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Power Brake Unit Check Valve

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2001 Isuzu Rodeo Sport, 2001 Isuzu Rodeo, 2001 Honda Passport, 2000 Isuzu Rodeo, and 2000 Isuzu Amigo. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect vacuum hose on power brake unit side of check valve. Place finger over check valve. Start engine. If vacuum is present, go to next step. If vacuum is not present, replace check valve.
  2. Remove check valve. Apply vacuum to power brake unit side of check valve. Valve should hold vacuum. If vacuum does not hold, replace check valve.
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