Question about 1999 Jeep Cherokee
If its warmed up it runs OK? The coolant temperture senser may be lying and saying the motor is warm when it's not. If the check engine light is on it may be indicating that or some other equally damaging problem. Most auto parts stores will connect to your Jeep and tell you what the codes are for no charge. Some stores may even reset the light for you. The coolant senser can lye and not turn the light on. A true scanner( not a code reader. can tell the values of the sensers as the Jeep runs. f the car is cold and the scanner says it's 180 degrees coolant you have found the problem. A wrong senser that has turned the cheak engine light on can have the computer sub a good value for a warmed up car so the car will still run, but not nessaryly the best till the check engine light is investagated and repairs are made
Posted on May 13, 2010
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Posted on Jan 02, 2017
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