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Unread 07-02-2009, 05:16 PM   #1
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1997 ZJ 
Join Date: May 2009
Location: Utah
Posts: 8
"Coolant Sensor is bad"

Okay, I get a message on the onboard computer that the "Coolant Sensor is Bad". I changed the coolant sensor located on top of the motor near the thermostat housing, still getting the code. Got any idea's?

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Unread 07-02-2009, 05:42 PM   #2
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Put electrical tape over the EVIC?
My Jeep is a chick magnet with reverse polarity.

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2000 WJ, 4.5l, AX15, 242 D60/14b, 5.5" lift front, 7.5" rear. Ford Expedition rear coils, Ram 350 shocks, JKS, IRO Long Arms, cool Badlands flag thingy.
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Unread 07-02-2009, 05:48 PM   #3
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It's the sensor in your radiator overflow. Just cut the wires and stick them together.
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Unread 07-02-2009, 06:01 PM   #4
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There's a thread or two on this, it's a common problem. If you changed your sensor and it's still a problem, you may have to repair your VIC.


I have the same problem, haven't dealt with it yet. Apparently though, simply connecting the wires together may not work, as the sensor should have 33k Ohms resistance in it. So, you could silence the offending alarm by putting a 33k Ohm resistor between the two wires.


Good luck!
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Unread 07-02-2009, 11:18 PM   #5
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very common problem, check out this writup with PLENTY of pictures...
'98 Grand Cherokee 5.9L V8
-Stock suspension, 235/75R15 BFG AT's, AR767 rims with 4" BS - Fastman 52mm Throttle Body, K&N FIPK Gen 2, Kolak Exhaust, DMH Cutout, DT Headers, M1 Intake - 8300k 9004 Hi/Low HID's, 8000k H3 Off-Road Lamps - Rockford Fosgate P8002 and P4004 amps, 2x 12" Kicker CVR subs, Kicker SS56.2 components in Q-Logic kickpods, Front and rear Punch components, another set of components in the sound bar, 3600 watts total
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