Question about 1997 Jeep Grand Cherokee
Unbelievably and needlesly complicated. example of chrysler over engineering cheep design--- literally have to take the ENTIRE dash assembly apart. utterly ridiculous-- i would not advise unless you have experience or lots of apptitude to learn- about as bad as it gets-- lots of easily breakable **** parts- be careful
Posted on Aug 30, 2010
Its a tough job. You have to remove the dash panel, including the steering wheel and steering column and then remove the plenum box which involve evacuating the refrigerant system and draining the radiator. Once you get the heater box out, replacing the heater core will take about 10min and then you have to put it all back together and recharge the A/C and fill the radiator.
Changing the heater core requires complete removal of the dash panel and plenum box. To do this you have to remove the steering wheel, steering column, evacuate and recharge the refrigerant system and drain the radiator. I would only consider changing the heater core if it is physically leaking into the passenger compartment. If the problem is heat transfer to the A/C system only, the problem is more likely with the blend doors.
If you are seeing leak problems with the system, you will have to go through this process. If the problem is lack of heat and/or A/C control, the problem is more likely the blend door. This is a common fail on the Cherokee.
Remove the heater core box from the Jeep:
Posted on Aug 24, 2010
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Posted on Jan 02, 2017
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