1989 f250

[lsmith33]

ok well i got an 89 f250 with a 351 windsor in it an i know its low on freon. does anyone know how many lbs these motors hold??? thanks

[dereku]

Well I would take a guess and say it is not freon or r12 it is most likely r134a

You can get a fillup thing from the parts store with a gauge and it will tell you when to stop.

[ididntdoit5150]

just did it today on a buddies 90 with the 460ci. we went to pep boys today and as dereku said we got a can of r134a refrigerant with a gauge. we filled it and it the ac got cool, not cold just cool for about 10 minutes, after that it went right back to hot. anyone know what it could be?

[helsel_182]

could be leaking out or you might have a week compressor..... i do auto ac for a living and there are alot of things that can be wrong but it sounds like a leak.....