There is no temp sender on this vehicle. Is the engine temp mechanical controlled thru the BCM or PCM? All other gauges work fine and there is no CEL on. It does have the temp sensor at the front of the left head. I know a BCM replacement requires work with a TECH II scanner and online with GM and about $800 at the dealer. Thank you for any input.
 
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Ask Your Question2003 GMC Yukon Denali
Question: Any common known problems for just the engine temp mechanical gauge not working
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