Chris Hauk
New Member
Where about should I start chasing an non working engine temperature gauge. It was intermittent for a while before it stopped working. 2004 with a 5.4L
Chris
Chris
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Where about should I start chasing an non working engine temperature gauge. It was intermittent for a while before it stopped working. 2004 with a 5.4L
Chris
The easiest way to know your gauge is not the culprit, or the wire going to sensor, is to pull the wire off sensor, ground it for a second with key on. Gauge should swing all the way to hot if all is good. If it does, then replace sender. Same goes for gas gauge. Single wire switches are easy. It probably is sender unit, but as always take a minute and be sure.
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2004 Workshop Manual said:The PCM receives the engine coolant temperature status through hardwired circuitry to the engine coolant temperature (ECT) sensor. The instrument cluster receives the engine coolant temperature data from the PCM through the SCP communication network. The instrument cluster microprocessor monitors the engine coolant temperature data received from the PCM and commands the temperature gauge indication with a corresponding movement of the pointer.
I hadn't thought of that part, but your probably right. Question is would it do any damage my way?
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