Hi: The problem is caused by a bad blower speed resistor. It is mounted under the dash, passenger side near the blower motor, directly in the air box. It has an electrical connector on it, and the part is usually less than $25
SOURCE: can't locate the cooling fan sensor or relay.
the radiator fan relay is located behind and slightly lower than the r/f headlamp.best way to get to this is by removing right side of front fascia out enough to get behind it. this will give you acsess to the relay.i work at a jeep dealer and have done this many times.
I have the original owners manual, and it says that there is a fuse (No 16) and a relay (No 10) for the blower motor. I've same troubleshooting right now. If you wants send me a email to [email protected] to send you a scan imagen of the fuses diagrams.
SOURCE: 2000 Dodge Grand Caravan need to know where relay
the cooling fan relay is not in the fuse box.
it is a solid state relay bolted to the radiator core support just behind the bumper
SOURCE: 1999 dodge grand caravan 3.8l engine cooling fan won't turn on
dont think so,seem to remember a reostat somewhere at the bottom of the rad right hand side ,check for earth problems as well ,sorry if vague but i seem to be forgetting things as i get old .
SOURCE: Location of cabin air filter on 2005 saturn relay 2
behind the glove box, after taking out the glove box it has a cover marked"air filter access doo"r
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