Q: Temperature gauge sits on cold always

asked by on August 09, 2016

My issue started when one day from work my temp gauge dropped to the cold mark and the AC stopped blowing hot air also check engine light came on. Replaced thermostat and ECT sensor this had gauge working for a day but now it's back to the same problem as above.

My car has 145000 miles.
My car has an automatic transmission.

This is a common issue on this generation of the Chevy Malibu. This could be any one of a few problems. This could be a result of a bad BCM (Body Control Module). This is a module in your car that receives signals from other devices and turns them on or off depending on the inputs it receives. You may also have a faulty refrigerant switch or potentially a faulty A/C clutch.

I have also seen this happen even when the battery terminals are very dirty. If this is the case, you may also want to have the battery tested to see if it is capable of holding a charge. If you would like this done, a local expert from YourMechanic can come to your home or office to diagnose the Check Engine Light as well as repair your temperature gauge issue.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

How do I get the passenger airbag sensor to recognize the passenger?

The passenger airbag sensor determines when there is a person in the passenger seat. When the sensor determines that there is a person I the passenger seat, the passenger airbag will be turned on. However, sometimes the passenger airbag sensor...

Overheating

For the sake of clarity, it is important to distinguish when the car is overheating. If it is overheating when the car is moving, then the fan clutch isn't your only problem. If the car only overheats at a stop,...

My car is shaking when i stop. I was told i need new rotors. How much would that be including parts and labor

Not only would you need to replace the rotors but you would need to replace brake pads and rotors at the same time. The rotors are causing the car to shake when stopping. The brake pads will have grooves and...

Related articles

How to Charge a Car Battery
In In an age where it seems every moment is tied to a schedule, the last thing you need is to find yourself stranded when your car doesn't crank due to a dead battery. It doesn't matter whether you're at...
P2099 OBD-II Trouble Code: Post Catalyst Fuel Trim System Too Rich Bank 2
P2099 code definition Post catalyst fuel trim system too rich bank 2 What the P2099 code means This trouble code indicates that...
How Long Does a Car Battery Last?
The life of your car battery depends on how long it can hold its charge, and is capable of being recharged. Once it can’t...