Question about 2002 Jeep Grand Cherokee
While replacing bad pins on my ecu connector two shorted, now jeep will not work. I was an Elecronics Tech, then Electrical Engineer so I am willing to do some work. but need help.
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Posted on Jan 02, 2017
try the water pump - first - make sure the radiator is really full - take the cap off cold and fill - if it looks full - start and run 8 minutes or so - then fill it up - look at ur fan belt - is it tight - tight is about how much pressure u use to make a firm hand shake with little movement - any movement over about an inch is loose - when the jeep warms up the belt can slip and not even make a noise - - new materials don't always squeal. - then be sure ur water pump is ok - they go slowing - the fins wear down - one more thing is the radiator - u don't say how many miles or what maintenance schedules you have or not so that's it for now
Posted on Dec 26, 2009
There is a resistor mounted by the fan,
this could have burned out. Look on passenger side right by fan motor should be 2
screews that have 5-6 wires pluged into it had to replace mine once fan
only on high worth looking in too. Also, check if the blower motor Resistor
Harness was faulty.
Posted on May 21, 2010
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