Engine hesitating when pumping brakes

[ired44]

Hey guys sorry I had to make a new thread for this....I searched for this in many different ways and couldnt find anything. If I pump my breaks repeatedly my engine starts to hesitate. This started happening after I changed the strut on the drivers side...never noticed it before that. Any info on this would be really appreciated. Thanks guys.

[Vanilla Sky]

Does your brake pedal hit the floor? Other than it dropping revs, is everything else normal feeling?

I'd check for a vacuum leak. Very easy when messing around in that area.

[jasonrebellion]

yeah my guess would be a vacuum leak also.....theres a few hoses on that side that'll cause that

[2oodoor]

remove the large vacuum hose going to the brake booster and plug it off engine side

If that cures the hesitating then you either have another vacuum draw somewhere or the booster check valve is not working well