Any help would be great... -
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Unread 07-08-2011, 09:29 AM   #1
Registered User
2004 FSJ Cherokee 
Join Date: Jul 2011
Location: Johannesburg, Geauteng
Posts: 1
Any help would be great...

hI, i have a 2004 jeep cherokee sport, 3.7l motor, it was second hand and had a full service history, two days ago it broke down with an apparent torn radiator hose, and i pulled over about 500m after it first warned me the car had over heated. at first i fix the radiator and refilled it only to learn the motor is full of water which after trying a compression test and clearing out "most" of the water it seems the head gaskets are probibly gone, im new to this engine and just need some advice on what to look for as i proceed to strip the motor to the head gaskets... anything that usually goes wrong with this motor if its over heated and what my options are,
(all internal parts are covered in burnt oil. could this be as a result of the short drive while over heated? i can hardly imagine so?)
will i need to completely strip down and rebuild?
is this even an option?

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Unread 07-08-2011, 09:45 AM   #2
Registered User
1986 MJ Comanche 
Join Date: Feb 2005
Location: Wrightstown, New Jersey
Posts: 312
I'm guessing you have the Chinese model 2500 Cherokee if it's 2004, that's unless it's the Liberty (not sure if they exported the Liberty as the 2500 was made till 2006).

You might be better off asking a lot of these questions in the Liberty forum as they run the same 3.7L V6. If the engine was overheated till it hit red then you could have charred a little oil in there. A lot of that could be sludge though. When you have the heads off, check the piston walls for scoring and check the oil and coolant jackets for any sludge. If the engine isn't making any weird noises then you might have got off lucky but that could have taken some life off of your crankshaft and camshaft bearings.
[B]1986 Jeep Comanche 126000+ miles[/B]
Long Bed, Chevy 350 TPI (5.7L V8), AX15, NP231
Roll Bar, 15/38.5R16.5 Ground Hawgs, Bastard lift (Custom 3-link long arm system, 4.5" Rusty's front springs w/ 1.75" spacers and 6.5" RC shocks, SOA rear), Dana 60HP/Sterling 10.25, 4.10's, Recessed winch, more mods to come...

[B]1992 Jeep Comanche 174000+ miles[/B]
Short Bed, 4.0L I6 HO, AX15, NP231
In the process of doing a frame up restoration.

[B]1990 Jeep Cherokee XJ 207774 miles[/B]
4.0L I6, AW4, NP231. Tom Woods SYE and Drive Shaft, Rusty's 8.0" Long Arm Suspension Lift, 36/13.5R15 Super Swamper IROK's, Dana 30 Front, Tube Diff Guard, Dana 44 Rear, 4.56 gears, Ox Locker, disc brake conversion
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