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XJ Ask the Question Thread
CF Veteran
Joined: Dec 2010
Posts: 1,246
Likes: 1
From: Missouri
Year: 1998
Model: Cherokee
Engine: I6 4.0 L
Originally Posted by ivantheigor
This is a stupid question... how do you install shocks?
When they look like this..
When they look like this..
Senior Member
Joined: Mar 2010
Posts: 660
Likes: 0
From: Hampton, Virginia
Model: Cherokee
Engine: none other
i would just do the thermostate first. cheaper and easier but thats just me. or if you want to know for sure take the thermo out and test it at home before you go and get one. thats what i would do.
Senior Member
Joined: Mar 2010
Posts: 660
Likes: 0
From: Hampton, Virginia
Model: Cherokee
Engine: none other
CF ADMIN

Joined: Sep 2010
Posts: 34,088
Likes: 257
From: Lantana, Fl
Year: 1996
Model: Cherokee (XJ)
Engine: 4.Slow
Originally Posted by randtek
1998 Jeep Grand Cherokee, radiator failed, vehicle overheated. Replaced radiator, engine still overheats, Heater gets NO heat whatsoever. Thermostat or water pump? Any hints?
CF Veteran
Joined: Dec 2010
Posts: 6,880
Likes: 0
From: Frederick, Maryland
Year: 1996
Model: Cherokee
Engine: 4.0 I-6 High output
Also run your engine let it get to normal operating temperature, take a rolled up magazine or newspaper and try to stop the radiator fan. If you can slow it down or stop it I would replace your fan clutch. I replaced mine for about 40 bucks and it was only four bolts. If your in there you might wanna replace it anyway.
CF Veteran
Joined: Dec 2010
Posts: 6,880
Likes: 0
From: Frederick, Maryland
Year: 1996
Model: Cherokee
Engine: 4.0 I-6 High output
Senior Member
Joined: Mar 2010
Posts: 660
Likes: 0
From: Hampton, Virginia
Model: Cherokee
Engine: none other
Also run your engine let it get to normal operating temperature, take a rolled up magazine or newspaper and try to stop the radiator fan. If you can slow it down or stop it I would replace your fan clutch. I replaced mine for about 40 bucks and it was only four bolts. If your in there you might wanna replace it anyway.
wow never heard of doing this. seems like a fun test
also is your fan shroud in good condition ie not broken. believe it not that thing helps a ton with cooling.
Member
Joined: Jul 2010
Posts: 103
Likes: 0
From: Georgia
Year: 1988
Model: Cherokee
Engine: 4.0L HO from a 91 Comanche.
I have a really frustrating problem, and would appreciate any ideas at all.
The situation: A '88 Laredo was driven(running perfectly) into a garage, the motor, sourced from a '91 Comanche sometime last year-
(and rebuilt before installed, but I misplaced the thrust bearing, hence the re-rebuild), -was removed from said XJ Laredo, taken down, bored .030" over, crank ground, valves ground and head resurfaced, comp cam installed with timing from previous rebuild used, all put back together, timing was double-triple-quadruple checked for correctness.
NO fire to coil wire, NO gasoline on spark plugs, nothing whatsoever happening, resistance on my ohm for the cps is -8.8 or so, nothing seems to be amiss at all, the pump comes on when the key is turned as per default, I am clueless, what is the problem? Any ideas at all?
I really don't know of anything else to check, most everything has been replaced at least once in the last year, the computer ground was redone by a shop after a similar incident, and it has given me NO starting problems since. I cannot find any scraped wires or any loose connections.
The situation: A '88 Laredo was driven(running perfectly) into a garage, the motor, sourced from a '91 Comanche sometime last year-
(and rebuilt before installed, but I misplaced the thrust bearing, hence the re-rebuild), -was removed from said XJ Laredo, taken down, bored .030" over, crank ground, valves ground and head resurfaced, comp cam installed with timing from previous rebuild used, all put back together, timing was double-triple-quadruple checked for correctness.
NO fire to coil wire, NO gasoline on spark plugs, nothing whatsoever happening, resistance on my ohm for the cps is -8.8 or so, nothing seems to be amiss at all, the pump comes on when the key is turned as per default, I am clueless, what is the problem? Any ideas at all?
I really don't know of anything else to check, most everything has been replaced at least once in the last year, the computer ground was redone by a shop after a similar incident, and it has given me NO starting problems since. I cannot find any scraped wires or any loose connections.
CF Veteran
Joined: Dec 2010
Posts: 6,880
Likes: 0
From: Frederick, Maryland
Year: 1996
Model: Cherokee
Engine: 4.0 I-6 High output
It proves your fan clutch is not heating up, hence pushing hard enough up against the fan and making it spin at the correct speed and moving enough air.simple test, important results.
Senior Member
Joined: Mar 2010
Posts: 660
Likes: 0
From: Hampton, Virginia
Model: Cherokee
Engine: none other
oh i wasnt disagreeing just never heard of this method of testing the fan clutch or any method really come to think of it. makes perfect sense and something to add to the ol' knowledge bank thanks. like you said important results.
CF Veteran
Joined: Sep 2010
Posts: 12,692
Likes: 6
From: Mercer County, NJ
Year: 2001
Model: Cherokee
Engine: 4.0L I6 HO
So if anyone has the grommet that goes from the MAP sensor to the throttle body and they wanna donate it to me that'll be awesome, just saying. Lol




