Ridal Posted December 13, 2012 Share Posted December 13, 2012 I replaced the heater core, removing the dash, and have since not been able to get the fuel and coolant temp gauges working. The coolant temp needle will flick to off the scale hot after a couple of seconds of power and will flick back to the 'off' position when the sender is disconnected. The fuel gauge constantly reads empty despite having a full tank. Does anyone know a possible cause or what things I should be checking? Thanks, James. Quote Link to comment Share on other sites More sharing options...
bubblegoose Posted December 13, 2012 Share Posted December 13, 2012 left an earth cable off? Quote Link to comment Share on other sites More sharing options...
Ridal Posted December 13, 2012 Author Share Posted December 13, 2012 Quite possibly. There is what looks like an earth cable in the cabin that isn't attached but it doesn't change either gauge when I earth it out. Perhaps there are others I've missed. Quote Link to comment Share on other sites More sharing options...
4AG_Addict Posted December 13, 2012 Share Posted December 13, 2012 Have a good look at the copper tracks on the back of the gauge cluster, over time they start to crack & break at any point they are bent or folded, especially around the socket for the wiring harness. Quote Link to comment Share on other sites More sharing options...
Ridal Posted December 14, 2012 Author Share Posted December 14, 2012 So I removed the cluster and found that if either one of the two plugs are plugged in, the water temp gauge will not move from power off position but when the second plug is in it will flick to the end of it's range in the hot direction. This happen regardless of which plug is plugged in first. What does this mean? I struggle with electrics so any suggestions are welcomed. Quote Link to comment Share on other sites More sharing options...
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