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overcooling

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Old 10-14-2010, 06:01 PM
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my jeep runs too cool when driving and its killing my gas mileage any ideas I just flushed out the engine radiator and heater core and did the thermostat but once im moving it doesnt get above 160 and if it does its very briefly
Old 10-14-2010, 06:02 PM
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put in higher thermostat
Old 10-14-2010, 06:03 PM
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im havving the same problem in my grand. but i already replaced the thermostat and it didnt change anything
Old 10-14-2010, 06:06 PM
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whats th air tem were your at
Old 10-14-2010, 06:08 PM
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its been 65-90 here and even in traffic it never goes over 150-160. my next step was to replace the coolant temp sensor. and my heat blows hot
Old 10-14-2010, 06:15 PM
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I have the 190 in it and its like 50 outside what do I do use the cardboard infront of the radiator?also can I put in plugs with a higher heat range
Old 10-14-2010, 06:17 PM
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higher temp plugs will toast you engine the card board might help like the tractor trailers do you no
Old 10-14-2010, 06:19 PM
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ill try that should i put it inbetween the cooler and radiator since i dont wanna block off cooling from both
Old 10-14-2010, 06:22 PM
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Originally Posted by x91j
its been 65-90 here and even in traffic it never goes over 150-160. my next step was to replace the coolant temp sensor. and my heat blows hot
you mean the temp sending unit to see if maybe you gauge is not correct
Old 10-14-2010, 06:24 PM
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could it be a bad thermostat even tho i just replaced it?
Old 10-14-2010, 06:27 PM
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Originally Posted by x91j
could it be a bad thermostat even tho i just replaced it?
no yo got water movung bad thermo will make it boil over
Old 10-14-2010, 06:30 PM
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not if its stuck open
Old 10-14-2010, 06:32 PM
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Originally Posted by g19n87r
ill try that should i put it inbetween the cooler and radiator since i dont wanna block off cooling from both
try the card board but maybe use black duct tape to the grill line nascar doeslike one long pc going from side to side like half the grill you no this is strange eall other temp probs are over heating
Old 10-14-2010, 06:34 PM
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Originally Posted by x91j
could it be a bad thermostat even tho i just replaced it?
Read your signature. Sorry, I just couldn't resist.....my bad.
Old 10-14-2010, 06:35 PM
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ya mine wont reach operating temp


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