What to do if you blow a fuse on a Mercury Grand Marquis?
Check the appropriate fuses before replacing any electrical components. A blown fuse can be identified by a break in the wire within the fuse. Before replacing a fuse check that the key has been removed from the ignition and that all the services are switched off and/or disengaged. Always disconnect the battery before servicing high current fuses.
When did the Mercury Grand Marquis come out?
In this article, we consider the fourth-generation Mercury Grand Marquis, produced from 2003 to 2011.
What’s the best way to remove an ignition switch?
Remove them carefully by either popping them off of their plastic clips or removing the screws and bolts that hold those pieces in place. Refer to a vehicle specific repair manual for guidance on how best to gain access to the ignition switch. Set all trim pieces aside somewhere safe where they won’t get stepped on or damaged. Helpful?
What to do if your key is stuck in the ignition switch?
The key may be stuck in the ignition switch, but that shouldn’t stop you from turning it. If you don’t have a key, you will need to force the module to turn using a flathead screwdriver. Press the release pin inside the hole on the ignition module with a screwdriver.
What should I do if I need to replace my ignition switch?
Reconnect the cable to the negative (-) terminal on the battery, then insert the key into the ignition and turn it to start the vehicle. The vehicle should start without any issue. If it doesn’t, remove the ignition switch and reinstall it. Shut the engine off (if it starts) and disconnect the battery again.
The key may be stuck in the ignition switch, but that shouldn’t stop you from turning it. If you don’t have a key, you will need to force the module to turn using a flathead screwdriver. Press the release pin inside the hole on the ignition module with a screwdriver.
What’s the Accessory position on an ignition switch?
Insert the key and turn it to the “accessory” position. The ignition switch needs to be set to the accessory position before you can release it from the ignition module. The “accessory” position is before the starter is engaged, and would normally let you run the vehicle’s electronics without the engine running (when the battery is connected).
How do you remove a battery from an ignition switch?
Use an appropriate sized wrench to loosen the nut holding the cable on the negative (-) terminal and then slide it off the post. You don’t need to remove the positive cable from its terminal. Tuck the negative cable to the side of the battery to make sure it doesn’t accidentally come into contact with the terminals.