Need locations of all the themperature sensors on my 1996 Jeep Grand Cherokee Limited Edition 5.2 Liter, the dash says the Colant Sensor Is Bad, thought about punishing it :-), been doing this for about 3 years, does not seem to effect the way the Jeep runs.

I would make sure the core is the problem. You may have a heater control valve that cuts off flow to the core by vac. or a blend door that cuts off air flow thru the core.
You will need a shop manual to replace the core. The dash and console have to come out, along with discharging the ac.

Usually a bad crank sensor or a bad ecu computer.

Fuel, fire and exhaust. Pull a plugwire and check for spark. If it is firing check fuel system for pressure.

If I dont make a mistake, you have two O2 (before / after catalytic converter) both of 4 wire, in the exhaust system.

Review the Jeep ZJ Service Manual
- ZJ-Secc-14-Fuel-System (page 22, fig. 8)
- ZJ-Secc-25-Emission-Control-Systems

Hope helped with this (remember rated this help) Good luck.

auto zone .com

1st I need to know what engine you have, 4.0L or 5.2L V8.

This trouble is common in this models, I have one '93 ZJ and my signal Sensor Coolant Level also is ON for long time; first, try to clean the plug and reset the ECU. If the signal show again, maybe you need replace this sensor.

For more details about location and diagnotics, check this documents:
ZJ-Secc-8D-Ignition-Systems
- Page 5 Location (Coolant Temperature Sensor)
- Page 11 Diagnostics/Service Procedures
- Page 24 Removal Components

ZJ-Secc-7-Cooling-System
- Page 23 Coolant Reserve Tank (Coolant Sensor Level)

I hope help you with this (remember rated this help) Good luck.

there are loose wires in the dash that could be touching are burnt out.need re wiring

that sensor is part of the lift gate latch ...the whole assembly will need to be replaced

Could have a bad map sensor. The Map sensor is located on the throttle body. I have seen countless Jepp that start blowing black smoke when they go bad. That would be a good starting place.