All water pumps fail at some point, keep this in mind.... But not all water pumps are vacuum controlled/activated. Why not remove the vacuum and have the water pump function as a standard water pump like the one on OM642 engine?
Yes either way I'd be removing the vacuum. I'm going to leave water pump in place and hope for long life. I just sent funds to Vlad for the emission deletes and the vacuum error code block.
And how’d it go? How’s she running?
Very happy with how it's running. Hesitation is gone and I had an exhaust noise that was introduced after the emission recall work, which was super annoying, and that's gone now too...but that may have been from the EGR delete not the tune.
And just to clarify my update included both the stage 1 tune and the EGR delete. The one negative about the update, and can't be sure if it's the EGR delete or the tune, is that when I shut off the motor, the shutdown is a little rougher.
One other positive...it seems as though the clunk, which I'm sure I have worse than most, when shifting into reverse, has improved. This would obviously be from the tune.
@Ivan Borisovich @Maslin This is my EGR on a 2019 van with 14K miles. The van has been jerking for over a year and had an instance of powerless (10-15 secs) on the freeway in this month. Took it to an independent shop and they scoped it and found this.
Scoped what orifice? I don’t recognize what we’re looking at.
Its the EGR cooler
How do you clean the EGR cooler and intake, though? Or do I not wanna know?
I imagine the 654 is the same, bloody plastic.
