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Old 02-14-2013, 12:38 PM   #1
GAGT - Newbie
AKA: Drew
Join Date: Jul 2012
Location: Grassflat PA
Posts: 9
Vehicle: 2004 Grand Am GT Coupe
Dmac8323 Gettin' there
Rough Idle, Exaust Tone Change, Sensors..

Hello, I'll just start off with that I have a 2004 Pontiac Grand AM GT..

The issue I am having is a Flashing SES light when driving down the road and very great loss of power and my exhaust changes tones from its proper "loud" sound to a quieter sound. When the car is idling the car is "shaking" a bit. These issues used to only occur once every 4 months, now its happening quite often.

I took the car to Advanced and got the codes ran and it came as a Mass Air Flow Sensor problem as well with one of the O2 senors.

They suggested cleaning the MAF sensor and changing the Air Filter to see if that clears up the issues and it has not. The problems are still occurring. So I'm not sure if I need to replace it or not.

I am planning on also changing spark plugs and fuel filter seeing that they probably have not been changed on this vehicle yet.

If anyone has had similar issues or suggestions on what it could be and how to fix it, all input would be greatly appreciated. Especially seeing that I have little Grand Am repair experience. Thanks!
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