Q: My oil light does not come on when the oil is low, and the heater only blows hot air for a short time.

asked by on

I have 2 issues, the oil light and heater. My heater all of a sudden has quit working. When I turn on the heater, it will blow out hot air for about 20 minutes and then blow out cold air. Do you know what might be causing this? Another mechanic at a dealership said that if it was the thermostat, that a code would come up. I have recently had the codes read and the only thing coming up in the codes was for the Transmission Control Module, which I have an appointment to be replaced. I had recently asked a question about why my oil light does not come on when the oil is low. I have been so low on oil a couple times that my car has started to make noises before I realized what was wrong. I want to avoid this happening again. I was going to get the oil sensor changed, but the mechanic on here who responded to me said that my oil light does not work that way. How do I know if the oil sensor is bad? And when the oil is low? I cannot afford a diagnostics at this time. Thank you!

My car has 144000 miles.
My car has an automatic transmission.

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
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 oil light does not come on when the oil is low, and the heater only blows hot air for a short time.

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: Check engine light is on with codes U110C and U0140

Have the battery checked first to see if it is okay. If the problem continues, then the body control module may not be working properly and would need to be replaced and programmed with a new body control module. This...

Q: How do I know my engine mount needs to be replaced

If your engine moves excessively and you hear a noise when accelerating or letting off the gas pedal, then you may have a broken mount. These types of noises could also come from other components in the suspension, steering, or...

Q: 2004 acura mdx timing belt service: what components do you recommend replacing

Hello, thank you for writing in. When changing the timing belt, it is often recommended to change the water pump, chain tensioner, and the gaskets involved with accessing the timing chain. The price is vary greatly depending on what kind...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
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.