Skip the auto shop - Our mechanics make house calls

Q: My car keep overheating. Does the muffler sensor have anything to do with that?

asked by on

My car keep overheating. Does the muffler sensor have anything to do with that? My car has a manual transmission.

A: The muffler does not have a sensor but you ...

The muffler does not have a sensor but you do have a sensor for the catalyst on the engine called an O2 sensor. This sensor will not have anything to do with the engine overheating. You should have the engine cooling system checked for the overheating. You may have a cooling fan that is not coming on due to a fan switch in the radiator or the fan motor is bad. The most common cause of overheating is the fan switch or the thermostat stuck closed. Have the cooling system diagnosed as soon as possible may help to keep from damaging the engine by warpage on the cylinder head or blowing out a head gasket. Check to see if the cooling fan is coming on when you start to overheat and then check to see if cooling fans are getting power or not. The fan switch controls a fan relay and a thorough check of this system will be needed to isolate the failure. A certified technician from YourMechanic can come to your car's location to inspect the overheating problem and ensure that the proper is made.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Truck is overheating and the heater is blowing cold air.

Hi there. There is a blockage in the engine preventing the engine from cycling the coolant. If there is a new water pump and a new thermostat, then the coolant should be cycling. Check the radiator for any blockages. Drain...

Q: Emergency brake not working right

The parking brake is part of the rear brakes. If your brakes do not hold you on a hill, then the rear brakes are either worn-out, or in-need of an adjustment. I recommend that you have a mechanic, such as...

Q: Brand new timing belt broke what could be the impact on my engine

The engine in your vehicle is labeled as an interference engine. This label means that when the timing belt drive system experiences a failure, there is an almost 100% chance the valvetrain suffered a great deal of damage. This possibility...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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.