Question about 1999 Jeep Grand Cherokee
Have replaced the blower motor and switch, have no ground anyone no where it is or what color
Had the same problem. You need to check your connection at the fan regulator. It is located high on the floor (firewall) on the passengers side inside the Jeep. Power and ground come in on bottom side, power to the fan out the top side. My connection failed where the incoming power plugs in to the regulator. Plug had gotten so hot it looked burned. I snipped off the faulty plug, bought some good female spade crimp connectors at Farm and Fleet to repace the plug, and no problems since.
Posted on Feb 08, 2009
Blower motor ground is generally to the body. Just attach a decent gauge wire (I use 12gaq or 14ga) to the body and using a loop end (crimp connector), remove one fastener from the blower housing, put screw through wire end and re-fasten. This will re-establish ground. Grounding is likely the least looked at part of the electrical system, but is extremely important for all electronics to operate properly. On every vehicle I own, I go further than I outlined, running a 10ga wire from the battery, attaching it to the near point on the fender, around to the firewall, through the firewall to the dash bracket inside the cabin and another branch to the opposite fender and radiator support. I also add a second ground to the battery, directly to the block in a different place than the standard ground, usually to one of the starter mount bolts. In doing this, I eliminate any possibility of ground loss to essential components.Your original ground wire should be black and likely was attached by a spade connector much as I outlined above.
Posted on Feb 06, 2009
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Posted on Jan 02, 2017
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