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Re: Service Brake Booster
If you hear hissing when pressing the brake, your brake booster has a leak and needs replaced- simple as that.
It is not too bad a job- but the brake light switch "keeper" is a real PITA to get off- you will have to bend it off or break it, the go to dealer toget a new one-- be sure to get all the pieces of the old one out of the groove before installing the new one.
Also, it is a lot of laying on your back under the brake pedal-- but no need to take any brake lines off- just pull master cylinder away from booster underhood..
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Automotive A/C Engineer with:
'99 IH 4700 Toy Hauler
(2) '95 GEO Prizms both maroon
'99 GMC Yukon
'95 Chev 3500, 454 Dually Crew Cab- 145k miles-
Wife's Camel trailer puller.
'94 Astro- 370k miles
'94 Firebird Formula- 5.7L 180k miles- gone-
'92 Chevy Lumina Van 3.8L 264k
'86 GMC S-15 - 2.8L 154k
'87 Buick Park Ave . 187k
'86 Buick Park Ave 3.8L 199k miles- gone
'77 Chevy Vega- 2.5L 175k miles gone but not forgotten
'68 Camaro 396 4 spd RS/SS -72k miles-
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