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Jeep Cherokee Grand Cherokee Engine and Performance Problems

729 messages,  Last post on Mar 20, 2013 at 10:59 AM

You are in the Jeep Cherokee and Jeep Grand Cherokee Forum.

What is this discussion about? Jeep Grand Cherokee, Jeep Grand Cherokee SRT-8, Jeep Cherokee, Engine, SUV

Messages Page 17 of 74

#157 of 729 Re: 2002 Jeep Grand Cherokee overheating [shiloh33] by afft

Jul 15, 2007 (7:25 pm)

Replying to: shiloh33 (Jul 12, 2007 11:28 am)
Hi If its working at all then i recommend you to go to a local workshop and show it. dont wait wasting time replacing the parts which have never gone bad. i had the same issue.It use to heat up wn the car was idling on lights....i plannned to replaced the fan relay..but thing went wrong brfore that and my nightmare came true...the headgasket was gone...which costed me around 600(labor+parts)...there are lot of parts in cooling system which could have issue and you will find number of resolution on net with different solution which finallly confuses you more.. ..m reallly sorry if i have confused you...

#158 of 729 Re: 2002 Jeep Grand Cherokee overheating [afft] by shiloh33

Jul 17, 2007 (12:14 pm)

Replying to: afft (Jul 15, 2007 7:25 pm)
Thanks to all who have responded to my post. I have hot wired the fan to the battery and it does not come on. So I will be taking it in to my mechanic tomorrow to diagnose my problem. Thanks again.

#159 of 729 1999 Jeep Grand Cherokee overheating by almgjk

Aug 11, 2007 (8:12 pm)

i had the same problem, its the engine control computer. The ground feed to the fan control module is lost from the ecm when the a/c system is run for the about 30 minutes.
$1000 plus diagnostic $180

#160 of 729 same ole, same ole by karpcatchr

Aug 14, 2007 (12:58 pm)

1993 Jeep cherokee overheating. Changed water pump, and fan clutch, did pressure check on ststem, put on a new head gasket. Still overheated, took out the thermostat, put it back together without one, changed the antifreeze solution to the water wetter and water. Still overheats. Will run at about 230 at 45 MPH, but turn on the air or go faster, temp climbs. Electric fan is running. HELP!!!!!!

#161 of 729 Re: same ole, same ole [karpcatchr] by tuggajb

Aug 14, 2007 (5:14 pm)

Replying to: karpcatchr (Aug 14, 2007 12:58 pm)
rad proble is cause part pluged

#162 of 729 Re: same ole, same ole [tuggajb] by karpcatchr

Aug 14, 2007 (6:55 pm)

Replying to: tuggajb (Aug 14, 2007 5:14 pm)
thanks, i flushed it with the hose, guess I need to get it power flushed

#163 of 729 1995 Jeep Cherokee Overheat by xu_z

Sep 07, 2007 (1:51 pm)

I have 1995 Jeep Cherokee, 4.0 L. I drove about 2 miles, the temperature gauge was going to red section. I must stopped to drive the jeep. I changed the thermostat, but the overheat problem still was not solved.
 
Please give me an advice.

#164 of 729 Re: same ole, same ole [tuggajb] by jeep69

Sep 15, 2007 (5:36 pm)

Replying to: tuggajb (Aug 14, 2007 5:14 pm)
I also have a 1993 cherokee with a heating problem I have replaced the engine, water pump, theromstat, viscous fan, radiator and all of the hoses I also replaced the fan temp switch located in the theromostat housing and the sender for the gauge it is running around 210 all the time I installed a 160 deg. thermostat no change I blew out the raditator and flushed the cooling system I thought it might have an air lock so I pulled an 8lb vacum on it for about 5 minutes with no change any ideas

#165 of 729 Re: same ole, same ole [jeep69] by karpcatchr

Sep 15, 2007 (7:16 pm)

Replying to: jeep69 (Sep 15, 2007 5:36 pm)
I finally solved mine by replacing the radiator. I found a guy with a laser thermometer who checked the radiator temperature, almost 50 degrees difference from the top and the bottom. Since the radiator was about 130 bucks at advance auto, he suggested that I just put in a new one rather than sending it to a shop to get it cleaned out. That did the trick, stays below 200 now, even with the air running.

#166 of 729 Re: same ole, same ole [karpcatchr] by karpcatchr

Sep 16, 2007 (6:27 am)

Replying to: karpcatchr (Sep 15, 2007 7:16 pm)
I also neglected to add that I cleaned my A/C condenser. Upon close nspection, the fins were not bent, but the spaces between them were partially filled with sand particles and paint that had peeled from the condenser over time, not letting good air flow through to the radiator.

Messages Page 17 of 74

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