Question about 1996 Jeep Grand Cherokee
We had problems with our '96 Grand Cherokee A/C as well. Check the fan speed resistors, there is a set of wires from the fan motor that plugs into the firewall, there should be 2 screws that hold this module in the fire wall. Once you've pulled these screws the module should come right out. You should find 2-4 coils of wire, these are high wattage resistors. You can test these with an Ohm meter or a continuity checker will let you check to see if there burned out. If you don't have continuity change these. You can get them at any auto parts store.
If you've had a wet floor on the passenger side after running the A/C this is probably the problem. Leaf and seed debris gets down into the vents, the fan chops it up and it ends up settling down at the drain and plugging it. The manual says you have to tear the whole system apart, this is not necessarily true. You can get a repair kit from your dealer that may fix the problem. The kit comes with basic instructions but you'll need to pull the carpet part way back to do this. You'll need a small parts grabber to pull the debris out of the system.
I can't be sure but your second problem may not be the sensor. Here's a few possibilities;
Check for damage or oil soaked plugs or wires.
It could also be a bad or missing thermostat, this could cause the computer to think the sensor is bad since it doesn't reach temp.
It's possible that you got a bad second sensor or if you had a shop do it, they may not have actually changed the sensor.
If you have a damaged or partially plugged radiator this could also cause your problem.
Given that you're showing more than one unsolved problems, it may be the computer itself or a bad dash circuit board.
I hope this helped, good luck.
Posted on Jun 06, 2010
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Posted on Jan 02, 2017
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