a/c clutch stopped engaging. no power to green wire to clutch.
- Thread starter QUIP'6'
- Start date
GNONYX
Well-Known Member
- Joined
- Oct 16, 2009
here is the location of the AC compressor relay
http://www.gnttype.org/maint/sensors.html
http://www.gnttype.org/maint/sensors.html
GNONYX
Well-Known Member
- Joined
- Oct 16, 2009
I personally have not remove or see underneath the AC relay terminal so I don't know which wire it is, but the AC print I sent you does show which one it is.
Clarlief1 posted this for you:
I believe he was asking if you can jump out the AC low pressure switch to see if the clutch will engage. I know you already said the system is full, but you could also have a bad low pressure switch.
The Buick AC service manual prints that I sent to you can give more detail of troubleshooting, and a flow chart of some variables.
Clarlief1 posted this for you:
I believe he was asking if you can jump out the AC low pressure switch to see if the clutch will engage. I know you already said the system is full, but you could also have a bad low pressure switch.
The Buick AC service manual prints that I sent to you can give more detail of troubleshooting, and a flow chart of some variables.
GNONYX
Well-Known Member
- Joined
- Oct 16, 2009
Here is Steve Woods, The creator: http://www.vortexbuicks-etc.com/ecmwiring.htm
Look at the last diagram bottom page and it will show what you are looking for. AC Request and AC Clutch Control
Look at the last diagram bottom page and it will show what you are looking for. AC Request and AC Clutch Control
I had the same exact problem. I called CharlieF1 and if I remember correctly the problem was a break in the green wire. Just splice in a wire (preferably green to keep the colors consistent) close to the low pressure switch and run it close to the connection at the compressor. Splice it in close to the compressor and you will have cold air again. So basically you just need to bypass the break in the wire. Also be careful as there are two green wires, one is darker than the other.
Let us know if that fixes it.
will do just got to get time and have a day to work on it. its a friends car
Ok, shouldn't take more than 10 minutes. Just stop at parts store and get a roll of green wire.
So the clutch engages now but didn't before? Try running a hot wire from the battery positive terminal to the fan positive. Just pull the wire on the fan with the rubber boot on the end. If the fan doesn't engage then you need a new fan. Just got done (like 5 minutes ago) replacing my fan. Bought it last July from Autozone. Made in China by VDO. Liftetime warranty so new piece of shit one was free.
GNONYX
Well-Known Member
- Joined
- Oct 16, 2009
I'm almost at the end of my thinking cap to figure out your friends AC problem. I have been looking at all of the prints I sent to you, but only thing that's still bothers me is the original problem of how it got started, by installing a transmission.
I also looked at this and I don't know if this could be related or not, maybe you can see and read on page 1B-3 (compressor control relay)
Another question, hows the vacuum reading on the engine?
I also looked at this and I don't know if this could be related or not, maybe you can see and read on page 1B-3 (compressor control relay)
Another question, hows the vacuum reading on the engine?
