Question about 1995 Mercury Grand Marquis

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1995 MERCURY GRAND MAQUIS STALLS IN TRAFFIC. I'M ABLE TO START IT UP RIGHT AWAY THEN A LITTLE LATER IT STALLS AGAIN. CHECK ENGINE LIGHT DOES NOT COME ON. JUST HAD THE SPEED CONTROL FIX BECAUSE OF RECALL. HAD SPARK PLUG WIRES CHANGE DUE TO AGE.

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  • kwilliams18 May 26, 2010

    I believe it was helpful. I gave your suggestions to Pep Boys, I won't really know until tomorrow. Thanks, kwilliams18

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  • Mercury Master
  • 17,970 Answers

Check the filter; likely the fuel filter is clogged so you need to change it. If you can keep the engine running by pumping throttle a few times at start up, and then it runs.

Also, its possiblke that you need check (or replace) the IDLE Air Control Valve because it did stay running until it was warm.

Tell us news.

Posted on May 26, 2010

  • 2 more comments 
  • kwilliams18 May 26, 2010

    I had the fuel filter replaced recently. Could it have been installed incorrectly?

  • ZJ Limited
    ZJ Limited May 26, 2010

    Also I suggest check your relays (EEC and Fuel Pump); they are located in the engine compartment fuse box (page 276 and next). When the
    relays age the coil will become weak and the contacts inside the relay
    corrode. The PCV tube which is located at the rear of the engine has two vacuum
    fittings that collapse and this will cause stalling. The Mass Air Flow sensor is prone to becoming contaminated with dirt and
    oil and will also cause stalling problems.

    Good luck.


  • ZJ Limited
    ZJ Limited May 26, 2010

    The fuel filter juts have one way to install, is so hard that you have mistake there; confirm with this procedure...



    Also, check the vacumm hose behind throttle body to the PCV valve, cracked is common.

  • kwilliams18 May 26, 2010

    To see if that might be the cause, I would have to tell the guys at PEP BOYS to look into it. Thanks, kwilliams18

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