1988 cherokee still overheats after replacing most of the parts
#1
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Model: Cherokee
1988 cherokee still overheats after replacing most of the parts
1988 cherokee 325,000 miles,runs good. This is what I have done so far. Flushed system,changed theromostat,water pump,sensors,fan cluch,water bottle and cap and burped system and put a switch in for the electric fan. It still overheats. Could it be the type of oil. I started using VR1 50 weight racing oil.
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Year: 98
Model: Cherokee
Engine: 4L
ok im not sure but WHY in the heck are you using 50 wt race oil on an XJ??
Its NOT a race engine. dont get me wrong VR1 is really good oil, but 50 wt is what you would use in a top alcohol motor, or pro stock motor. race oil does NOT have the detergents needed to run this thing on a normal basis. come on now
Its NOT a race engine. dont get me wrong VR1 is really good oil, but 50 wt is what you would use in a top alcohol motor, or pro stock motor. race oil does NOT have the detergents needed to run this thing on a normal basis. come on now
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First of all I have no idea what an XJ is. Second I was using high milage 20/50 with Lucas oil treatment for years. A friend suggested I use VR1 50 weight because the engine had internal noise. Well after using it the engine is pretty quite. My question is ... Could that be the reason it runs hot?
#5
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just flushing your radiator wont get everything out, it could still be plugged.
usually you have to burp the cooling system more than once, the renix engine is notorious (sp) for trapping air in the engine and running hot. i put a thermostat housing on mine from a 93 and put a drain **** where the sensor would go, drill a hole in the top of the thermostat. its a whole lot easier to burp air out of the cooling system.
usually you have to burp the cooling system more than once, the renix engine is notorious (sp) for trapping air in the engine and running hot. i put a thermostat housing on mine from a 93 and put a drain **** where the sensor would go, drill a hole in the top of the thermostat. its a whole lot easier to burp air out of the cooling system.
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The only thing at this point to do is change oil back to 20/50 high milage. I live in Fla. so I'm not worryed about it being to thick. Thats the only thing that has changed in the past few months.
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