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Brake booster vacuum leak - what to look for 200 1984

posted by  Rhys on  Wed Feb 15 10:22 CST 2012
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last visit: Tue Nov 20 10:22 CST 2012
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With the engine idling, pinch the brake booster hose with pliers to close it down. If the idle speed changes ( drops ) then the booster is drawing air. It will have to be replaced. The check valve in the hose serves to prevent higher manifold pressure ( full throttle or a stall) from entering the booster and reducing assist. It's a safety feature, and isn't at fault.






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New Brake booster vacuum leak - what to look for [200][1984]
posted by  Lord Volvo subscriber  on Wed Feb 15 08:29 CST 2012 >


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