Where is the vacuum line that keeps my car crank and where is it located?

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When I put on brakes the car cuts off

Feb 2, 2017

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RepairPal Certified shops can diagnose and repair your 1992 Chevrolet Caprice. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

you may have a vacuum leak in the power brake booster. 19 inches of vacuum required to operate. turn car off, pump brakes and then crank. If the pedal goes down, listen for a hissing sound to indicate failure. if not you will need to check all hoses for a leak(hissing)

ShadeTreeMaster2on Feb 3, 2017

Agreed bad booster or bad master cylinder. Check for vacuum leak but also check to see if brake fluid is being lost. i have seen it where the master vylinder fails and every time the brake is depressed it would dump fluid right into the booster and foul out the plugs. Alternate check is to pull the big vacuum line going to booster and plug it with a bolt and some tape. Do not drive the vehicle like this just driveway test to see if it still stalls when you hit the brakes. If it does stall then the vacuum leak is else where. If it doesnt then its booster or master cylinder.