Ar rkv 4g40
I hope it's the unloader. I'm waiting for one in the mail. I took apart the old one and really gave it a good cleaning and it didn't make a difference. Can a bad unloader cause heavy loading of the motor without making pressure and volume? ....I hope the motor is OK. The washer is a Porter Cable PCK4040SP. The pump is AR RKV4G40..(4gal. & 4000psi @ 3400rpm). The unloader should be here soon and I will post my results .