Table of Contents
Why is my Volkswagen Jetta not blowing cold air?
While there are a variety of reasons your Volkswagen Jetta air conditioning won’t work, the most common 3 are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor.
Why is my AC still not cold after recharge?
Added Freon still not cold If your car’s AC isn’t blowing cold air it might be low on refrigerant. In most cases you can recharge car AC systems yourself with a can of refrigerant, a charging hose and gauge from any auto parts store.
How do you know if your AC compressor is overcharged?
The most common indicators of an overcharged system are:
- Increased pressure throughout the system, characterized by high head pressure and high suction pressure with low suction superheat;
- Increased flooding of refrigerant to the compressor during off-cycle, which may cause flooded starts;
How much freon does a VW Jetta hold?
NOTE!
| Year | Model | Refrigerant |
|---|---|---|
| Ounces | ||
| JETTA | ||
| 2001-2003 | All Engines | 27.00 |
| 1999-2000 | All Engines | 26.00 |
How do you test a compressor solenoid?
Start the car and turn on the ac. Using the clt, raise the input level until you see three or four dots on the clt. This will open the solenoid on the rear of the compressor allowing refrigerant to enter the pump; you will then see some movement on your gauges.
What if I put Freon in my car and it’s still hot?
If the A/C works okay then gradually blows hot air after recharging, you might be dealing with refrigerant leaks. The safest and effective way to find leaks is to vacuum the system. Take your car to a qualified technician to have the system diagnosed.
Why is my Volkswagen Jetta air conditioner not cold?
Most of the time, when your Jetta’s air isn’t blowing cold enough, it is going to be a lack of refrigerant causing the problem. We recommend having a professional recharge your A/C if it does end up being a coolant issue. If you put too much coolant into the system, you can really do some damage.
Why is the a / C not working on my VW?
Customer Concern: The A/C is not working. There is no power to the A/C compressor clutch and it does not engage. (Manual climate control.) Potential Causes: A/C Compressor, A/C Pressure Sensor F129, A/C Switch, Ambient Temperature Switch F38, Battery Auxiliary Fuse Box, Fan Control Module J293 (and Wiring), Fuse or Lost Throttle Basic Settings
Why is there no power to the a / C compressor?
Potential Causes: A/C Compressor, A/C Pressure Sensor F129, A/C Switch, Ambient Temperature Switch F38, Battery Auxiliary Fuse Box, Fan Control Module J293 (and Wiring), Fuse or Lost Throttle Basic Settings Test the Fan Control (FCM) module inputs as follows: 1.
What’s the duty cycle on a Volkswagen a / C compressor?
3. Verify an approximate 70% duty cycle from the A/C pressure sensor at pin T14/2 (white) with the ignition on and the compressor not running (duty cycle will decrease as the high-side pressure increases).