Another AC Puzzle....

coolasice

Original poster
Member
Oct 27, 2013
1,019
Northern Maine
ok, so got my manifold gauge set today and hooked it up to check ac pressures... none at all. nothing on either high or low side. ... So i hooked up the vacuum pump and pulled a -20 Vacuum... has been holding for over an hour... so where the hell did my refrigerant go? Any ideas on this one?
 

coolasice

Original poster
Member
Oct 27, 2013
1,019
Northern Maine
nevermind... im a fool... tightened up my hoses too tight to the manifold and they were blocked by the orings....
 

Sparky

Member
Dec 4, 2011
12,927
Heh, well at least it was something simple!
 

coolasice

Original poster
Member
Oct 27, 2013
1,019
Northern Maine
lol yea... but I am low on r134... gotta get a small can and fill her up for now, I have to try to find some with the leak dye....
 

meerschm

Member
Aug 26, 2012
1,079
look at the bright side, you got the air out of your new hoses.
 

glfredrick

Member
Jan 14, 2014
172
If you have a Big Lots store near you, they have 134a for about $5.50 a can. I just bought a few. They don't show up on their web site, but my local store had some on the shelf.
 

coolasice

Original poster
Member
Oct 27, 2013
1,019
Northern Maine
put both cans in... air now 45F coming out of the vents now... guess she was low
 

coolasice

Original poster
Member
Oct 27, 2013
1,019
Northern Maine
i bought it at local orileys... it was either 2 cans at 20ea, or 2 cans at 12ea plus 16 for dye... much easier for me to just use the cans with it included.
 

coolasice

Original poster
Member
Oct 27, 2013
1,019
Northern Maine
OK... Pressure fine, ac cold as hell when moving... But let it sit and idle in 90° weather and the ac performance suffers turning air warm. Get moving again and it goes back cool... Any ideas on this?
 

coolasice

Original poster
Member
Oct 27, 2013
1,019
Northern Maine
Its an 08, has old school viscus clutch that is working properly as far as I can tell. Does not overheat.
 

Sparky

Member
Dec 4, 2011
12,927
My 02 would do that when it got real hot outside.Simply giving the engine a slight bit of gas to raise the RPM slightly would help as that provided more RPM for the fan to work with.
 

coolasice

Original poster
Member
Oct 27, 2013
1,019
Northern Maine
Its a pain... I watched the ac outlet temp go from about 55 and slowly climb to around 73 in 10 mins at idle.... Quick romp around the parking lot and it was down to 62...
 

KNBlazer

Member
Feb 8, 2012
811
I recently sprayed my condenser with AC coil cleaner, although I notice AC blows cold a lot quicker, I haven't been able to test it in hot weather... Haven't gotten past 75 degrees for almost 6 weeks...
 

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