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12 or 134 ?

D.T. on Fri August 29, 2008 5:03 PM User is offline

Year: 1993
Make: Buick
Model: Le sabre
Engine Size: 3800
Refrigerant Type: ????

What type of refridgerant does this vehicle use?

The manual says either or, 2 lbs 134 and 2.4 lbs 12. The low side fitting is some sort of 1/4" flare hybrid new style fitting. I can get some 12 but I need to order the funny can tap for it since no on sells this stuff anymore.

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Too many questions, not enough answers....

TRB on Sat August 30, 2008 1:08 AM User is offlineView users profile

According to my data.

1993 used R12.

1994 used R134a.

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mk378 on Sat August 30, 2008 1:50 AM User is offline

If you have a flare type service fitting it should be R-12. Any stickers under the hood? Usually the compressor label will mention refrigerant type, also the accumulator, though the parts may not be original.

GM Tech on Sat August 30, 2008 8:27 AM User is offline

Guaranteed -OEM was R-12

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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......

Chick on Sat August 30, 2008 9:21 PM User is offlineView users profile

Just to add, the R12 fitting on the high side "may" be the deep throat fitting GM used for a couple years, your R12 gauges won't depress the valve core if it is, you will need the GM high side adaptor..Hope this helps..

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Chick
Email: Chick

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