Q: What is causing temp to go up and seems like car doesn't have usual power.

asked by on

Replaced thermostat &pump fri plus added coolant. Light came on yesterday. added coolant this am. Now this afternoon almost 7hrs later after not using car for that time temp is going up? About 3 notches after 200. Turned heater went dwn a little. What could be the problem?

My car has 94000 miles.
My car has an automatic transmission.

This can be caused by a number of factors such as low coolant levels, a faulty thermostat, or a failing coolant fan switch. As you may know the coolant fan switch helps to maintain the proper coolant temperature by turning on and off at specific temperature thresholds. When this switch is not working properly, this can cause the fans to come on intermittently, all the time or sometimes not at all. When this happens you will notice a temperature spike and drop occasionally as the fan comes on and off. A YourMechanic certified technician can come to your location to perform a Temperature Warning Light is On Inspection on your vehicle and help you diagnose this issue and recommend repairs.

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
  1. Home
  2. Questions
  3. What is causing temp to go up and seems like car doesn't have usual power.

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

Q: Car overheats and air conditioner not working

While having a broken A/C is a big inconvenience, having your Pontiac overheat is a much bigger concern that we will need to addressed first. When your Grand Am overheats, the temperature rise inside causes damage to the engine and...

Q: Is my thermostat the problem or is it my oil pump? I've been researching but I don't know for sure.

Hi there, thanks for writing in. The problem with oil pressure and overheating issues is that there are several individual components that may not be working correctly to cause these issues. My first guess would be that the thermostat on...

Q: Buying a 2005 Pontiac Grand Prix off craigslist.

Hello....used car repair, maintenance, and restoration costs are highly dependent on the actual, as found, condition of the vehicle. To get a reasonably precise estimate, and also to protect yourself in the transaction, I recommend you request a pre-purchase vehicle...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...