Q: Heater and oil light issues.

asked by on

Hello. Recently the weather has gotten cold and my cars heat has decided to only work while im idle on my breaks and when i start to drive again it blows cool air. And now my oil pressure light keeps coming on every time i break or hit a bump. I went and got an oil change thinking it would solve the problem but its just gotten worse. Every 5 seconds the oil pressure light dings on. I cant take it. I would like to know the issue before i take it to a mechanic to get fixed. Thank you.

My car has 129000 miles.
My car has an automatic transmission.

Hello. From what you describe it would appear that your vehicle is experiencing two separate issues. Problems with the heater can be caused by a few different things. The first thing I would check is to make sure that the cooling system is properly filled and topped off. Low coolant, or a system that needs to be bled of air pockets can be cause all sorts of issues including erratic behavior from the heater, and in some cases even engine overheating. If the coolant is at the proper level then it may be possible that there is an issue with the heater control valve or blend door actuator, the components that control the flow of coolant and air through the system. These are located in the engine and interior of the vehicle and are integral to the proper operation of the heater. In regards to your oil pressure light, if you have recently gotten the oil changed then it may be possible that there is another issue with the vehicle that is setting off the light. A blinking light can be caused by a faulty oil pressure sensor or the associated wiring and connector. A test and inspection of the sensor and harness could determine if this is the issue. Similar symptoms can also be caused by a worn oil pump or engine bearings, though this is less likely. I would recommend having a professional technician, such as one from YourMechanic, come to your location to determine what the causing your issues.

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. Heater and oil light issues.

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: Chirping noise when I accelerate

This may be related to a failing power steering pump or low power steering fluid levels. As you may know, the power steering system uses a pump, normally driven by a belt. The pump supplies pressure as it is turned...

Q: Compressor shaft seal leak

Hi and thanks for contacting YourMechanic. Put a manifold set (A/C gauge set) on the A/C ports and check the system when it is running on high A/C. Look to see what the pressures are on the high side and...

Q: Q: Low oil pressure light on

Hi there. Sometimes when a mechanic removes the OEM timing chain and installs a new kit, mistakes can be made on reattaching electrical or ground wires to internal components, such as the oil pump. Other causes that might trigger the...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.