Firebird V8-350 5.7L VIN P SFI (1996)
Air Injection Check Valve: Service and Repair
Left Side Air
LEFT SIDE
Remove or Disconnect
1. Check valve clamp.
2. Hose from check valve.
3. Left check valve pipe.
4. Unscrew check valve from air injection pipe.
5. Before replacing a check valve, test the valve for proper operation.
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Install a vacuum pump to the nipple side of the check valve, AIR pump side.
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Pump the vacuum pump to 10 inches Hg. and observe the guage.
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If the vacuum bleeds down to zero within 5 seconds, replace the check valve.
Install or Connect
1. Screw check valve onto air injection pipe.
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Tighten Valve to 23 Nm (17 lb ft.).
2. Air pipe to exhaust manifold.
3. Air hose to check valve.
4. Check valve clamp.