How long do 4.0s really last?
12-08-2011, 11:45 AM
#32
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Year: 1989
Model: Cherokee
Engine: 4.0
Originally Posted by A Black Cherokee
Do you know why it blew so early?
12-08-2011, 02:03 PM
#36
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Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
422,614 and climbing. had to replace the head once at @364,000. Had my thermostat go into lockdown my first winter in Missouri and I lost the #1.
1990 cherokee sport, 5spd, 4.0, bone stock
1990 cherokee sport, 5spd, 4.0, bone stock
12-08-2011, 07:55 PM
#37
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Originally Posted by highmileage
422,614 and climbing. had to replace the head once at @364,000. Had my thermostat go into lockdown my first winter in Missouri and I lost the #1.
1990 cherokee sport, 5spd, 4.0, bone stock
1990 cherokee sport, 5spd, 4.0, bone stock
12-08-2011, 08:08 PM
#38
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Year: 1996
Model: Cherokee
Engine: 4.0L High Output
Originally Posted by highmileage
422,614 and climbing. had to replace the head once at @364,000. Had my thermostat go into lockdown my first winter in Missouri and I lost the #1.
1990 cherokee sport, 5spd, 4.0, bone stock
1990 cherokee sport, 5spd, 4.0, bone stock
12-10-2011, 06:38 AM
#42
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Year: 1996
Model: Grand Cherokee
Engine: 4.0 Straight 6
Mine just hit 160,255 miles...all original engine and drivetrain......other than a slight knock at the front of the engine, it's still going pretty strong. It has all the prerequisite leaks and whatnot, but that's to be expected.
12-10-2011, 06:40 AM
#43
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Year: 1996
Model: Grand Cherokee
Engine: 4.0 Straight 6
12-10-2011, 06:47 AM
#45
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Year: 1999
Model: Cherokee
Engine: 4.0
I've got 151k on my 99 and it runs 100x better than my 91 did with 137k on it. I bought the 99 with 148k on it because she ran so good. Doesn't leak a drop of oil either.