Q: trying to refill ac but the compressor will not kick in is there away to bypass the compressor

asked by on April 29, 2017

trying to refill ac but the compressor will not kick in is there away to bypass the compressor

My car has 84585 miles.
My car has an automatic transmission.

If your car is only 4-5 years old and the system is so low on charge that the compressor won’t turn on, that means you have a significant leak. It might be a waste of time to re-charge the system because whatever is added will leak out, possibly fairly quickly. Gauge pressures, high and low side, should be measured. If gauges read 70 PSI or more (static, with car off), that means that the compressor is not coming on for reasons completely unrelated to the state of charge (70 PSI is high enough for compressor to turn on). That is, if system pressure is high enough, and yet no compressor operation, there is something wrong with the compressor and/or the control circuit (clutch, switches, etc.). Another possibility is the system has zero refrigerant in it but is simply filled with air. In that event, the leak(s) must be repaired, the system dryer MUST be replaced, and the system must be thoroughly evacuated and dried out (all moisture boiled off during evacuation). To obtain a diagnostic of your system and find out what needs to be restored to get it to function please request a/c system service and the responding certified mechanic will get this taken care of for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help 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

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

Why does my car shake when I break and why does it sound "old" in cold weather after warming up?

The hard starting in cold weather is almost certainl due to a failing battery. A borderline battery can often be pushed over the edge by cold weather. As far as the braking issues is concerned, the most likely cause is...

Dealership says water pump needs replacing

With regard to the dealership, or any mechanic for that matter, simply ask for the evidence substantiating the diagnosis and proposed repair. In the case of an alternator, once the drive belt is removed from the engine, and the engine...

I have 97 nissan altima, It stalls when I stop at stop lights and idle, the RPM vibrates and falls down and the lights come on, it

Hi there. Usually when you have a problem like this, it is caused by fuel system components that are clogged with excessive carbon build-up or deposits. This creates a restriction in the efficient flow of fuel and can cause the...

Related articles

A Buyer’s Guide to the 2012 Audi R8
The The 2012 Audi R8 is a two-door sports car with plenty of power and performance to offer. It manages to combine an aggressive stance and plenty of get-up-and-go with the comfort and interior refinement you’d expect from a German...
A Buyer’s Guide to the 2012 Volvo S80
The The S80 doesn’t just bring subtle elegance and luxury features to the table, it also brings the long-renowned quality and safety ratings of its Swedish maker. While the brand may not rival the names of BMW and Audi, the...
How to Replace an AC Accumulator
The accumulator in the air conditioning system is faulty if there is rattling inside of it or there is a moldy smell emitting from the AC system.