So title says it all. I searched on here and found a write up on how to clean up the circuit board (clock works now) but temp gauge not working. My question is Im pretty sure it worked before I nuttered could that have some thing to do with it? Also is there a way to test if the gauge itself is working? Any help would be appreciated. Thanks
Easy way to test. If you have a voltmeter or any device where you can ground the wire to the block the gauge should go to 100% (fully right if sitting in the driver seat). My temp gauge too has gone out on me, just havent had the time to diagnose.
This is the temp sensor. Remove the connector and see if the guage deflects. Short the wire to ground and it should go to 0. If it does then you need to replace the sensor. If it doesnt then post back.
I have an 89 YJ and same issue that temp gauge does not work. Replaced the temp sending unit, check good continuity on wire from sending unit to cluster, grounded the wire to the - terminal on battery but gauge still does not read above "0". Flushed coolant and did pressure check, all was good. Any ideas?
Mine works kind of. I checked the connection on the back of the head but it did not change. I checked the engine temp were the coolant hose attaches to the head with a infrared thermometer and it said it was at 200 degrees while the gauge read what is pictured.
I'm growing rather fond of driving a vehicle with the aerodynamic qualities of a brick.
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