Having problems with your Mercury Grand Marquis ?

03 grand marquis blower motor does not come on. The fuses are good. What can I check?

Posted / edited by AnonymousUser on : 18-12-2017

Answers :

If you have a Digital climate control there is a blower control switch under the hood. This switch is behind the engine on the firewall and has 2 screws mounting it and 1 electric connector.
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\015\012The majority of the part is hidden inside the ductwork and you may have to remove a heater hose on the engine to get the part off. However, once you unplug the part, you can connect the wire lead to the new part and instantly know if it has fixed it. Then proceed to change out the replacement. Usually there are good Salvage parts. Mine cost $20 used, but expect to pay more.
Repair Help & Product Troubleshooting for Mercury Grand Marquis

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