GM EGR valve

1995 year GM. Will a bad EGR valve cause an eng miss at steady to very slight de-acceleration speed? If I hold the throttle steady going slightly uphill there is no miss but the slightest downgrade she starts missing. Had the EGR cleaned and still get SES light. The miss happens if the light is on or not. Codes have pointed to the EGR. Idles fine and accelerates fine. I think the EGR is called a linear. It is electric with 5 wires.
Reply to
Steve
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What codes are you getting?

Reply to
80 Knight

What's the code?

Reply to
Steve Mackie

Dont know the code. Shop never told me. I was going to just replace the EGR at $150 myself but from different talk around, this may not be the source for my miss at steady speeds. The EGR fault may be masking something else. I guess I'll just have to dig deep and take it to the dealer Wednesday.

Reply to
Steve

You were going to "just replace the EGR?" Why do people insist on replacing parts without diagnosing the DTC?!?

The dealer will (should) help you.

Steve

Reply to
Steve Mackie

Yes, the dealer can help you, but if you knew the code, you would likely have a much better idea of what is wrong. Throwing parts (especially expensive ones) at a car in hopes of repairing a problem isn't usually a good idea.

Reply to
80 Knight

Is that the digital EGR??

Pull the EGR assembly off. (It's two nuts, and easy to do) If there's 'muck' under it, and your engine is one those that can crack the intake manifold or gasket and let coolant in there, take the vehicle OUT OF SERVICE IMMEDIATELY and get it fixed!!!!

Reply to
Mike Y

Dealer replaced EGR valve. No SES light or eng miss. $300

Reply to
Steve

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