Having problems with your 2000 Mercury Grand Marquis ?
On My 2002 Jeep Grand Cherokee Limited the heater motor goes on and off by itself. When you go under glove box and wiggle the resistor box and plug it works for a while and then quits again
You will need to replace the resistor module.You also need to check the connector real closely cause they get hot and melt the plastic.If you just replace the resistor you will have the same problem in a few months.So make sure and check it over good.Hope this helps.Good luck.
Repair Help & Product Troubleshooting for 2000 Mercury Grand Marquis
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