dirty...BUt yes test the pressure if low replace filter then go from there
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