1990 Buick LeSabre Fuel Pump Failure

HUNTER999

MEMBER
9 POSTS

Hello,
Have a 1990 Buick Lasabre Custom, worked fine until Coil pack went several weeks ago,replaced it went fine for a few days ,fuel pump failed ,replaces it 3 times in 3 weeks,dont know why its destroying fuel pumps, any ideas,Thanks in advance :) :evil:

Aug 30, 2006 at 11:56 AM

JDL

✓Experienced Mechanic
16,098 POSTS

Sorry for the late reply.

Did you check for proper fuel pressure. If pressure too high, check return side of fuel system. If pressure too low check the supply side of fuel system, also check fuel pressure regulator. Did you replace fuel filter. Check proper voltage and ground at fuel pump. Check fuel lines aren't clogged. Check fuel pump amp draw.

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Have a good day.

Mar 31, 2015 at 7:44 AM

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Suggested Repair

Check fuel pressure. If it is too high, inspect the return side; if too low, check the supply side and fuel pressure regulator. Also replace the fuel filter, verify voltage and ground at the pump, inspect for clogged fuel lines, and check fuel pump amp draw.

Conversation Summary

The owner of a 1990 Buick LeSabre said the fuel pump failed three times in three weeks after a coil pack replacement and asked why pumps were being destroyed. The expert recommended checking fuel pressure, the return and supply sides, the pressure regulator, fuel filter, pump voltage and ground, fuel lines, and pump amp draw.

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1990 Buick LeSabre Fuel Pump Failure

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