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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

#153 of 729 Re: 2000 Grand Cherokee overheating [billnick] by juzjoshnu

Jul 11, 2007 (11:44 am)

Replying to: billnick (Jul 11, 2007 8:32 am)
Hey Bill. The thermostat I replaced was what Schucks auto supply recommended. It is a Stant 195 degree thermostat part number 36369. I say overheat but what I mean is it gets hot. It stays about 195 to 205 during normal driving, at a stop sign, slow traffic or just at an idol. It only gets hot when going up hill (up to about 220 - 225). As for the noise; I have owned a 2002 Jeep Liberty, 2002 Dodge Durango, 95 Dodge Ram, 97 Ford F-150, and of course the Jeep Grand Cherokee. I'm not sure about the liberty but I do remember the rest of them made the blowing noise when cold during the first few seconds of the first acceleration and then it went away; I figured its an SUV and Truck thing. My Grand Cherokee does it every time during all accelerations. It never used to make that noise all the time untill after it overheated. I didn't notice this untill the Jeep Dealership replaced the clutch to the fan. Do you think it could have something to do with that? And Do you know what the normal operating temprature should be?
 
Josh

#154 of 729 2002 Jeep Grand Cherokee overheating by shiloh33

Jul 12, 2007 (11:28 am)

I have replaced my fan relay yesterday for the second time in under one year. The fan worked yesterday when I drove the Jeep and then stopped and today does not come on. I was in a drive thru yesterday and the car was idling and the thermostat went all the way to 260+. I have no idea what now to replace or where to replace it. I have heard that the coolant fan fuse or circuit might be the problem but seem to be at my wits end. Any help will be greatly appreciated.

#155 of 729 Re: 2002 Jeep Grand Cherokee overheating [shiloh33] by billnick

Jul 12, 2007 (12:15 pm)

Replying to: shiloh33 (Jul 12, 2007 11:28 am)
I sure hope you got the 2nd one free, the after market relays are known to go bad sometimes that was the only reason I went and paid the shot for the jeep part, by any chance did you try and hot wire the fan to see if it will come on with constant power? You unplug the fan wiring beside the fan shroud and run a ground to the frame and a hot lead from the battery and see if the fan will come on and stay on. I have looked in the repair manual and it talks about a fuse but the only one I found was a breaker type in the power box under the hood, I'm not sure right now but I think it's right next to the abs fuse. I hope that helps you. Bill

#156 of 729 Re: 2000 Grand Cherokee overheating [billnick] by juzjoshnu

Jul 12, 2007 (1:20 pm)

Replying to: billnick (Jul 11, 2007 8:32 am)
In addition to the last message I posted I noticed today that when the ac is on the Jeep gets hot as well. It seems that any extra strain on the engine causes it to get hot. Any ideas?

#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

Messages Page 17 of 74

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