Question about 2008 Mercury Grand Marquis
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Posted on Jan 02, 2017
SOURCE: 2003 mercury grand marquis LS
The blend door is stuck in cold position. That usually happens because the blend door actuator has failed.
You will need to test and replace the blend door actuator.
To replace the actuator you will need to take apart the dash and remove completely the instrument panel,d isconnect the connector, remove the four screws, remove the temperature blend door actuator and replace it.
The replacement is not a job for beginners, since you have to take apart the dash to access the actuator.
Posted on Nov 18, 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
disconnect battery,,jack car up,,put jack stand on frame,,take starter bolts out,(may not be easy),,take wires off starter,,hoped it helped,,
Posted on May 08, 2010
SOURCE: How to reset Check Engine
You can remove the NEG battery terminal for 10 minutes and it will clear. Or go to Autozone or Oreillys for a free scan, find out why it came on, then have them clear it with their scanner.
Posted on Dec 02, 2010
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