Mechanics

CHEVROLET LUMINA ENGINE PROBLEM

1997 Chevrolet Lumina • 176,000 miles

Chevrolet Lumina how do I clean a EGR valve?
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Joe1953
January 26, 2013.



The only thing you can do is look for carbon blocking the pindle from seating. Otherwise, replace it

roy

ASEMaster6371
Jan 27, 2013.
The valve or the passage way?What are the exact codes you have not code descriptions?

Saturntech9
Jan 27, 2013.
Engine code p0401

Tiny
Joe1953
Jan 27, 2013.
http://www.2carpros.com/trouble_codes/obd2

Rasmataz
Jan 27, 2013.
That's a insufficient flow code so the egr isn't working its stuck closed or the egr port is clogged. When you push the egr pintle down does it go down smoothly? Or is it hard to push then suddenly pops loose and free?Also remove the egr valve and start the engine for a few seconds the engine should race and you should hear a loud exhaust leak?

Saturntech9
Jan 27, 2013.
I am not having any drivability problems such as pinging pre-ignition knock when the engine is under load

Tiny
Joe1953
Jan 28, 2013.
That doesn't matter because code is low flow not too much flow please try what I asked?

Saturntech9
Jan 28, 2013.