Engine coolant temperature gauge

Thank you for this post, I had to get a rebuilt cluster for $145.00 all fixed! I love this site

I have a 2007 Equinox. The temperature gauge sometimes works but most of the time it shows hot or off the scale even at start up in the morning. I replaced the coolant temperature sensor and no change. No problems with overheating though. I figured it must be the instrument cluster panel and I’d live with it and have been for the last 6 months. This morning, after I started the car, I had no power to the entire AC control section under the radio section. After work I started it and now I have AC control power and all is good (except the wacked out temperature gauge). After reading about this, I am thinking I might have a bad BCM. Maybe these are unrelated. A blown fuse couldn’t cause the self-fixing AC control issue, but a bad BCM could cause both problems. Thinking about replacing BCM but would like to do a little troubleshooting first with some expert advice. Please offer any help here if you have experienced this or know about this. Any help would be greatly appreciated.

Understood. Thanks. The AC module thing has not come back. Yet. So not going to worry about it unless it acts up again. I have a friend with the same year Equinox. Neither have that passlock feature. Do you think I could plug her BCM in as a quick test to see if my temperature gauge works without causing damage?

I changed thermostat because I thought it might be sticking but having same problem. The temp gauge goes almost to redline the fans kick on like they are supposed to there is no leaks anywhere and it is a closed system no rad cap what else could it be

I have a 2005 Chevy Equinox - LT. I have what siounds like intermittent valve noise or the water pump - metal to metal sound. Temp gauge is ok and engine oil was just changed. Any ideas?

There is no coolant leaking. The "knock" I hear is as I am driving. No more or less during acceleration. It is intermittent. I will check again today, but I think it was more noticeable as I moved the stearing wheel to the right slightly as I drive (not turning, just a nudge or so then straight again). I am trying to narrow it down.

Thanks

As I drive it sounds like chatter from the steering components. Today while driving 5-10 MPH I heard the chatter again. It increased as I moved the steering from side to side. I was in traffic heading to work. I will to check some of the underside components tonight to see what else it might be.

I was sitting at a stop light and the temp guage shot up to high and the light came on and the vehicle seemed like it wanted to cut off but it didn't. Why is this? I've checked the radiator coolant and it was full, but when I cut the car off there was none left and there wasn't anything on the ground.

Yes. I got to get up under there to see. Something is loose. When I go over a pot hole or if I***** the steering wheel left to right rapidly I can hear the chatter. Normal bumbs are OK but if I go over a severely damages or roadway in need of paving the chatter is louder.

I will try what you've suggested. The reservoir was full and then I left the cap off and I heard it gurgling and then I put the cap back on. Then I noticed it was empty. I am allowing the car to rest and will put the correct coolant in the car in the a.M. I am traveling tomorrow and I just want to be safe. Thank u so much for ur assistance.