Ford Repair Questions? Ask a Mechanic for Answers ASAP
Hi I'm Joe! I think I can help you with this issue but first can I ask why the booster as replaced originally? and do you still have access to the one you removed?
More than likely it was the original. I can't think of any ID markings on even the OE ones. I say "most likely" because in my locale it is somewhat uncommon for a vacuum booster to fail without fluid and rust playing a large part. Are you are were you able to compare the new and old part side by side? and is the new part "motorcraft"? and if so is it ford's motorcraft or autovalue's motorcraft?
I think you may want to get with the ford dealer with a vin number for this part. My parts window shows me four different options, all left hand drive (I'm assuming that you're in the US.) They are categorized by "feature content group" 1 or 3. I'm not sure if the other two pictured are just old part numbers but I assume so because it only gives me two different prices. The only adjustment that should be made here is to assure that the pushrod is not causing drag by staying applied so I'm guessing that you more likely got the wrong one of what looks like two different parts. Good luck!
I'm kind of at a loss here then. It seems like it should be something simple but I'm drawing a blank without having the thing in front of me. I'll opt out so someone else can chime in. Good luck!
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In some cases I have and seen others where they disconnected the brake rod from the pedal and either messed with the brake on off switch and or pulled the pedal to far up and this caused the brake switch to no longer function correct. Remove the brake switch and work it in hand to see if it works as it should as well as look at how its mounted to see if its in fact getting pressed while mounted but not braking.
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I would have to measure a new switch in hand to see that. It is not posted info in Ford repair guides.