Question about 1997 Mercury Grand Marquis
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Posted on Jan 02, 2017
Your manual should tell you that. Also check your brake light switch by the brake pedal. It also disengages the cruise. If it is bad the cruise will not work but the brake lights may still work.
Posted on Jul 03, 2009
i had this problem on my 2004 and it was the headlight module when it gets hot it turns out, and comes back on when it cools off
Posted on Aug 11, 2009
that is caused by a "circuit breaker" not a relay. when it starts flashing, carefully go over the harness from the firewall to the rf headlamp, there is a short somewhere.
Posted on Oct 15, 2009
There are eight COPs (coil-on-plugs) to remove. Using a 7mm or 9/32" socket, remove each bolt securing each COP to the intake manifold on top of the engine. Remove all eight COPs, and the spark plugs are underneath. When replacing the spark plugs, use only the proper Ford/Motorcraft plugs, even if they cost twice as much as the aftermarket ones. You will avoid further headaches this way. Hope this helps.
Posted on Mar 30, 2010
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