Q: Cars overheating but engine is cold and the heater blows cold air

asked by on

What could my options be for getting this fixed

My car has 240000 miles.
My car has an automatic transmission.

Hello...the simplest option is to just request an engine overheating diagnostic and the responding certified mechanic will identify the root cause(s) of the troubles you are writing in about and get the repair estimated for you. Repairs can be commenced right away, too, of course. If the vehicle is overheating, or you have suspicion that it is, continuing to drive it could warp the heads and block. On your own, once the engine has fully cooled, you can check the coolant level. If low, add the appropriate mix of antifreeze and distilled water, and be sure to fill the recovery tank, too. If it is low, you might have a leak and a leak diagnostic would be the appropriate service if you suspect a leak. If an engine "feels" cold, or "normal" but the dash gauge shows overheating, you could have a faulty temperature sensor and/or gauge. No cabin heat could be due to low coolant, blocked passages, faulty heater control valve and/or faulty blend door(s) in the dash ventilation network. Your best bet is to commence with the engine overheating diagnostic and the responding certified mechanic will be able to guide a resolution to all of your concerns from there.

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. Cars overheating but engine is cold and the heater blows cold air

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: Truck is overheating - 1992 Chevrolet C1500

There are a few things to check over. The water pump produces flow. To check this remove one of the heater hoses (small diameter) going to the heater core. Locate the hose end to a container to check flow of...

Q: I have rusted rocker panels on both sides of the car is it worth saving?

Hi there, thanks for writing in. Body shop prices vary widely, mostly based on where you are, and how good the body shop is. If both your rocker panels are truly rusted out, it will probably far exceed the value...

Q: Q: Air not flowing out of front vents.

If the blower motor is not turning, the cause is identified during a failed heater diagnostic. Blower motors failures are due to faults in the wiring, fuse, relay, control switch, resistor block, if so equipped, and of course the blower...

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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...