temperature gauge...
#1
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Join Date: Mar 2015
Location: Breinigsville, PA
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Year: 1996
Model: Cherokee
Engine: 4.0
temperature gauge...
Ok so today I finally wanted to tackle putting in a new temp sending unit after replacing it I hopped in and realized the needle is going up to 260 without the engine even running and when I did start it the just maxed out. with that being said I went to napa and bought another one and switched it this time the needle stayed where it should be but with my obd2 scanner and live data the scanner says the coolant temperature after a 10 minute drive is 201 degress and the gauge says it is around 220. so which do I belive and what do I do about it?
#2
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Location: Greenville, SC
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Year: 1999
Model: Cherokee(XJ)
Engine: 4.0
Two different temperature sensors in 2 different locations. Could be different temperatures because of where they are. One is on the back of the block (I'm pretty sure) and one is on the thermostat housing.
#4
CF Veteran
As stated, the rear sensor is for your temperature gauge. Also, and it's a common problem, non-OEM sensors run hot. The one i got from Napa rana good 30 degrees too hot, and I replaced it with a Mopar. It's closer to correct now.
#6
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Year: 1996
Model: Cherokee
Engine: 4.0
Yeah I'm going to order one from Mopar today then see what happens when it gets here thanks guys
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