Q: AC compressor clutch doesn't stay engaged

asked by on

Recently replaced the high pressure hose assembly recently and recharged. Blows cold until i get to either a high speed or high rpm and the clutch fails to engage and there is no more cold air. Is the clutch bad or a bad relay?

My car has 204000 miles.
My car has a manual transmission.

This would require more testing with the pressure gauges to see if the A/C system cuts out due to low pressure on the low side of the A/C or high pressure on the high side. The most common problem is the low pressure switch on the accumulator not cycling back in to re-engage the compressor. The switch can be unscrewed and replaced without discharging the A/C system. If you’d like to have this looked at, a local expert from YourMechanic can inspect and repair the A/C system for you.

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. AC compressor clutch doesn't stay engaged

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: Car overheating and heater blowing cold air.

When a car overheats, it is an indication that there is a problem with the engine cooling system. The purpose of the engine cooling system is to keep the engine at a temperature that is consistent. If the temperature of...

Q: car was smoking replaced radiator a day before

If you request an engine overheating diagnostic the responding certified mechanic will get this resolved for you promptly. In the interim, of course it's not recommended to drive the car if it is overheating because overheating can warp the cylinder...

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

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...

Related articles

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...
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...
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.