2002 BUICK PARK AVENUE
170,000 MILES
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IVER1
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When started it makes a blowing sound from the engine compartment on drivers side. Once I start driving it goes away. My engine light is also on with a EGR code. I am going to take EGR off and clean as soon as I am able to. Just wondering what that blowing sound under hood might be. I looked under hood and couldn't tell where it could be coming from.

Thanks Mike
Oct 31, 2012 at 12:39 AM
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SATURNTECH9
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What is the exact code number you have not code description there is more then one egr code?
Oct 31, 2012 at 12:44 AM
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SATURNTECH9
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Best to start the car with the hood open and listen for the noise.
Oct 31, 2012 at 12:44 AM
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IVER1
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Codes I am showing are PO404, PO403, PO405, P1404
Oct 31, 2012 at 1:10 AM
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SATURNTECH9
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Doesnt seem like a sticking egr valve when you have egr low voltage codes.Do you have a scan tool that can read live engine data?
Oct 31, 2012 at 1:44 AM
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IVER1
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I have the Innova 3100f, I don't think it will read live engine data. I will get into the manual and see what it can do.
Oct 31, 2012 at 2:03 AM
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SATURNTECH9
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You will need to see what the egr valve reads with the key in run position?
Oct 31, 2012 at 2:19 AM