A/C Problem.
A/C Problem. I recently bought a cheapo gauge and some 134a because my a/c was a bit low on freon, and could be a lot colder, it was at 37 psi @ 90 degrees outside, anyways, i got it to about 50psi according the the gauge, which it was 90 degrees out, so 45-55 was the spec, well it ended up taking like 2-3 small cans, and it was definitely much colder.
Anyways, 2 days later, I start the car up, kick the a/c on and I hear this loud vibration and grinding noise, the compressor appears to be going on and off.
So, I pull over, inspect it, raise RPM's, and it's a distinctive clicking noise coming from the compressor, and BAM, out shoots freon or compressed air from what I think is a pressure relief valve? only lasted a second or two, or some kinda safety thing, I'm just at a loss.
Any ideas? I really don't wanna get raped on A/C, i'm bringing it to a guy I know tuesday so he can check it out, this sucks lol, I bet compressors for these things are expensive.
I have also read that if the safety valve opens like it did for me, it may just need a pressure switch, hopefully it's that or a clutch..bummer!
Anyways, 2 days later, I start the car up, kick the a/c on and I hear this loud vibration and grinding noise, the compressor appears to be going on and off.
So, I pull over, inspect it, raise RPM's, and it's a distinctive clicking noise coming from the compressor, and BAM, out shoots freon or compressed air from what I think is a pressure relief valve? only lasted a second or two, or some kinda safety thing, I'm just at a loss.
Any ideas? I really don't wanna get raped on A/C, i'm bringing it to a guy I know tuesday so he can check it out, this sucks lol, I bet compressors for these things are expensive.
I have also read that if the safety valve opens like it did for me, it may just need a pressure switch, hopefully it's that or a clutch..bummer!
Last edited by mischief; May 30, 2010 at 01:10 AM.
No ****? the little 12 OZ cans? I guess that piece of crap gauge is what I should have not went by, well i suppose I learned a lesson this time around, I didnt know much about a/c, and dont have the sticker on the air box showing how much a/c it takes.
thanks a lot tho man.
It only holds 1.5lbs? doesnt seem like much.
Did I damage anything you think? when I bring it in I'll let him know I overcharged the system, hopefully my compressor is ok, I'm thinking the safety valve will save my *** I hope, will it need replaced?
thanks a lot tho man.
It only holds 1.5lbs? doesnt seem like much.
Did I damage anything you think? when I bring it in I'll let him know I overcharged the system, hopefully my compressor is ok, I'm thinking the safety valve will save my *** I hope, will it need replaced?
TECH Addict
Joined: Jun 2009
Posts: 2,012
Likes: 0
From: Tulsa, OK
You possibly damaged the compressor, although the relief valve is there to hopefully prevent that. You for sure stress tested the system. As long as the relief isn't leaking it should be ok.
The cheapo gauges that come with a can of refrigerant are worth exactly what you pay for them.
The cheapo gauges that come with a can of refrigerant are worth exactly what you pay for them.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Well, I just released some of it with a rag and a screwdriver while the car was off, and everything is working properly now, a small amount of oil or die came out but nothing too serious, I guess I luck'd out this time around, it may still be overfull but..
My neighbor has proper 134a gauges and knows a/c so I'll have him check it out first, before maybe having it evacuated and refilled.
My neighbor has proper 134a gauges and knows a/c so I'll have him check it out first, before maybe having it evacuated and refilled.
