Skip the auto shop - Our mechanics make house calls

Q: Ambient temperature sensor is said to be bad..clutch will not engage.

asked by on

Took vehicle to dealer. they said that was the problem. we have put another compare sensor and a new evaporator. also a used condenser plus a accumulator. and the clutch still won't engage.

My car has 120000 miles.
My car has an automatic transmission.

A: The A/C compressor clutch is turned on and ...

The A/C compressor clutch is turned on and off by the clutch relay in the intelligent power module on left side of engine compartment. The relay is turned on and off by the engine power train control module. If the PCM is not getting a correct ambient temperature reading, then it will not allow the A/C clutch to be energized. You should have the system inspected to see if you need to replace the ambient temperature sensor. Also, check the A/C pressures for any other problems. If you would like to have this checked for you, a certified technician from YourMechanic can come to your home or office to diagnose your clutch issue and make the appropriate repair.

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

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: Backup light comes on when brake i depress

First, make sure the reverse lights are not just simply always on, which might signify a fault with the neutral safety switch. If indeed, illumination is only occurring with brake light illumination, check to be sure that you have the...

Q: Changed alternator and battert, light still on and car dieing

This may suggest a bad grounding issue or potentially a failing voltage regulator. This is a unit that regulates the charging of the battery by the alternator. Often times this will result in the alternator allowing too much power to...

Q: Is this a brake fluid leak??

Yes, this is a brake fluid leak, but it is coming from your clutch hydraulics - probably the slave cylinder or the fluid line. Check both the clutch and brake fluid reservoirs (sometimes combined) for low fluid. I would recommend...

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...
How to Renew Your Car Registration in Oklahoma(DELETED)
Having your car registered with the Oklahoma Tax Commission is an important part of driving legally in this state. You will need to do this within 30 days of moving to Oklahoma...
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...