The Chevy 4.3 egr system is important to the proper operation of the engine. A clogged egr can cause rough idle or low fuel economy, among other things.
It should be on the front of the intake manifold directly above and behind the water pump.
the vortec 4200 doesnt have an EGR system
The EGR valve on your Astrovan is on the backside of the intake manifold just under the throttle body attached by two bolts. After installing a new gasket be sure and torque the BOLTS to 17-18ft lbs or the NUTS (if yours has studs) to 15ft lbs)
The Chevy P1400 code indicates an issue with the Exhaust Gas Recirculation (EGR) system, specifically related to the EGR flow or the EGR valve. This code can result from a malfunctioning EGR valve, blocked passages, or issues with the EGR control circuit. It may lead to increased emissions and poor engine performance. Addressing this code typically involves inspecting the EGR system components and ensuring they are functioning correctly.
I have the same problem with my truck, It notorious... You have a stuck EGR valve.. Replace the EGR valve and it should work fine.
Where is the EGR unit located on a 2001 Chevy Impala? picture please
Don't assume that a code that is related to the EGR system is necessarily the EGR Valve at fault.
2002 5.3 Chevy don't have egr valves factory removed them in 2002
where do I find the egr valve on a 1999 Chevy Cavalier?
there is no such thing as an egr position sensor
The EGR (Exhaust Gas Recirculation) sensor in a 1997 Chevy Camaro monitors the flow of exhaust gases being recirculated into the engine's intake manifold. This process helps reduce nitrogen oxide emissions and improve engine efficiency. If the EGR sensor malfunctions, it can lead to poor engine performance, increased emissions, and potential trouble codes being triggered in the vehicle's onboard diagnostics system. Regular maintenance and checks can help ensure the EGR system functions properly.
95 Chevy impala egr valve removal