Pontiac 22050642 Valve Assembly, Check

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This AIR system was designed to reduce hydrocarbon and carbon monoxide levels in the exhaust by injecting air into the exhaust ports or catalytic converter. The system uses an air pump, air management valve, and check valves that direct air to the correct location based on engine temperature and driving conditions. To diagnose any issues one should check hoses, vacuum lines, wires for damage, and ensure pump drivebelt is in good condition. Pump can be checked by feeling its pulsations and noting parallel airflow with increased engine speed. The check valve should only allow air flow in the direction of normal air flow. The vacuum presence can be checked in the air management valve while deceleration valve for air flow and engine speed drop. Note the routing of hoses and tubes, tighten all connections before replacing any components. Disconnect outlet hose and remove valve from pipe assembly to replace check valve. Disconnect vacuum signal line, air hoses, electrical connectors then remove mounting bolts inorder to change air management valve. Remove the adapter together with the drive belt then unbolt the mounting bolts before installing a new pump (remove the old one). Disconnect vacuum hoses, remove retaining screws then install new deceleration valves.

The Air Management system also decreases Carbon-Monoxide and Hydrocarbon exhaust emission by the Air Injection Reaction system where air is injected to the exhaust manifold to continue burning of exhaust gas after expelling it from the combustion chamber. Components for such a system are an air pump, a diverter valve or EAC valve, check valves, and the relevant piping. Air is provided using a belt-driven air pump, and filtered via a centrifugal filter fan before reaching the EAC valve; check values ensure that exhaust air does not return back into the air pump. Located in the intake manifold runner is a deceleration valve to allow air into the intake manifold during high vacuum conditions on federal/carbureted engines. During cold starts, the PCM supplies current to the EAC solenoid to pump air to the exhaust ports while as the coolant temperature increases; the PCM kills the current to the solenoid to pump air to the air cleaner. Some simple checks can be carried out in the comfort of your home as illustrated next Check check valves for exhaust noise Check air pump for noise or right air flow Another piece of equipment used in the process is the air pump, which is of vane type and is self-lubricated and hence does not need to be lubricated; if the air pump produces sound, it means it has to be replaced. Hoses and pipes used should be inspected for deterioration and leaks in hoses or pipes found on the pressure side can be spotted using a soapy water solution. During the installation of a new drivebelt, a check on the component should be made to determine if it is worn or if it is seated tightly on the pulleys. For component replacement, one has to disconnect the battery cable, and the air pump, EAC valve, check valve, air injection pipe assembly, and the deceleration valve can be removed and reinstalled in the reverse way, tightening all the connectors that were removed.

Regular checks for leaks, cracks, or deterioration in the check valves and hoses are essential.

The AMS provides additional oxygen to sustain combustion after exhaust gases exit the combustion chamber, functioning similarly to the AIR system.

The AIR system consists of an air pump, air management valve, and check valves.

Components of this system on GM engines include the air injection pump, an air diverter valve, manifold and injection tubes, and check valves for each hose leading from the pump.

The air manifold and injection tubes may require penetrating oil for removal due to high temperatures, and proper installation involves using anti-seize compound on threads.

The AIR system consists of an air pump, air management valve, and check valves.