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andrewmp6 · 03-10-2016, 06:26 AM

I was always told let the car/truck idle for 2 mins then pull the hose off the brake booster,If a big rush of air comes shooting out its good,If next to nothing or none comes out then the booster is bad.

03-10-2016, 06:26 AM	#11
andrewmp6 Registered User Join Date: Jan 2009 Location: Louisville,Ky Posts: 5,811	Re: How do you test a brake booster? I was always told let the car/truck idle for 2 mins then pull the hose off the brake booster,If a big rush of air comes shooting out its good,If next to nothing or none comes out then the booster is bad.