I am having an issue with my 99 grand cherokee 4.0, fan will not shut off i have to pull the fuse, i have replaced the relay and that was not the issue, the temperature Gage on the dash is working so i am thinking its not the temp sending unit, could it be a computer problem or something else? any help would be appreciated.

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Asked by 99WJTEMPRAMENTAL Jan 31, 2018 at 08:57 PM about the 1999 Jeep Grand Cherokee Laredo

Question type: Maintenance & Repair

I am having an issue with my 99 grand cherokee 4.0, fan will not shut off i have
to pull the fuse, i have replaced the relay and that was not the issue, the
temperature Gage on the dash is working so i am thinking its not the temp
sending unit, could it be a computer problem or something else? any help
would be appreciated.

40,015

beatupchevy answered 6 years ago

corrosion near the computer or any other disconnects ? Mice ! ! ? the computer runs about everything , it's getting power and ground from somewhere ?? ? ?

Mark helpful

Joemiller841 answered 6 years ago

Did you recently have ac work done on it it could be over charged and that will keep your fan on

Mark helpful

Phisco65 answered 6 years ago

Bump Did you solve this? Have a 2001 WJ with the same issue.

Mark helpful

Your Answer:

I am having an issue with my 99 grand cherokee 4.0, fan will not shut off i have to pull the fuse, i have replaced the relay and that was not the issue, the temperature Gage on the dash is working so i am thinking its not the temp sending unit, could it be a computer problem or something else? any help would be appreciated. 3 Answers

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i have a 1999 grand cherokee i have replaced the rad . fan the temp sensor amd fan relay , the fan runs all the time and temp gage is at bottom has code po118 please help 3 Answers

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