- On carburetor-equipped vehicles, remove the air cleaner assembly.
- Disconnect the vacuum sensing tube from the EGR control valve.
- Disconnect the EGR control valve-to-exhaust manifold pipe. Disconnect all
vacuum hoses.
- Disconnect the pipe between the EGR control valve and the intake manifold.
On the 929, disconnect the two water hoses that are routed in front of the
valve and detach the electrical connector.
- Unbolt and remove the EGR control valve.
- If the old valve is to be reused, it should be cleaned with a wire brush
before installation.
To install:
- Install the EGR valve with a new gasket. On the 929, fasten the electrical
connector and the two water hoses. Connect the EGR valve-to-intake manifold
pipe with a new gasket.
- Connect all vacuum hoses. Connect the exhaust manifold-to-EGR valve pipe.
- If applicable, install the air cleaner assembly.
- Start the engine and inspect for exhaust gas leaks. On the 929, check for
water leaks also.