Brake Booster
#31
Registered User
Thread Starter
Well , boys I'm in the same boat or truck as some of ya'll. Have 90-d350 auto,brakes started getting hard to push, now it takes constrated effort to stop,and you better not let your acking knees relax ,,not even a little . New vaccum booster,new m/c,,bleed breaks ,,vaccum line from pump will suck to your thumb like a leech,,still have to apply hard pressure,,( man I only weight 170) , yesterday had to do a 340 mi. trip through some mtns.,my (stork like legs) legs are sore today.This ol' truck use to stop w/ a light pedel. What ya'll think ,where do I go from here????
whosdunit.
whosdunit.
#32
Registered User
Hey, Martin, heater controls work ( a/c),used cruse control yesterday (some) brake light has been on since i'v owned this o'l truck ( bought in 09) brakes have always been really excellent , can't find a vac., leak ( I can't hear a bear roar),. First thought it was the booster took it off the rod on the booster slid out ,,,along with some ugly rusty ,yellowish liquid,soooo put on new booster,,,no improvement,next ,new master cyl.,,,noimprovement,,next bled all the brakes,,no improvement????? You think the new booster is factory bad, how do I ck it for sure.
whosdunit.
whosdunit.
#34
Registered User
they release,,back to full peddle. The peddle moves down 3/4-1" ,( which feels normal),but it sure takes a hard push to stop,,the peddle stops 1 1/2-2" off the floor( normal) ,,let off any amount ,,,your roll'n. I checked boost to m/c measurement ,even though it is suppose to be pre set on the new boost,,it's good. Sure got me stumped,,for now.
Thanks for reply's
whosdunit.
Thanks for reply's
whosdunit.
#35
Administrator
Well , boys I'm in the same boat or truck as some of ya'll. Have 90-d350 auto,brakes started getting hard to push, now it takes constrated effort to stop,and you better not let your acking knees relax ,,not even a little . New vaccum booster,new m/c,,bleed breaks ,,vaccum line from pump will suck to your thumb like a leech,,still have to apply hard pressure,,( man I only weight 170) , yesterday had to do a 340 mi. trip through some mtns.,my (stork like legs) legs are sore today.This ol' truck use to stop w/ a light pedel. What ya'll think ,where do I go from here????
whosdunit.
whosdunit.
#36
Registered User
Thread Starter
they release,,back to full peddle. The peddle moves down 3/4-1" ,( which feels normal),but it sure takes a hard push to stop,,the peddle stops 1 1/2-2" off the floor( normal) ,,let off any amount ,,,your roll'n. I checked boost to m/c measurement ,even though it is suppose to be pre set on the new boost,,it's good. Sure got me stumped,,for now.
Thanks for reply's
whosdunit.
Thanks for reply's
whosdunit.
Offhand, I'd say you either have a bad booster or well oiled brakes.
#38
Registered User
YEP!!! my "NO BRAKES" problem bad new booster,swaped out for another new( rebuild) booster,WOW!!!! We got brakes ,,just touch the peddle with your toe,,wham,,instant stop. Thank's' for all the replys .
whosdunit.
whosdunit.
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