the pump is flowin and i can see it through the sight glass. it doesnt blow cold. i put in new pump, expansion valve, refrigerant. any ideas?
I have a 93 camry 3.0. the a.c is not workin.i put refrigerant in it new pump new expansionvalve%26amp; it pumps.???
Hook up a manifold gauge set and tell us the high and low pressure readings. There are two possibilities:
1) The new compressor shredded itself during the recharge process, due to residual debris or the can was upside down sometime during charging. The high %26amp; low pressures will be equal or nearly so.
2) The new expansion valve (TXV) is clogged with debris and preventing the flow of refrigerant into your evaporator core. High side will be hot and only about 100psi higher than the low side.
Your old pump probably left behind debris in the system. You need to replace the pump and TXV again, but this time flush out the condenser and evaporator and lines first. Replace the accumulator and any hose assembly with an unflushable muffler or filter built in. Find out the PAG oil capacity and viscosity for your system - put 3 oz. in the new pump before installing it, and divide the remaining oil equally between the condensor, evaporator, and accumulator. Evacuate the system with a good 2cfm vacuum pump, you can rent or borrow one from the auto parts store. Pump down to -29" mercury for 20 minutes. Turn off the pump and make sure it holds vacuum for 10 minutes. Be sure to hold each can upright during charging, to avoid liquid refrigerant from flowing into the compressor and kissing it goodbye!
Good luck.
Reply:The flow you see does it look like bubbles? are the fans turning? Right! is there hot water running through the heater core? is the belt tension at the pump pulley correct? are the Eng. RPMs correct at Idle? is the condenser in front of the radiator clean and does it have good air flow?
Any or all of these can cause this problem.
Reply:blower motor could be clogged, the heater hose shut off might not be shutting off and hot water is still going thru the airbox, which will heat up the cold air,
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment