airconditioning

[brewster1950]

Hi guys been awhile I got some promblems with the air in my 99 silverado I put test gauges onit clutch is going around on compressor my readings are 45for low side and 125 for high factory #s are 44 low and 205 high how do I reach that level with out scewing up I know to put freon in it but it just seems like these numbers are real close maybe close isn't good enough the darn thing blows hot air not cool hot I checked the condenser and cleaned it some thing screwy going on here I read some post from hanible and he seems to know alot. my truck has 157.000 miles on it it still looks and drives likenew its a z-71 collectors editon black 3 door black with gray leather also " hanable " said he new how to make a vacumm pump out of old fridge compressor I would sure like to have that info maybe I would fix my kids cars air to well I hope some of you guys can help thanks alot brewster

[MT-2500]

Originally Posted by brewster1950

Hi guys been awhile I got some promblems with the air in my 99 silverado I put test gauges onit clutch is going around on compressor my readings are 45for low side and 125 for high factory #s are 44 low and 205 high how do I reach that level with out scewing up I know to put freon in it but it just seems like these numbers are real close maybe close isn't good enough the darn thing blows hot air not cool hot I checked the condenser and cleaned it some thing screwy going on here I read some post from hanible and he seems to know alot. my truck has 157.000 miles on it it still looks and drives likenew its a z-71 collectors editon black 3 door black with gray leather also " hanable " said he new how to make a vacumm pump out of old fridge compressor I would sure like to have that info maybe I would fix my kids cars air to well I hope some of you guys can help thanks alot brewster

Low side is to high and high is to low.
Expansion tube or weak compresser.
What are the low and high readings at 2500 rpm.
If not much better pull the orfice tube and check for a lot of trash if a lot of trash usually it is compresser trash.
If clean replace it and evccate system and check oil and recharge to proper amount of charge and see what it does.
If a reto fit to r-134 hold the r-134 charge down 10-15 percent.
Let us know how it goes.
MT

[kenwood guy]

Originally Posted by brewster1950

Hi guys been awhile I got some promblems with the air in my 99 silverado I put test gauges onit clutch is going around on compressor my readings are 45for low side and 125 for high factory #s are 44 low and 205 high how do I reach that level with out scewing up I know to put freon in it but it just seems like these numbers are real close maybe close isn't good enough the darn thing blows hot air not cool hot I checked the condenser and cleaned it some thing screwy going on here I read some post from hanible and he seems to know alot. my truck has 157.000 miles on it it still looks and drives likenew its a z-71 collectors editon black 3 door black with gray leather also " hanable " said he new how to make a vacumm pump out of old fridge compressor I would sure like to have that info maybe I would fix my kids cars air to well I hope some of you guys can help thanks alot brewster

I think you should add some more in then take pressure reading again if that does not help then it might just be the compressor weak discharge pressure will not compress the refrigerant required to create subcooling on the high side(needs to turn back to liquid before entering your expansion tube)

[wrparks]

Smartass post of the week. Take the two buttons on the dash off of red and go to blue. Sorry couldn't resist, but yea, I agree with the MT. Sounds like the compressor is weak. And boy, are they cheap.

[MT-2500]

Originally Posted by brewster1950

Hi guys been awhile I got some promblems with the air in my 99 silverado I put test gauges onit clutch is going around on compressor my readings are 45for low side and 125 for high factory #s are 44 low and 205 high how do I reach that level with out scewing up I know to put freon in it but it just seems like these numbers are real close maybe close isn't good enough the darn thing blows hot air not cool hot I checked the condenser and cleaned it some thing screwy going on here I read some post from hanible and he seems to know alot. my truck has 157.000 miles on it it still looks and drives likenew its a z-71 collectors editon black 3 door black with gray leather also " hanable " said he new how to make a vacumm pump out of old fridge compressor I would sure like to have that info maybe I would fix my kids cars air to well I hope some of you guys can help thanks alot brewster

On the old fridge compresser you mat be able to do it but to save the hassel and time to make one here is a link to some good ones that will do the job done right and the cost is not that bad.
But if you live in canada better check your local laws on recharging first.
Good luck and let us know how it goes.
MT

Also the ACkits.com link will help you out on any problems and they have quality parts if needed.
http://www.autoacforum.com/

http://www.ackits.com/merchant2/merc...uct_Code=66773

http://www.ackits.com/merchant2/merc...e=DIY-STARTER1

http://www.ackits.com/merchant2/merc...ode=DIYADVANCE