How to Replace an EGR Valve on a Chevrolet Pickupby Jeffrey Caldwell
The EGR or exhaust gas recirculation valve on a Chevrolet pickup is located on the intake manifold near the carburetor. The EGR valve draws exhaust gases from the exhaust system and reintroduces them into the combustion chamber. This allows your Chevy pickups engine to burn cooler and release fewer emissions by burning the fuel more completely.
Removing the EGR Valve on a Chevrolet Pickup
Disconnect the ground cable from the negative battery terminal by loosening the retaining clamp, and pulling the clamp off the negative terminal.
Remove the air cleaner assembly, by removing the wing nut on top of the air cleaner lid and lifting the air cleaner housing off the carburetor.
Locate the EGR valve. It will be mounted to the intake manifold near the carburetor.
Disconnect the vacuum line from the EGR valve, by pulling it off.
Remove the bolts that connect the EGR valve to the intake manifold.
Remove the EGR valve from the intake manifold.
Installing an EGR Valve on a Chevrolet Pickup
Examine the passages in the intake manifold under the EGR valve. Remove any carbon deposits using a flat screwdriver. Vacuum the area with a portable vacuum to ensure none of the carbon gets sucked into the engine.
Clean the EGR valve mounting surface with a wire brush. Use a vacuum to clean the area and ensure no debris gets sucked into the engine.
Place a new EGR valve gasket into position on the intake manifold mounting surface.
Place the new EGR valve into position on the intake manifold.
Reinstall the bolts that connect the EGR valve to the intake manifold.
Reconnect the vacuum line to the EGR valve.
Place the air cleaner assembly into position above the carburetor. Reinstall the wing nut that secures the air cleaner assembly to the carburetor.
Reconnect the ground cable to the negative battery terminal.
- Inspect the vacuum line connected to the EGR valve. Leaks in this line can cause your Chevy pickup to run poorly.
- Do not use automotive solvents on the EGR valve. Doing so may damage the valve.