Question about 1989 Pontiac Firebird

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1989 formula firebird

Car cranks but does not fire. fuel directly in will allow to crank for a sec. told fuel pump was bad. how do i replace it?

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  • dunkinjeremy Jul 13, 2008

    how hard is it to check if fuel pump is the culprit?

  • dunkinjeremy Jul 13, 2008

    how hard is it to check if fuel pump is the culprit?

  • warlikemount Feb 05, 2009

    I just welded on a new muffler to my 89 firebird and, now wont start. I have no fuel pressure. I did just change the fuel pump a week ago but, has ran reat sice. Could welding on exhuast cook the relay for fuel or is this a differant problem? Thanks........

  • Anonymous Mar 19, 2014

    replaced fuel pump an filter an cranck sensoran still wont crank



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Check the fuel pump relay it is next to the power brake booster

Posted on Jul 31, 2008

  • nunezttu Apr 18, 2011

    What if the relay is good?


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On that particular model, you'll have to unbolt the rear end enough to lower it to gain access to dropping the tank. Use a jack and lower it about 6 - 8 inches. Once you're done that, you'll be able to remove the gas tank and access the fuel pump to replace it.

Posted on Jul 13, 2008

  • Lee Quiroz
    Lee Quiroz Jul 13, 2008

    Run a jumper wire off of the battery and remove a little of the insulation off of the power wire to fuel pump. Touch the wire with your jumper and the pump will either hum or it will not.



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