Automotive Air Conditioning Information Forum (Archives)

Provided by www.ACkits.com

We've updated our forums!
Click here to visit the new forum

Archive Home

Search Auto AC Forum Archives

very cold ambient

mak11 on Wed December 17, 2008 11:37 AM User is offline

Year: 1995
Make: Ford
Model: Taurus
Engine Size: 6 cyl
Refrigerant Type: R134
Ambient Temp: 42

What difficulties will I run into when trying to recharge a system in 42 degree temp?

Thanks

GM Tech on Wed December 17, 2008 12:24 PM User is offline

As long as your tank or can(s) are warm- the refrigerant will flow with ease- you can put in the whole charge without even starting the system---The car's a/c will probably not have enough system pressure to make the low pressure system cut-off switch-or if it has outside temp sensor on a digital climate control- it won't allow a/c usually anything below 40 degrees- so do you intend to see if compressor comes on? or just want to charge it to get it over with?

I did one the other day for my buddy who replaced jis condenser on a 2002 suburban- I charged it in about 45 seconds- it was about 40 degrees outside and in my shop (doors were open) and the compressor never did come on- but it would if and when the truck sees warmer weather- he was happy- so was I- after I told him what to expect. It's no big deal if you charge by weight like I always do-- now if you charge by pressures- then you are in for trouble- you need to be sure to have some way of measuring in the specified amount of refrigerant.

-------------------------
The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......

mak11 on Wed December 17, 2008 2:32 PM User is offline

GM Tech
Thanks for the reply.
It completely solved my problem!
Martin

mak11 on Wed December 17, 2008 2:43 PM User is offline

Just one more thing.
To charge by weight using a 30LB cylinder,
Do you use some kind of special set of scales to put the cylinder on to measure how much goes out ?
or is it best to just use 12 oz cans in cold weather?
Thanks

Matt L on Wed December 17, 2008 2:54 PM User is offline

Something like this?

http://www.ackits.com/merchant.mvc?Screen=CTGY&Store_Code=01&Category_Code=Accucharge

mak11 on Wed December 17, 2008 3:46 PM User is offline

Matt L
That answered my question.
Thanks

Back to Automotive Air Conditioning Forum

We've updated our forums!
Click here to visit the new forum

Archive Home

Copyright © 2016 Arizona Mobile Air Inc.