Control exhaust gas recirculation and help keep NOx emissions in check with the Standard Ignition EGR Valve EGV661. It installs as a direct-fit replacement for a broad range of GM cars and trucks, including the V8-powered Chevrolet Camaro, Nova, Corvette and El Camino, the L4-2.0L Chevrolet Cavalier and Cadillac Cimarron, plus many Buick, GMC, Oldsmobile and Pontiac applications — see the Buyer's Guide tab for the full list.
Signs the original EGR valve may need replacing include rough idle, engine ping or knock under load, and a failed emissions test. Because those symptoms can have other causes, diagnose the system first — if a failed EGR valve is the cause, this unit replaces it. Manufacturer part number EGV661.
What does the EGR valve EGV661 do?
It meters a portion of exhaust gas back into the intake, which helps lower peak combustion temperatures and reduce NOx formation as part of the engine's emissions-control system.
Will this valve fit my vehicle?
It is a direct-fit replacement for a range of 1976–1987 GM applications with L4-2.0L, V8-5.0L or V8-5.7L engines. Check the Buyer's Guide tab to confirm your exact year, make, model and engine.
What are signs my EGR valve may be failing?
Common signs include rough idle, engine ping or knock under load, and a failed emissions test. These can have other causes, so diagnose the system before replacing the valve.
How many valves do I need?
The listed applications use one valve each, so one EGV661 covers a single vehicle in the Buyer's Guide.
Should I diagnose before replacing the EGR valve?
Yes. Rough idle or a failed emissions test can stem from other components, so confirm the EGR valve is the cause first; if it is, this unit replaces it.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
