iHateVolvoPeople
Active member
- Joined
- Feb 1, 2014
- Location
- Midwest
1989 245. Has an r134 low side fitting inline above the exhaust manifold. Not sure if that line is stock or not.
The 2 green compressor/drier wires were wrapped around the steering column and snapped. Need to check those for 12v. Anyway, charged the system to about 85psi (85F outside) and manually ran the compressor via 12v jumper at the battery. The condenser got pretty warm and the in-line filter (whatever black canister is in front of the condenser by the grill) was very hot; about 160F according to the IR thermometer. Nevertheless, vent temps were about ambient. Any idea why? Not sure why I get sucked into diagnosing everyone’s ac system but I am NOT ac proficient at all.
TL;DR ac no cold. Charged it; manually ran compressor and vent temps were still warm. Condenser and in line filter were both warm so the compressor is compressing at least a little bit.
I would assume that replacing the receiver drier is a minimum, as well as maybe the inline filter and orifice tube. Btw, the 740s vent temps are about 38-40F driving down the highway on a 100F day, so I’m doing something right.
The 2 green compressor/drier wires were wrapped around the steering column and snapped. Need to check those for 12v. Anyway, charged the system to about 85psi (85F outside) and manually ran the compressor via 12v jumper at the battery. The condenser got pretty warm and the in-line filter (whatever black canister is in front of the condenser by the grill) was very hot; about 160F according to the IR thermometer. Nevertheless, vent temps were about ambient. Any idea why? Not sure why I get sucked into diagnosing everyone’s ac system but I am NOT ac proficient at all.
TL;DR ac no cold. Charged it; manually ran compressor and vent temps were still warm. Condenser and in line filter were both warm so the compressor is compressing at least a little bit.
I would assume that replacing the receiver drier is a minimum, as well as maybe the inline filter and orifice tube. Btw, the 740s vent temps are about 38-40F driving down the highway on a 100F day, so I’m doing something right.