1999 Mercury Cougar Logo
Anonymous Posted on Nov 03, 2009

1999 mercury cougar. won't start...cranks...battery ok.

1999 cougar. won't start...cranks...battery ok. before they tell me I need a fuel pump I want to be sure the anti theft system has not shut down the fuel to the engine. how can I do that?

  • Anonymous Nov 04, 2009

    this gets strange.
    some months back a slight accident resulted in several dents...somehow causing the anti-theft alarm to sound at all hours. fuse was removed to stop alarm. car has run fine. theft light came on and stayed on. so it's hard to tell about that. it flashes normally when key is turned but engine now won't fire. one mech. checked and said the fuel pump is not working. he's VW...not Ford.
    my budget won't allow for a fuel pump replacement...so I want to make SURE it's not the anti-theft system shutting off the pump. is there anyway to disconnect the anti theft system in a V6 99 Cougar? I located what I think is the system control in the trunk...an 85120A SPI-3. if this is the anti theft device can I disconnect it? pls keep in mind I'm no mech.

  • Anonymous Sep 08, 2012

    ya the pump wont work if the alarm is on . so how do u turn the alarm off . when u lock and unlock with the key

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  • Posted on Nov 03, 2009
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V6 ? 4CYL? Have you verified SPARK? Did anyone check the "fuel pump inertia switch?" Its in the right front kick panel. If it was a "Anti-theft Issue" the light would be on or flashing.

  • Tim Armstrong
    Tim Armstrong Feb 21, 2014

    Thanks but i dont think thats the problem , v6 It starts after it sits for awhile

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  • Posted on Sep 21, 2012
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My 99 2.5l mercury cougar wont fire sence i just put my new alternator on. any ideas?

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  • Posted on Mar 06, 2022
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There is a "MegaFuse" just below the coil pack, make sure the connection on either side of the fuse is tight. Found a missing nut , which caused charging problems and sporadic no spark problems

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