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04 F150 5.4 temp gauge stuck above hot at all times

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  #1  
Old 09-25-2015, 10:15 AM
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cworthington
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04 F150 5.4 temp gauge stuck above hot at all times

As title says, the gauge is stuck above hot at all times. ie. truck off, accessory on, engine running, full operating temp.

I have a solus ultra scanner but i cant find cht or ect anywhere on it.
Is there a way to confirm that its the cluster or should i check something else first?
 
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Old 09-25-2015, 12:11 PM
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Use the HEC Dealer Test Mode (google it) to 1) Test the gauges mechanically and 2) See what the cluster is receiving from the PCM for a CHT value.
 
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Old 09-26-2015, 10:09 AM
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Gauge is bad. So im gonna send it out to get repaired. Thank you for the info.
 
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