AC Problem on a car I sold...
08-07-2005, 07:18 PM
#1
TECH Fanatic
Thread Starter
Join Date: Sep 2003
Location: "Tr"Asheville
Posts: 1,937
Likes: 0
Received 0 Likes
on
0 Posts
AC Problem on a car I sold... ...I sold my 99 WS6 to a guy in Charleston not too long ago. Right before I sold it I had the AC system serviced by a whole in the wall shop here in town. Well come to find out we think they put a ground wire from the AC Relay to the body making the compressor run non stop. The guy I sold it to took it to Firestone and had the AC compressor replaced since it fried a few days after I sold it to him. Now it's gone through 5 ac compressors!! The kicker is when they remove that wire the AC will never kick on when it's fully serviced thus something isn't right. Anyone have any idea's??
-Sly
-Sly
08-07-2005, 09:46 PM
#4
does the guy have a multimeter? if so, he can look for voltage at the different relay pins. or he can use a Tech II or something to see if the PCM is commanding the A/C compressor ON. i don't have a schematic in font of mee, but most relays are marked so he should be able to tell what terminals in the relay socket should be grounded, hot or neither. also, tell him to check for voltage between pins 'A' and 'B' on the connector on the A/C pressure switch. there should only be voltage between those two pins when the control panel is in a position to use the compressor(ie- not in "OFF" or one of the heater/vent settings)
08-17-2005, 09:03 PM
#6
TECH Addict
iTrader: (6)
Join Date: Dec 2001
Location: sojourning....looking for my city whose builder and maker is God.
Posts: 2,028
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by slyws6
...I sold my 99 WS6 to a guy in Charleston not too long ago. Right before I sold it I had the AC system serviced by a whole in the wall shop here in town. Well come to find out we think they put a ground wire from the AC Relay to the body making the compressor run non stop. The guy I sold it to took it to Firestone and had the AC compressor replaced since it fried a few days after I sold it to him. Now it's gone through 5 ac compressors!! The kicker is when they remove that wire the AC will never kick on when it's fully serviced thus something isn't right. Anyone have any idea's??
-Sly
-Sly
Did you ever get it working right?
08-17-2005, 09:33 PM
#7
TECH Regular
Join Date: Sep 2004
Location: Raleigh, NC
Posts: 404
Likes: 0
Received 0 Likes
on
0 Posts
Do the cooling fans run all the time as well? If they do the shop probably messed with the high pressure switch and did not put it back right when they got the system charged.
A jumper wire in the low pressure sensor connector could make the compressor run all the time as well.
A jumper wire in the low pressure sensor connector could make the compressor run all the time as well.
