Riv Performance
Would you like to react to this message? Create an account in a few clicks or log in to continue.

The 8th Gen Riviera Resource
 
HomeDashboardLatest imagesSearchRiviera Questions & AnswersWrite-Ups IndexRegisterRelated LinksLog in

 

 A/C pressure?

Go down 
3 posters
AuthorMessage
Mikel
Enthusiast



Name : Mikel
Age : 47
Location : New Haven, CT
Joined : 2009-07-12
Post Count : 157
Merit : 2

A/C pressure? Empty
PostSubject: A/C pressure?   A/C pressure? EmptySun Aug 30, 2009 4:00 pm

Hello,
I just recharged the A/C in my friend's 98 Riviera. The compressor wasn't turning on. I added some R134A and the compressor is now spinning. We got some cold air for a brief time (low pressure line was very cold), but now while it is still spinning, the low pressure line is not cold and there are no signs of cold air anywhere. The low pressure side port reads about 35 PSI with the compressor turning.
Any ideas?
Thanks,
Mikel
Back to top Go down
Rickw
Guru



Name : Rick
Location : Lancaster, MA
Joined : 2008-09-13
Post Count : 6282
Merit : 119

A/C pressure? Empty
PostSubject: Re: A/C pressure?   A/C pressure? EmptySun Aug 30, 2009 4:31 pm

What about the High Pressure side?
Back to top Go down
Mikel
Enthusiast



Name : Mikel
Age : 47
Location : New Haven, CT
Joined : 2009-07-12
Post Count : 157
Merit : 2

A/C pressure? Empty
PostSubject: Re: A/C pressure?   A/C pressure? EmptySun Aug 30, 2009 5:07 pm

Rickw wrote:
What about the High Pressure side?

The cheap can with gauge I bought doesn't have a fitting that fits the high side frown
Back to top Go down
Rickw
Guru



Name : Rick
Location : Lancaster, MA
Joined : 2008-09-13
Post Count : 6282
Merit : 119

A/C pressure? Empty
PostSubject: Re: A/C pressure?   A/C pressure? EmptySun Aug 30, 2009 5:40 pm

Can't do much diagnosis without knowing both Low and High side pressure.
If you don't have an A/C gage set up for R-134 you might want to have a shop put some gauges on it and see what's up.
Although if you want to add valuable diagnostic tool to your toolbox it would be worth having even an inexpensive gauge set-up.
I still have the set I bought over 20 years ago for R-12 and adapted it for R-134, worth having in my opinion.
Back to top Go down
Mikel
Enthusiast



Name : Mikel
Age : 47
Location : New Haven, CT
Joined : 2009-07-12
Post Count : 157
Merit : 2

A/C pressure? Empty
PostSubject: Re: A/C pressure?   A/C pressure? EmptySun Aug 30, 2009 7:20 pm

I might be able to borrow one... Thanks.

Rickw wrote:
Can't do much diagnosis without knowing both Low and High side pressure.
If you don't have an A/C gage set up for R-134 you might want to have a shop put some gauges on it and see what's up.
Although if you want to add valuable diagnostic tool to your toolbox it would be worth having even an inexpensive gauge set-up.
I still have the set I bought over 20 years ago for R-12 and adapted it for R-134, worth having in my opinion.
Back to top Go down
woggy
Enthusiast
woggy


Name : Paul
Age : 62
Location : Altoona, Florida (Somewhere in the ocala national forest)
Joined : 2009-04-28
Post Count : 201
Merit : 7

A/C pressure? Empty
PostSubject: Re: A/C pressure?   A/C pressure? EmptyMon Aug 31, 2009 10:20 am

more than likely the pressure in the high side is way too high, over 250psi. If thats the case replace the orfice tube. this is a very common problem.
Back to top Go down
Mikel
Enthusiast



Name : Mikel
Age : 47
Location : New Haven, CT
Joined : 2009-07-12
Post Count : 157
Merit : 2

A/C pressure? Empty
PostSubject: Re: A/C pressure?   A/C pressure? EmptyMon Aug 31, 2009 10:55 am

woggy wrote:
more than likely the pressure in the high side is way too high, over 250psi. If thats the case replace the orfice tube. this is a very common problem.

The compressor does kick in, meaning that a minimum of pressure is there, so some cooling should be taking place. I'll try to get some gauges to confirm. Thank you.
Back to top Go down
Sponsored content





A/C pressure? Empty
PostSubject: Re: A/C pressure?   A/C pressure? Empty

Back to top Go down
 
A/C pressure?
Back to top 
Page 1 of 1
 Similar topics
-
» FAQ: New Riviera Buyer Questions
» Tire pressure ?????
» To much fuel pressure
» Appropriate tire pressure
» Oil pressure way too high

Permissions in this forum:You cannot reply to topics in this forum
Riv Performance ::   General Tech :: Interior-
Jump to: