Manual A/C Problems on a 98 Coupe
Thread Starter
Melting Slicks
Joined: Mar 2001
Posts: 2,482
Likes: 0
From: Worden Illinois
Manual A/C Problems on a 98 Coupe
I am having problems with my manual A/C.
#1 A/C is not that cold. I did add some r134a. It helped some.
#2 A/C blows warmer on the drivers side.
#3 A/C seems to be a little cooler at low rpm's
I have also noticed that the compressor does not cycle. Is this normal ?
I did have the vacuum line problem from a leaking battery. I made those repairs and that part of the system works great.
I know the warm on the drivers side condition is common with the automatic hvac systems. The manual system only has 1 temp. control VS. the Rt & LFT. of the auto systems.
Please Help.
#1 A/C is not that cold. I did add some r134a. It helped some.
#2 A/C blows warmer on the drivers side.
#3 A/C seems to be a little cooler at low rpm's
I have also noticed that the compressor does not cycle. Is this normal ?
I did have the vacuum line problem from a leaking battery. I made those repairs and that part of the system works great.
I know the warm on the drivers side condition is common with the automatic hvac systems. The manual system only has 1 temp. control VS. the Rt & LFT. of the auto systems.
Please Help.
Pro
Joined: Jun 2005
Posts: 548
Likes: 0
From: Fremont California
Well, I'll take a shot at this.......Simply recharging an A/C system never fixes anything. The system has three major components and a few smaller ones. Most of the time, your problem lies in at least one of the three big ones: compressor, evaporator, and condenser. You mentioned that you didn't hear the compressor cycling...by that I take it you don't here it "clicking". You might have a short somewhere either inside the compressor or leading up to the compressor. Just a thought!
Le Mans Master
Joined: Jan 2001
Posts: 5,017
Likes: 508
From: Hilton NY
Unless the system is filled to capacity it won't cool right. If the system is too low on refrigerant then the safety switches will prevent the compressor clutch from turning on to protect the compressor. The use of a high pressure gage will tell you when to stop adding 134a. If the car hasn't been touched in years then it could be low on 134a, if it was worked on last year then it could have a leak. A local a/c shop can use a sniffer to check for leaks.
