Mechanics

BUICK PARK AVENUE ENGINE PROBLEM

2002 Buick Park Avenue • 170,000 miles

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
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Iver1
October 31, 2012.




What is the exact code number you have not code description there is more then one egr code?

Saturntech9
Oct 31, 2012.
Best to start the car with the hood open and listen for the noise.

Saturntech9
Oct 31, 2012.
Codes I am showing are PO404, PO403, PO405, P1404

Tiny
Iver1
Oct 31, 2012.
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?

Saturntech9
Oct 31, 2012.
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.

Tiny
Iver1
Oct 31, 2012.
You will need to see what the egr valve reads with the key in run position?
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Saturntech9
Oct 31, 2012.

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