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No valve in high line?

danf01 on Sat June 07, 2008 10:15 AM User is offline

Year: 2001
Make: Pontiac
Model: Grand Am
Engine Size: 2.4L
Refrigerant Type: 134A

Hey guys, after adding a little 134 on this car I noticed that when I removed my QD from the high line gas was coming out. Didn't seem at 200-250psi but it was clearly coming out. Does a cap w/a O-ring seal this thing?

GM Tech on Sat June 07, 2008 10:57 AM User is offline

yes

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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......

danf01 on Sun June 08, 2008 5:32 PM User is offline

Theres no Schrader valve in the high side port?

Only the cap w/washer is the only seal?

danf01 on Tue June 10, 2008 4:40 PM User is offline

anybody? Hard to believe theres no Schrader valve in a high side port

01 Pontiac GrandAM 4 cyl

Chick on Tue June 10, 2008 5:57 PM User is offlineView users profile

On GM cars with 'replaceable" high side ports, the shrader valve is replaced with a "teflon" ball, but it seals as a shrader valve would. I usually change them with an ac service because of having them stick open. This pic is from a Ford, but should look the same inside
To change the "shrader valve" you would change the whole port..



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Chick
Email: Chick

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Freedoms just another word for nothing left to lose

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