Q: My 2005 Altima has 2 thermostats. I just replaced both of them about a week ago. Today my temp gauge keeps jumping from normal to

asked by on

As do most of these mid 2000s Altimas I ran into a problem with my heater not working. So I replaced the 2 thermostats, radiator, cap, and coolant. Burped the system till there was no more bubbles coming out. Still no heat, but I did notice a good amount of water pooling under. I'm guessing it's my heater core. But still not sure. Anyways, a week later and out of no where my temp gauge is going up and then dropping back down to normal then back up and back down and so forth. Why is it doing this? I have been driving it for a week with no issues until now.

My car has 180000 miles.
My car has an automatic transmission.

Hi Antonio. Thanks for sending in your question. I think your heater core is the reason why you’re having increased temperature issues. When the heater core gets clogged with debris (engine sludge usually) it restricts the flow of coolant throughout the system - and causes the heater to not work correctly. You should replace the heater core to resolve this 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
  1. Home
  2. Questions
  3. My 2005 Altima has 2 thermostats. I just replaced both of them about a week ago. Today my temp gauge keeps jumping from normal to

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: My Service Engine soon came on what does it mean ?

The service engine soon light is equivalent to a check engine light. Whenever there is a fault, from a bad engine sensor for example, a fault code is stored in the engine control unit, or ecu. When that happens, the...

Q: Pressure control solenoid code

Hello. There are several reasons why you might get this code. Your transmission fluid could be dirty or low, or there could be a faulty pressure control solenoid in valve 'c'. All of these conditions need to be check by...

Q: I have a 2010 ford fusion. The check engine light is on. My car jerks while driving. The rpm goes up and down while driving.help?

Hi there. Usually an engine that is displaying these type of symptoms is caused by a fuel system restriction, a vacuum leak or a sensor that has a faulty connection and is causing inconsistent or misfiring cylinders. Since the check...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.