AC pressure too high

[Racenut]

This is on a 86 b2 with a 2.9.

Trying to fix the AC. The compressor went out in it last year. Got a new dryer, orifice tube, and a remanned compressor. Put all on today. Pulled a vacuum, put one can of 134 in. Compressor started to cycle, but pressure is showing too high when compressor is not cycling. Compressor wont stay on . Pressure drops when compressor is on and then it turns off. I see some metal shavings between the pully and the outside clutch plate. Does this mean the compressor is bad?

Why is the pressure too high after only one can when the compressor is not cycling?
Thanks

 

[cvar]

I think you have a clogged condenser, or else a faulty pressure switch.
See page 94 in the Ford service manual here: ( http://visualbits.net/Ford%20Ranger%201993-1999/12%20CLIMATE%20CONTROL%20SYSTEM/12-00%20-%20Climate%20Control%20System,%20Service.pdf ) <== CLICK

Further chapters are here: ( http://visualbits.net/Ford%20Ranger%201993-1999/12%20CLIMATE%20CONTROL%20SYSTEM/ ) <== CLICK

 

[adsm08]

If you didn't have the system flushed out there is probably debris from the old compressor in it plugging things up, damaging and contaminating the new parts.

 

[BRUTUS_T_HOG]

How about some numbers. How much is too much.

Yeah I can bet you just destroyed all your new parts by not flushing the metal out. The condenser is not flush able and must be repalced

 

[adsm08]

The condenser is not flush able and must be repalced

Depends on the year of the vehicle and the flush equipment available. I haven't had a flushed condenser come back yet.

 

[armadillon]

Just my opinion, but there are two remanned items you should never purchase: water pumps and A/C compressors.

 

[BRUTUS_T_HOG]

Depends on the year of the vehicle and the flush equipment available. I haven't had a flushed condenser come back yet.

It can only be flushed if it's a serpentine design. I guess an 86 ranger should have a serpentine condenser. Been a while some working on any R12 systems