At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.
Just had a/c fixed, worked for a couple days but now its not blowing cold air the a/c lines are cold,the compressor is cycling on & off,could there be a blockage at drier? i have a 2004 chevrolet express 3500 w/ front and rear air
- 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.
Low freon will cause the compressor to short cycle, when the compressor runs the pressure in the low line is pulled down and the low pressure switch turns it off. Not running the pressure builds up and turns it back on. In the old days there was no low pressure switch, with no freon to carry the oil the compressor was destroyed.
Control dampner switch okay from looking at the fron of the car on the passenger side youll see a group of vacuum hose plastic connecting to a junction make sure none of the are broken Two of the control the vent control and inside tempurature. Once it disconnect you no longer have mixture control. Do you remember when it was working fine and you turn off the car and you heard that little hissing noise? Well that line is now disconnected
what makes u say ur ac refrigerant has a blocked passage? check the low pressure line by touching it with ur hand while ac is running/ it has to be freezing cold/ if not cooling it means ur compressor is weak and or refrigerant is low/ high pressure line is normally hot/ check ac magnetic clutch operation must engage when ac switch is on and disengage when ac is turned off/ check ac condenser must be blocked and needs cleaning....
This may be the AC compressor cycling switch is defective. It is located in the larger of the 2 AC lines coming from the compressor, it has a wire connector to it with 2-3 wires. To verify this is the issue jumper the connector with a small piece of wire and see if the compressor runs.
if you recently had the system recharged they may have over filled the system. The ac system has both a HIGH and a LOW cutoff point to keep from damaging the compressor. If it is cycling the compressor on and off (you should be able to tell this by the ac clutch clicking on and off occasionally. If the pressure on the lines gets too high it will cutoof to prevent blowing the lines, if it gets too low it will stop the compressor from damaging itself. I had overcharged my 90 nissan once and it acted this way, it really acted up especially on very hot days.
×