I guess NW Cummins is going to do my friend right. They are going to do a house call and replace the PS Pump, and flush all the motor oil out. Hard to believe people that do this every day for a living could make this kind of mistake.
No, it is not... I've been calling on various dealerships, sole proprietorships, and other automotive-related businesses on and off for over 30 years with both Snap On and Safety Kleen, not to mention my own experience as an ASE certified master tech.
I've found that, on average, the guys doing this sort of work don't always know what they are doing, don't always have the right tools for the job, most of the time do not understand the THEORY behind the parts (for real!) and in many cases do EXACTLY THE OPPOSITE of what would be considered "good practice" because their intent is to increase business by selling the customer on THEMSELVES so they come back for more work, which they generate by not doing things right.
The general ignorance in the general populace helps feed the problem, in my humble estimation. Joe Smiley service writer and his right hand man offer coffee, a waiting room with Oprah on the tube, all sorts of "professional automotive remakrs" about the problem with their vehicle, and a skill at "upselling" routine repairs while using shoddy parts for maximum profit. Mr. and Mrs. Consumer buy into this uniformed "expert" routine and meanwhile some dufus who just bought a set of $100 Crapsman tools is out back asking everyone else, "How do you get this thing-a-ma-jig off of this GD piece of crap," as they proceed to beat the parts to a pulp. Wish that I had not seen this with my own eyes for all these years, but alas, I've seen it WAY too often.
The true techs that actually GET IT are rare and treasured! Usually, in the hierarchy of things, the best ones start their own business, eventually, and generally do things on a one-off basis instead of working for stealerships, oil change places, mass-market tire change shops, transmission shops, etc. If there is even ONE tech in most of those shops who has a clue that shop is beyond average. Same for stealerships.