a/c schrader valve guts - Ford Explorer Ranger Enthusiasts "Serious Explorations"®

justanother1 · 07-17-2006, 05:44 PM

I have changed a fitting my (87 cougar) a/c that has been converted over to R134A a few years ago but the guts in the other connection are leaking/bubbling. Are the guts the same as a tire valve stem or are they different?

I put 2 12oz cans and stopped because the gauge that came in the kit showed that I was in the correct level. Today on the way home from work, the a/c didn't work very well. It blew cold and then changed to warm air and back and forth. I think that I need to add more. I didn't use a vacuum pump to evacuate the system because I don't have access to one.

shamaal · 07-17-2006, 06:58 PM

Yes, the schrader valve is like the one on tires. The core can be replaced, the autostores have kits in the A/C section. There are even tools that allow the core to be changed without discharge the system. I suspect they cost more than the refrigerant.

The R12 - R134a adapter, on the other hand, is an extension only and not sealed. They also are adjustable.

**Glacier991** · 07-17-2006, 08:50 PM

I think my core replacement tools that let you change out the valve core on a fully charged system ran around $50. While the schrader valves are "like" the ones on tires, they are a slightly different size. Larger.

07-17-2006, 05:44 PM	#1
justanother1 Wannabe Elite Explorer Dover, PA 96 XLT; 97 XLT Join Date: Apr 2004 Posts: 66 Vehicle Specs	a/c schrader valve guts I have changed a fitting my (87 cougar) a/c that has been converted over to R134A a few years ago but the guts in the other connection are leaking/bubbling. Are the guts the same as a tire valve stem or are they different? I put 2 12oz cans and stopped because the gauge that came in the kit showed that I was in the correct level. Today on the way home from work, the a/c didn't work very well. It blew cold and then changed to warm air and back and forth. I think that I need to add more. I didn't use a vacuum pump to evacuate the system because I don't have access to one.

07-17-2006, 06:58 PM	#2
shamaal Wannabe Elite Explorer Friensdwood, Texas 91 Mazda Navajo Join Date: Apr 2005 Posts: 1,307 Vehicle Specs	Yes, the schrader valve is like the one on tires. The core can be replaced, the autostores have kits in the A/C section. There are even tools that allow the core to be changed without discharge the system. I suspect they cost more than the refrigerant. The R12 - R134a adapter, on the other hand, is an extension only and not sealed. They also are adjustable.

07-17-2006, 08:50 PM	#3
Glacier991 EF Tranny Guru Sacramento, CA 95827 1992 XLT Join Date: Feb 2003 Posts: 9,779 Vehicle Specs	I think my core replacement tools that let you change out the valve core on a fully charged system ran around $50. While the schrader valves are "like" the ones on tires, they are a slightly different size. Larger.