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08-12-2006, 09:19 PM
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#1 |
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Senior Member
Join Date: Jan 2002
Location: Vienna, Ohio, USA
Posts: 259
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P/B Problem
Got my brake system back together, pressure bleed the brakes, my pedal is nice and firm. When I start the engine the pedal goes soft. When I pump the pedal the power booster seems to be leaking air out the rear where the rod from the pedal goes in. Also I notice the engine idle changes when I depress the pedal. Is my booster bad or could it be something else?
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72 Chevy A/C P/B P/S Tilt 454 Engine 400 TCI Trans C30 Frame C10 Suspension Short Wheel Base (Dually) |
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08-12-2006, 09:38 PM
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#2 |
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Registered User
Join Date: Nov 2003
Location: Alexandria, VA
Posts: 1,534
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Re: P/B Problem
You guessed correctly, your booster is leaking. Napa has them for our trucks for about 130 bucks.
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'72 GMC SWB C1500 Custom, frame-off in progress. 383 SBC, 9:1CR, Comp Cams XE262H, Scat internal balanced crank, Eagle SIR 6" rods, Keith Black dish pistons, Dart Iron Eagle 72/180 heads, Weiand Stealth intake, Stewart stage I water pump, Holley 4bbl vac sec, TH350 with B&M Shift Improver Kit. 12 bolt positraction.   
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08-12-2006, 11:06 PM
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#3 |
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its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,690
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Re: P/B Problem
Agreed. Don't bother with used ones. it may be good today, but I'll bet a kick in the daddy parts it'll go bad fairly soon.
I lost an engine to a bad booster. A massive vaccume leak on an already lean motor pulling a hill at 4000 RPM = boom. |
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08-13-2006, 09:47 AM
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#4 |
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Senior Member
Join Date: Jan 2002
Location: Vienna, Ohio, USA
Posts: 259
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Re: P/B Problem
Thanks guys!!!!!!
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72 Chevy A/C P/B P/S Tilt 454 Engine 400 TCI Trans C30 Frame C10 Suspension Short Wheel Base (Dually) |
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