A/C Overcharged

[Track3r]

Sorry if there was another thread somewhere I did a search and couldn't find it...

Apparently the cause of my ac compressor cycling on and off is caused by the ac being overcharged. The shop where I took it wanted to charge $200 to fix it.

My question is... Can it be done at home any cheaper?

 

[J_C]

More info might help. What you wrote reads like a repair shop scam... but complete details of the problem and their suggested fix might help.

IF , and I doubt it, they are right, to reduce charge all you would have to do is let a little out with the purge valve, but I suspect this is NOT what you need to do, instead finding a shop that is competent and honest, and make good notes of what they claim because you might be dealing with one of those bottomless pit shops that just try to make you pay and pay and pay with that being the goal - not whether they make the right fix.

 

[Track3r]

Well the shop that I went to said that it was overcharged and that you had to pull all the gas/freon out in order to fix it. I do have a guage somewhere that I can use to test the low side but I dont know what it should read while the compressor is engaged.

Help me out with that would ya?

 

[my98nnj]

The shop is correct. The only way to correctly charge the system is to evacuate it and recharge it by weight. How did it get overcharged is the question and $200 is a bit steep. Should be only a 1 hr. labor charge. If it's indeed overcharged you shouldn't be charged any R134.

 

[budwich]

That indeed is the actual question... how did it get overcharged?????? r134 doesn't just grow. Further, you can "simply" test their "assertion" of "over-charged" by monitoring the high pressure switch. Anyways, as posted to "totally" fix any problems, a "shopped" evaculation is best BUT IF your system was overcharged by some "unsuspecting person", then it is likely that the same "unsuspecting person" can reduce the charge at the lower pressure switch with the appropriate "manipulation" of the "charge apparatus"..... otherwise known as a "man-made leak" ... ;-)

 

[Track3r]

The previous owner overcharged it I would assume because its been doing this since I bought the truck.

What psi is the low side suppose to be at?

 

[safn1949]

The previous owner overcharged it I would assume because its been doing this since I bought the truck.

What psi is the low side suppose to be at?

About 30 psi running will work fine,I have a leak in the A/C of my 94 and I put a few cans in it every year.And it works fine.