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Vacuum pump to check brake booster?

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Old

Jun 30, 2002 | 07:31 AM

#1

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Joined: Jun 2002

Posts: 564

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From: MA

Car: 1982 Z-28

Engine: 383

Transmission: Turbo 350

Axle/Gears: Det. Posi, Superior Axles, 3:73 G

Vacuum pump to check brake booster?

I was wondering if I can use a handheld vacuum pump to check if my brake booster is bad. If so, what is the usual vacuum reading as you pump, ie. max vacuum it'll hold. I did a "trial" run with it and got around 11 inches of vacuum, after many squeezes, and that was max. Any help or suggestions would be great, thanks.

Old

Jun 30, 2002 | 04:32 PM

#2

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It should be able to go to at least 20" Hg. If your handheld pump is still good, the booster might be AFU.

Old

Jun 30, 2002 | 07:05 PM

#3

Thread Starter

Senior Member

iTrader: (3)

Joined: Jun 2002

Posts: 564

Likes: 0

From: MA

Car: 1982 Z-28

Engine: 383

Transmission: Turbo 350

Axle/Gears: Det. Posi, Superior Axles, 3:73 G

Thanks Vader, the handheld pump is brand new.

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