Oh yeah this unit is a 96 with a GM 3.0 and has about 9000 hours on it. I suppose I just need to bite the bullet, pull the pump and tear it apart to see what gives. I just was hopeing for a quicker and cheaper (for the customer) repair. Any Info on the priority valve would be great. Hopefully thats all it is, I can replace the priority valve o-rings and get them back up and running.
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