Units Affected 9178 Some would call my approach to chaperoning our long-term vehicles odd and perhaps a little inappropriate. Hi i have a 02 wrx with the ac pump cycling on and off and blowing cold then warm air i think it mite be the thermo sensor. . Has anyone looked at fuel pressure? The closest Subaru dealer is a long drive from here and is rather difficult to do business with. This requires taking the Evap core out of the vehicle which is partially removing the dash components on the passenger side.
The ac engages based on pressure and temperature and disengages for the same reason, when a pressure value is met. There is power at the relay and when I jump it to B+ the clutch enables. Someone must ascertain where the hot air is coming from if its not the vents? You should not have paid to have someone recharge it while it was under warranty, and if a independent shop notices an issue its up to you to make an appointment to get it resolved. It blows cool when it runs. Hello Patrick, Your Chevy Truck uses a low pressure cycling switch to engage and disengage the compressor the Subaru does not. I just drove 300 miles with the ac on worked great parked for 2 days and it was doa on the return trip. But is never very cold at all.
Thought maybe cabin filter was extra dirty but even with removed still does same thing. The Ac system in the Chevy and Benz are much larger than the Subaru in terms of capacity, so unless you actually do an evacuation of the Chevy or the benz, and measure what comes out you do not know if its low you are merely assuming because it works it is full, which one day will create an issue with the compressor. On a side note, I have worked on cars for over 10 years. Unless you posses the proper leak detection equipment you will not be able to find most refrigeration leaks. Works fine for 20 min. What are some troubleshooting ideas you would recommend? Thanks for any feed back.
When the ac button was turned off, no noise. Any Information you have will be helpful. Even though no one died from that comment I did point out that I drove valet for 3 years, have driven manuals my whole life. The expansion valve has to be removed to inspect and even then would have to be cut apart to look for any debris. Also, I will think hard in the future about whether taking the car to the dealer for issues like this is the way to go rather than bring it to a reputable, independent mechanic. I have a 95 Legacy Outback 2. I usually suggest replacing the expansion valve at the same time.
Any ideas what this might be? When I had a new battery put in, the whole computer system needed to drive 80 miles to be reset…which it did in fewer miles, thank goodness. I recently purchased a 1995 Subaru Legacy. It almost immediately started squealing and occasionally making a strange fog horn like noise. Some one mentioned a pressure switch. If I had to guess however there is some debris in the system. Hi Lucas, You need to go back to the Dealership and let them know there is still an issue. So far what I have done is test the low side pressure with a cheap gauge that comes with the refrigerant, but not adding any refrigerant.
Recirc was set to fresh air. Its difficult to speculate without information like there is power to the motor but it fails to come on, or there is power but no ground signal. Dennis Hello Justin, Do you know any reliable shops in Chicago area that specialize in fixing air conditioning systems. It gets so warm in the drivers compartment I have no choice to open all the windows and sunroof. I can here a loud thump every time it stops and restarts. The temp outside was 61. Hello, I have an 06 legacy outback! If this is accurate what a mess.
Hello Hubert, Most Ac issues are straight forward, but sometimes they are not. I pulled it to inspect it, and the hose connecting under the dash. It happened twice this wed at 330pm and at 7pm, weather outside was 71. We do not see a lot of Ac compressor issues, but it can happen, especially if it had a low charge due to a leak, thus not enough oil to lubricate the compressor. It stays engaged like this until I pull the connector. Did you have a chance to review the wiring diagram? Lasts up to 20 miles on freeway. I have found another shop, problem is I use car for work driving all over town.
Its totally resolvable but is going to take some patience to get through. So I bought the speed sensor from them and installed it. Fuses and relays are good, have power to the compressor. Thanks for sharing your knowledge. So the questions are these: is there a standard Subaru trouble shooting procedure for these systems? Hello Tom, Jumping switches and bypassing controls is not a good way to accurately diagnose an issue and you need to use caution. After a short stop it will once again run cold. Which is exactly what happened the first time I took it in and got it charged.
In aug 2012, I was in 115 degree weather. Probably happened at least 3 times in 8 years. If I hook up compressor clutch to 12v and drive it, blower on high, it gets nice and cool. Seems to occur more often when car is heavily loaded or when driven more aggressively. Took to my regular mechanic. It needs to be tested. Does someone has the complete wiring? Issue is when it is 91 degrees out left two vents blow hot with recirc light on right vent over radio is coolest right passenger vent is slight cool.