That burns my A$$ cause that's what the dealer did after telling me the same thing. A pump regulator and 800 bucks later! It was on my 96 F250 PSD. I was spitt'n nails cause they had me due to my ignorance. It did fix the problem, but I doubt that it ever was now.
Oh and if the dealer try's that crap tell them they can deal with your attorney. If it's made specifically for the motor they can't null your warranty. They tried to do it to a lift I put on the same 96 F250 and pushed it until I refered them to a lawyer and they backed off.
Also I was talking to a vehicle transporter friend a couple of weeks back and he mentioned this being a common problem, but I didn't know what he was talking about, he said they used to jump them all together, but I did'nt have a clew so I had no comment. Can anyone confirm this working? Jumping it all together?