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Do you have manual or automatic climate control ? If automatic could be a bad blower motor control module . Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.
Disconnect the negative battery cable. Remove the rear engine sight shield. Disconnect the positive booster cable from the multi-use relay center. Move the underhood fuse block out of the way. Disconnect the electrical connectors from the blower control module. Remove the blower control module from the blower module.
Blower Control Module
In the center rear of the engine compartment, below the right side MaxiFuse® block
or maybe a stuck
In the center rear of the engine compartment, below the right side MaxiFuse?® block
on the v6- 3.1 yes you do. here is how to change it yourself, first of all, release tension on the belt tensioner. remove belt from pulleys, place a floor jack under engine on motor mount side to take off. put a piece of wood on jack to protect engine. jackup to engine with very slight pressure to hold it while removing mount. take off mount, remove old belt, put new belt on. the tensioner can be moved with a 3/8 drive in tensioner hole. after belt is on replace mount. then lower jack down. thats it!!
If you have an owners manual look for the fuse for the blower. If the fuse is good then its 1 of 2 things. The blower motor or the climate control blower switch.
The Digital Climate controls use a switch controller which is under the hood and behind the engine. On my 2002 Mercury, the switch was behind the heater line from the intake manifold. The outside of the switch has 2 screws and 1 electric plug and is sticking out of the ductwork by the firewall. The part is about the size of a cigarette package with most of it hidden.
You may be able to get the 2 screws and electric harness off without removing the heater hose, but before I could get mine to clear the ductwork I had to pull off the heater hose from the manifold. You CAN check the new part as soon as you get the electric connector off the old part WITHOUT removing the old part, hose or screws. Just plug in the NEW and turn on the ignition with the blower ON and the fan should work.