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Home >> Dodge and Ram >> 2003 >> Durango Base, 5.9 Z, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 23 (Disc Brakes) >> Component Tests >> Power Brake Booster Check Valve Test

Power Brake Booster Check Valve Test

WARNING: This page is about a different car, the 2004 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect vacuum hose from check valve.
  2. Remove check valve and valve seal from power brake booster.
  3. Use a hand operated vacuum pump and apply 15-20 in. Hg vacuum at large end of check valve. See Fig 1.
  4. Vacuum should hold steady. If gauge on pump indicates vacuum loss, check valve is faulty and should be replaced.
Fig 1: Testing Power Brake Booster Check Valve
G00264444Courtesy of CHRYSLER CORP.
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