Question about Jeep Grand Cherokee
Not an issue with the turn signals or heater, so it has to be the reverse light circuit somewhere. I have tried taking the bulbs out completely, and unplugging the reverse sensor from the tranny, and still blows fuse as soon as car is put into reverse. I have also taken the center console out and unplugged the connecter there, but still blowing fuses (even 30A's) Need some help as this is the girlfriend's car and we can't really afford to take it to a shop.
Posted by Anonymous on
# 20 fuse ? Which fuse box , underhood or inside passenger compartment ? Does the vehicle have heated seat ? Which engine , 4.0 l or 4.7 l ? Gas or diesel ? Does it have temperature valve actuator .
Posted on Jun 16, 2017
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Posted on Jan 02, 2017
You've probably solved your problem by now but if not, you really need to buy a cheap digital multimeter. It will help you in this kind of situation and others.
Connecting it between the output side of the fuse for that circuit and ground can let you start pulling connectors until the low resistance causing the blown fuses goes away.
Experience with this kind of troubleshooting helps so you may be a little uncertain at first.
They can be had at auto-parts stores, Radio Shack, or if you are lucky enough to have a Harbor Freight tool store near you, they often have the things for $3 and while not exactly precision instruments, they are adequate for most anything one can do at home.
Posted on Jul 21, 2008
SOURCE: alternator fuse blows
Kevin, chances are that when the new alternator was put on. The wires were put too close to something either hot or that it can rub on. If you do not find that this is the problem then return the alternator to the store and have it tested for internal problems. Bad Alternator can do this. Good luck
Posted on Jan 04, 2009
Your fan seems to be drawing way too much current, common with fan motors of all kinds when they are going bad. It will still blow, but hot wires and blown fuses in the normal circuit indicate you have an excessive load in the circuit. Fan motors create this condition regularly, but are often ignored since they are "still blowing."
Here's a cheap, easy way to test my theory:
Try a new fuse, the proper amperage, but leave the blower motor unplugged at the blower itself. That will tell you in a few rides if the blower was the culprit. (Which it most likely is.) I bet your #20 fuse will stop blowing and no more smoking pink wires! Hope this helps. Remember, blower motors are cheap, traffic tickets and dash fires are not. The blower motor draw is the logical thing wrong with this picture. Good LUCK! TT
Posted on Jan 28, 2009
It looks like the wire circuit for the wiper motor is touching the car body when shaken so the only thing you can do is shake the wires and terminals yourself while engine is running then maybe you can pinpoint where the earthing is.
Posted on May 08, 2009
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