beady
Full Access Member
- Joined
- Jul 20, 2024
- Posts
- 90
- Reaction score
- 33
- Location
- Tidewater/Northern Neck VA
- First Name
- Mine
- Truck Year
- 1987
- Truck Model
- R20
- Engine Size
- 454
So I’m replacing most the the AC stuff in my ‘87 suburban R20 with rear air. Condenser, front evaporator, compressor, dryer, rear expansion valve, etc. Basically everything except lines and rear evaporator currently.
I took off the rear expansion valve from the evaporator, and it looks pretty nasty inside. I have like a gallon of AC flush and the kit to blow it through the lines, but seeing how gunky the expansion valve looks I’m not sure a one time flush blow through is going to cut it to clean the lines.
Can I just plug the engine bay ends of the lines and use a little funnel and fill the lines from the rear to the front so they soak? Then blow it all down after soaking? O do I risk damaging the hoses (rear AC remember) by prolonged exposure to the solvent?
Thanks,
Mike
I took off the rear expansion valve from the evaporator, and it looks pretty nasty inside. I have like a gallon of AC flush and the kit to blow it through the lines, but seeing how gunky the expansion valve looks I’m not sure a one time flush blow through is going to cut it to clean the lines.
Can I just plug the engine bay ends of the lines and use a little funnel and fill the lines from the rear to the front so they soak? Then blow it all down after soaking? O do I risk damaging the hoses (rear AC remember) by prolonged exposure to the solvent?
Thanks,
Mike
