CJ7 Temp and Fuel sensor Problems
Ok, So I've only had this CJ7 for a month, when I got it there was no floor pan in the rear, so I had a clear shot at the gas tank. The fuel tank sender was hooked up correctly and apparently working correctly also. So I decided to install a new speedometer cluster with fuel and temp gagues. Once I had it in it seemed fine for two weeks. Then, and I'm not sure if they're related or not, I flushed and refilled the coolant and changed the thermostat, in that I had to disconnect the sensor for the coolant temp while changing the thermostat. I hooked it all back up and everything was working right. Then a day later I went to move the CJ from one side of the parking lot to the other and now both the Fuel and Temp sensors are reading at maximum. I climbed up under the dash, everything is connected, as well as the temp sensor on the engine. I noticed the hold down nut on the fuel gague (the jumped grounding nut) was loose, i tightened it and the gague went to zero. So the problem is that its either reading full or at zero on both gagues even when the engine is cool and I know theres 3/8 a tank of gas. Since these are new gagues I doubt its them, also they worked yesterday Is this a grounding issue? I'm new to jeeps so any help would be great.
Last edited by DOWNING91; 08-29-2011 at 07:12 PM.
Grounding is a big issue. IF you loose your ground ou can burn out your gauges or sensors. Look in my sig to learn how to test them.
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