is underheating really a problem?
#1
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Location: Glen Burnie Maryland
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Year: 1987
Model: Cherokee
Engine: 4.0 6l
is underheating really a problem?
i run at about 100(start up) to 160(open high way) never really any hotter, should this worrie me?
#2
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Location: Flint/Asheville
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Year: 1995
Model: Cherokee
Engine: 4.0 HO
Motor's run the best at their operating temps because they are designed with thermal expansion in mind, too cold will have undesired effects like premature wear.
#6
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Location: ogden, utah
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Year: 2000
Model: Cherokee
Engine: l6
do you have a "fail safe" thermostat?? on this same note, seein mine is the same temps.. i want to know what the deal is. its only a month old. i should have left the old one in. but i changed the gasket and figured it put a new thermo in too. Opinions??
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#8
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Year: 1989
Model: Cherokee
Engine: 4.0L Rebuilt Renix "Low Output" haha
It's a possibility your thermostat is stuck open, however if it's possible to get your hands on a laser temperature gun, verify the temp reading on the thermostat housing. Our Cherokee gauges, especially on our older renix jeeps are notorious for being inaccurate.
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