Question about 1985 Oldsmobile 98

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Fuel pump How do you find out if your fuel pump is bad, without dropping the gas tank?

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  • donna1961 Oct 13, 2008

    i dont know if mine fuel pump is bad or if the fuel filter is bad. my 95 ols achieva is looseing power and it acts like it want s to die

  • pookie2me Feb 19, 2009

    I smell gas

  • deant65 May 11, 2010

    They stopped making Olds Achieva's in 1994

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  • Master
  • 291 Answers

At the battery there is a tan or brown wire that if you touch it to the pos battery post should make the pump run. This bypasses the relay. Also, you can put a fuel pressure tester on the injector fuel rail - there is a connector that looks like an air pressure valve. Turn on the key and the pump should run. Pressure s/b typically arount 36 - 45 lbs. The motor will run with pressure down to about 28 - 30 lbs although maybe not very well. Below about 24 lbs it will simply not run at all. Sometimes when a pump goes it quits entirely, and sometimes it just gets tired but doesn't stop completely.

Posted on May 15, 2008

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Where is fuel pump do i have to take off tank to chang it for a 1999 alero

Posted on Jan 10, 2009

You don't have to drop the gas tank. if you pull up the carpet in the trunk, there is a hatch that opens directly above the fuel pump for changing it.

Posted on Oct 08, 2008

2 Suggested Answers

SOURCE: the car stalls and I

The fuel filter is a metal one and it is located under the backside of the car by the fuel tank (right hand side).

Posted on Sep 19, 2008

bunnydawg
  • 5158 Answers

SOURCE: Fuel pump

looking at the notes i have on it... you have to drop the tank to change it

Robert

Posted on Feb 20, 2009

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