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Rollin with Saget
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1,595 Posts
Discussion Starter #1
im driving to work this morning and my brakes are sporadically coming and going. i get home this afternoon and i have to apply severe pressure to even make my truck start to slow down... let alone stop. plus there is a hissing sound coming from the power brake booster. im not sure what it is, but im leaning towards what i hope its not... either the master cylinder or the power brake booster.

ne1 else have this kind of problem?

the truck is an obs ext cab.... with just under 120,000 miles.
 

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internet bigot®
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4,016 Posts
you might have air in your system... if it comes and goes, your pressure sounds to be intermittent.
 

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Rollin with Saget
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1,595 Posts
Discussion Starter #3
thats what i thought as well.... until it completely went out. i drove for about 20 minutes with no pressure and an extremely stiff peddle (SP?).

thats why i seem to think its either the booster or cylindar
 
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