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Wiring problem. You also may have a car that shares fuses with other parts, that blow the fuse when you turn the part on. IE: Dodge vans have a problem that when you turn on the rear wiper you blow the fuse that also is connected to the air bag warning light. The air bag light goes off when a new fuse is installed. Check the web for blogs on your type of vehicle and then search for that area of concern.
Wiki User
∙ 16y ago
Wiki User
∙ 12y agoThe GC has a fairly common problem with the wiring connector melting.
Blend door failure is also a common problem with Jeep Grand Cherokees, from 1998-2004 in particular. While the dealership claims that the only way to solve this is to remove the dash and replace the plenum box, there are DIY kits available out there.
Wiki User
∙ 12y agoYour blower motor could be bad or it could be covered in so much dust that the motor is straining to turn the fan (picture a ceiling fan with the blades covered in dust on the air cut Sid which affects the ability of the fan to blow air and makes the motor work harder.)
If the fuse blows immediately upon turning your fan on, there may be a short circuit in one of the wires to the blower motor or blower motor resistor (which controls the speed of the blower motor or you could be using a fuse with too little amperage.
Consult your owners manual or the diagram in the fuse panel/box cover for the correct amperage for each fuse.
If the fuse's amps are too small it will blow fast because it can't handle the amps going through it.
If the fuse's amps are too high, the fuse won't blow when it's supposed to so it will cause damage in your electrical system.
Fuses are meant to blow when something goes wrong in your electrical system to keep the rest of the system safe until you solve the reason why the fuse blew.
Hope that helps!
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