P

paclx

Member
I recently recharged my A/C on my 97 P38 as it wasn't blowing cold after not being used during the winter, and the compressor wouldn't engage. There was still some gas inside the system according to the low pressure gauge, so I topped it up. I now have cool air, but noticed that (a) the low pressure pipes don't get really cold (visible moisture accumulation) and (b) the compressor clutch doesn't disengage. I've cleaned the connectors on the two switches to make sure they are getting good contact.

Any ideas??

Thanks.
 
Yes, use the aircon all year round when it's fixed to stop things seizing up. It also keeps the interior dry thus protecting the BECM.
Does the clutch disengage when you press the off button? If not, check the relay if it's a post 98 car, for pre 98 check the output from the HEVAC,
Maybe just the compressor clutch has rusted due to lack of use.
 
If the aircon is turned on why would you want the compressor to disengage? If it disengages when aircon is turned off what is the problem?
 
paclx said:
i thought the compressor clutch cycled on and off during operation. is that not correct?
Click to expand...

No it runs constantly whilst the aircon is working. It will however cut off on refrigerant over pressure.
 
wammers said:
No it runs constantly whilst the aircon is working. It will however cut off on refrigerant over pressure.
Click to expand...
It cycles on mine except in very hot weather when it remains engaged most of the time. Easy to detect as you hear the engine note change as the clutch engages.
 
Datatek said:
It cycles on mine except in very hot weather when it remains engaged most of the time. Easy to detect as you hear the engine note change as the clutch engages.
Click to expand...

Don't think it will be disengaging to often in Hong Kong. :);)
 
Yes, Hong Kong. it's not so much the heat, though we are heading for the summer, it's the 95% humidity. Petrol is more expensive over here than UK, so I try not to use the A/C during the cooler months.
 
paclx said:
Yes, Hong Kong. it's not so much the heat, though we are heading for the summer, it's the 95% humidity. Petrol is more expensive over here than UK, so I try not to use the A/C during the cooler months.
Click to expand...
AC makes the best part of bugger all difference to fuel consumption on mine here in France in summer when it's mid 30's C, may be more noticeable where you are but id doubt it.:)
 
You must log in or register to reply here.

Similar threads

C
Freelander 2 (LR2) A/C compressor clutch
Replies
1
Views
1K
Craig_mate
C
R
Freelander TD4 starting problems
Replies
5
Views
1K
TAll13
T
Backstop
Freelander TD4 Air Con issue
Replies
4
Views
2K
Nodge68
Nodge68
2
TD5 110 INTERMITTENT POWER LOSS
Replies
9
Views
3K
2004stationwagon
2
Rob4x40
L322 TD6 transmission adventures
Replies
13
Views
3K
badfluffy
badfluffy