Vehicle Fitment
Chevy
GMC
Specifications
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Features
- Valve gets stuck in the closed or open position due to a build-up of dirt, debris, or carbon
- Clogged catalytic converter
- Electrical issues with the valve control unit
- Intake leaks
- Incorrect vacuum hose connection
- Damaged or missing EGR valve gasket
- Issues with the vacuum control or switching valve
- Defective EGR solenoid
Product Details
Nitrogen Oxide Sensor (285-1011) by Walker Products®. Position: Upstream. The Exhaust Gas Recirculation Valve, also referred to as EGR, meters the exhaust gas that is being recirculated into the intake manifold. This exhaust gas recirculation process reduces combustion chamber temperatures, resulting in reduced NOx emissions.
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