An expert who has achieved level 3 by getting 1000 points
An expert that got 20 achievements.
An expert that got 10 achievements.
An expert that got 5 achievements.
Re: AC 2002 VW blows hot air
1. Is compressor engaging? You cannot just stuff referigerant into the system without knowing how much is in there already. If you do, you can do far more damage to the system! 2. Are there any leaks? Find out before wasting your time on charging. If system is empty, it must be purged before charging. Air in system will also cause problems 3. There are several control units and sensors on an a/c system. They should be tested before doing anything. This is one area that requires far more than guessing to service!!! System is pressurized and can be dangerous to work on as well!! My best solution is to have a competent shop look at it. In the long run, it should be cheaper and safer than diong it yourself!
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
An AC system blowing hot air is usually due to a low freon charge or a non operational AC compressor. If the fuse blows, disconnect the compressor electrical plug and turn on the AC. If the fuse doesn't blow, suspect a compressor problem. If the fuse continues to blow with the compressor disconnected, there is a direct short between the ON/OFF switch and the compressor which can take hours to diagnose
If the temperature control is on cool....sounds like you have other problems with AC. ( compressor not working, needs R134,) Check under the hood for a box that has fuses in it, their are also relays in it. Look for the relay marked AC.
First check the ac fuse, if it is ok check to see if the clutch is turning when the ac switch is turned on. If clutch does not engage you should check the ac relay. It is usually located in the fuse box. You can switch places with it and another relay with the same number in the box. If compressor still doesn't run it may need to be charged with R134. If compressor runs for a few seconds and shuts off and continues doing this with control on high. It nees more refrigerant added.
Check the fuse for the A/C and try refilling the A/C with R134. You can buy the re charge kit at Auto Zone or Wal Mart, almost any Auto parts store. If the system is low on R134 the A/C compressor will not activate to keep it from burning out.
Try checking the fuse first then re charge the system with a can 12oz of R134. Just keep in mind not to over charge the system. Just follow the instruction and you'll be fine.
Keep me posted, be glad to help out.
On the bottom of the air unit is the lever that changes temps. It likes to fall out of place.I propped mine back with a piece of half-inch copper pipe a couple of years ago.Remove glove box then panel on front side of console to access.