EGR Valve Insuficient Flow

NEBUNU

MEMBER
MERCURY MYSTIQUE

I have a 1999 Mercury Mystique with around 177,500Km. I had an EGR valve insuficient flow error code so I change the EGR valve and the check engine light is still coming ON. The old valve had heavy carbon build-up and that's what I thought the problem was but it still tells me insuficient flow. I've tested the new valve and it works properly. Me personally, I don't think the vacuum is pulling hard enough to open the valve. What can I do?

Thank you.

Alex

Tuesday, September 5th, 2006 AT 9:31 PM

1 Reply

DRUMMLINE

MEMBER
2 POSTS

Did you have your throttle body cleaned out, check the valve hoses, when replacing the egr valve, you should always replace existing hoses. Mercury's are known to have heavy carbon build up in there vehicles.

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Wednesday, September 6th, 2006 AT 3:16 PM