4.0 dead?
#1
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Year: 1996
Model: Cherokee
Engine: 4.0 HO
4.0 dead?
I recently purchased a 96 Cherokee with the HO 4.0 and 202k on the odometer. Ran rough and after a compression check cylinder 3 and 5 were down to 50psi. (code p0300, p0303, and P0305 also showed) The previous owner said she had ran it hot.
I had the chance to pull the head this weekend and wanted to share the sad story with pictures. (After I figure out how)
First up may be the culprit. Two leaking freeze plugs behind the exhaust manifiold.
Next is clogged water passages from copper snake oils
Next is Blown head gasket from Cylinder 3 to 5
Last the cracked #4 Cylinder wall
The leeking freeze plugs behind the exhaust manifold I believe started the downhill plunge because they possibly never "dripped" water
I had the chance to pull the head this weekend and wanted to share the sad story with pictures. (After I figure out how)
First up may be the culprit. Two leaking freeze plugs behind the exhaust manifiold.
Next is clogged water passages from copper snake oils
Next is Blown head gasket from Cylinder 3 to 5
Last the cracked #4 Cylinder wall
The leeking freeze plugs behind the exhaust manifold I believe started the downhill plunge because they possibly never "dripped" water
#2
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Join Date: Oct 2012
Location: Long Island, New York
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Year: 1996
Model: Cherokee
Engine: 4.0L I6 (The best engine ever made)
I recently purchased a 96 Cherokee with the HO 4.0 and 202k on the odometer. Ran rough and after a compression check cylinder 3 and 5 were down to 50psi. (code p0300, p0303, and P0305 also showed) The previous owner said she had ran it hot.
I had the chance to pull the head this weekend and wanted to share the sad story with pictures. (After I figure out how)
First up may be the culprit. Two leaking freeze plugs behind the exhaust manifiold.
Next is clogged water passages from copper snake oils
Next is Blown head gasket from Cylinder 3 to 5
Last the cracked #4 Cylinder wall
The leeking freeze plugs behind the exhaust manifold I believe started the downhill plunge because they possibly never "dripped" water
I had the chance to pull the head this weekend and wanted to share the sad story with pictures. (After I figure out how)
First up may be the culprit. Two leaking freeze plugs behind the exhaust manifiold.
Next is clogged water passages from copper snake oils
Next is Blown head gasket from Cylinder 3 to 5
Last the cracked #4 Cylinder wall
The leeking freeze plugs behind the exhaust manifold I believe started the downhill plunge because they possibly never "dripped" water
4LHO FOREVER!!!!!!!
#3
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Join Date: Oct 2012
Location: Long Island, New York
Posts: 486
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Year: 1996
Model: Cherokee
Engine: 4.0L I6 (The best engine ever made)
I recently purchased a 96 Cherokee with the HO 4.0 and 202k on the odometer. Ran rough and after a compression check cylinder 3 and 5 were down to 50psi. (code p0300, p0303, and P0305 also showed) The previous owner said she had ran it hot.
I had the chance to pull the head this weekend and wanted to share the sad story with pictures. (After I figure out how)
First up may be the culprit. Two leaking freeze plugs behind the exhaust manifiold.
Next is clogged water passages from copper snake oils
Next is Blown head gasket from Cylinder 3 to 5
Last the cracked #4 Cylinder wall
The leeking freeze plugs behind the exhaust manifold I believe started the downhill plunge because they possibly never "dripped" water
I had the chance to pull the head this weekend and wanted to share the sad story with pictures. (After I figure out how)
First up may be the culprit. Two leaking freeze plugs behind the exhaust manifiold.
Next is clogged water passages from copper snake oils
Next is Blown head gasket from Cylinder 3 to 5
Last the cracked #4 Cylinder wall
The leeking freeze plugs behind the exhaust manifold I believe started the downhill plunge because they possibly never "dripped" water
4LHO FOREVER!!!!!!!
#6
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Join Date: Oct 2011
Location: Bakersfield CA
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Last time I saw a crack like that was on a 403 Pontiac, a long time ago. The head still looks good though(maybe?), that'll save you about 2 to 400 dollars if it is good still.
#7
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Location: Long Island, New York
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Year: 1996
Model: Cherokee
Engine: 4.0L I6 (The best engine ever made)
I'd say it's shot with that crack, I'm sad to say that because these great engines aren't made anymore, and if people don't take care of them, we won't have any left.
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#9
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Year: 1996
Model: Cherokee
Engine: 4.0L I6 (The best engine ever made)
I just love them so much! Xj's are very common on Long Island in New York, but those ugly jk's are starting to become more common, but the xj's are still here, the jk's aren't replacing xj's at all! But jeeps are becoming more popular in general, I'm starting to see a lot more modified xj's though. But Long Island is flat, so the beach is all we've got.
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