Car Questions
RepairPal is your advocate for car care advice and guidance

Any common known problems for just the engine temp mechanical gauge not working

(2003 GMC Yukon Denali)
in Springfield, OR on May 15, 2012
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.
Displaying 3 answers & 3 comments
Popular Answer
on May 15, 2012
Ron, you old dog, how are you doing???

you got Jim to answer you on this one....

Hope you guys are well.

on May 15, 2012
I have new duties here at the facility and the other two. Very seldom do I have any free time any more which is good because it keeps me from thinking about Deb. I now run all the auctions, do all payroll, disburse inventory and travel to the facilities for auctions and maintenance concerns and decisions about how money is spent for the maintenance and repairs. Very but this came up about the owners vehicle. I found where there was a Special Policy given by the dealers but the mileage and time are long past and very much feel that the Policy repair would have fixed because it dealt with the gauge cluster. I promise to get on here again but have just started doing the extra here at work and am still getting my feet wet. Good to hear from you. Do you get my email forwards I send you at times?
on May 15, 2012
The temp gauge signal comes from the PCM which relays the signal from the engine temperature sensor. I would suspect the temp gauge is no longer working due to an internal cluster fault. If the coolant sensor signal to the PCM is OK when monitored with a scan tool, repair or replacement of the instrument panel cluster will be necessary. Please note if the original cluster is repaired, no programming should be necessary. If the cluster is replaced, the new cluster will require programming.
on May 15, 2012
I believe your reply is correct because I did find a Special Policy done at the dealers about this but his mileage and time are well past what they will cover. Thanks for your input. I don't know if you can tell but Roy knows I used to be on here quite a bit and plan to be back and answer some questions myself. Thanks again.
on May 16, 2012
Hey guy's good to hear from both of you, check out our blog Natelie did a story about some of my muscle cars
on May 16, 2012
Good to hear from you again as well. I plan to get back on here soon as I can get a handle on my new duties and can plan down/sleep time. Is kind of hectic right now with it all being thrown in my lap at once.
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
It just started when my wife came home. There were no previous issues.
Drove my 05 Denali one day and the next day it wouldn't start turns over about 6-12revolutions and stops then again a...
Didn't find what you were looking for?