Major Ecoboost repair, long delays

theoldwizard1 wrote:

Groover wrote:

Oh yeah, the electric vacuum pump seems to be there in case you need to apply the brakes while the turbo charger has the intake manifold pressurized. So it connected to the manifold via the brake vacuum booster and debris can be sucked through. Apparently, failures of the electric pumps are not uncommon. The amount of damage that my daughter's truck suffered is. That is what the mechanic told us but based on some other issues that have come up I don't put a lot of stock in what that guy told us but the bottom line is that I still need a good engine.

Yes, vacuum can travel from the pump to the intake, but I can not understand the failure mode of the pump that could damage the engine ?

FYI, my 2022 F150 2.7L EcoBoost has electric power assist brakes and electric power assist steering.

That is what the mechanic told us. I don't want to call him a liar but I have not been able to find this pump or even a vacuum hose going to the area where he said it was. Unfortunately, it is my daughter's truck and since she had picked out this shop and arranged the first repair she thought that it was appropriate for her to see it through. She is brilliant in several fields but mechanics isn't her strong point. It is possible that she misunderstood what the mechanic said. It is also possible that he just made up a story to justify billing her for a botched job.

I do know that both of my Ecoboost engines have vacuum boost for manual brake applications with electric braking for computer activated brake situations, like collision avoidance or ABS adjustments. I would bet that you still have a vacuum canister right behind the master brake cylinder.