AC was not working when i got the truck. broken line, probably a bad pump. so,
I replaced all the under hood AC stuff. New lines, Pump, Condenser, Orifice tube, Dryer. Flushed rear lines until nothing came out after flushing with compressed air.
Pulled vacuum to about 30. let sit for 24 hours and all good. Charged it with proper amount of oil and R134A, 3Lb 8oz
AC blows cold when the system is on both front and rear.
AC Clutch will not engage unless i jump it at the pump with 12v or jump it at the relay. Fuse is good.
It will not turn on if i jump across both pins on the low pressure switch on the dryer.
If i jump the high pressure switch? at the compressor it does not come on but the AC fan on the condenser comes on.
When i check both pressure switches with a trouble light none have power. I think the low pressure should have power??
When i turn the AC switch on at the dash to max the recirc light and ac light both come on and the blend door for the heater blower moves.
Where does the power come from for the low pressure switch on the dryer?
Could it be a bad ac switch at the dash even though it does light up?
I replaced all the under hood AC stuff. New lines, Pump, Condenser, Orifice tube, Dryer. Flushed rear lines until nothing came out after flushing with compressed air.
Pulled vacuum to about 30. let sit for 24 hours and all good. Charged it with proper amount of oil and R134A, 3Lb 8oz
AC blows cold when the system is on both front and rear.
AC Clutch will not engage unless i jump it at the pump with 12v or jump it at the relay. Fuse is good.
It will not turn on if i jump across both pins on the low pressure switch on the dryer.
If i jump the high pressure switch? at the compressor it does not come on but the AC fan on the condenser comes on.
When i check both pressure switches with a trouble light none have power. I think the low pressure should have power??
When i turn the AC switch on at the dash to max the recirc light and ac light both come on and the blend door for the heater blower moves.
Where does the power come from for the low pressure switch on the dryer?
Could it be a bad ac switch at the dash even though it does light up?