Temperature Gauge Issue
#1
Temperature Gauge Issue
Having a temperature gauge issue on my 97 XJR. Gauge operates properly for a while and then will shoot up and peg at hot. Will fluctuate a little sometimes but pretty much stays pegged once it goes there. The funny thing is I use an Ultra Gauge to monitor temp and the operating temp is always fine. Leads me to believe I may have a grounding issue with the jaguar dash gauge but where? I am perplexed that the Ultra Gauge reads normal operating temps while the gauge on my dash is going from normal to pegged hot. No check engine lights going on either. Your thoughts? Thanks
#2
Having a temperature gauge issue on my 97 XJR. Gauge operates properly for a while and then will shoot up and peg at hot. Will fluctuate a little sometimes but pretty much stays pegged once it goes there. The funny thing is I use an Ultra Gauge to monitor temp and the operating temp is always fine. Leads me to believe I may have a grounding issue with the jaguar dash gauge but where? I am perplexed that the Ultra Gauge reads normal operating temps while the gauge on my dash is going from normal to pegged hot. No check engine lights going on either. Your thoughts? Thanks
#3
If the sensor were shorting internally, the Ultragauge would exhibit the same fluctuation. You may have a pin not making a good contact or, as you mentioned, a ground problem. Disconnect the neg. battery cable, then clean the ECM and inst. panel connectors with electrical contact cleaner.
#5
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