Question about 2005 Pontiac Grand Am

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I think my idler arm needs to be replaced, how can I tell?

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If you press on the gas while the engine has already been started and the idle arm moves up before the engine begins to idle heavier (while reving your car your engine will lag when you put down the gas) this means your Mass Air Flow (MAF) sensor is bad and needs to be replaced, before replacing it, instead of paying $250 on a new one, try cleaning it with some MAF sensor cleaner, just DO NOT physicaly touch, drop, or blow air onto the sensor.

Posted on Dec 08, 2010

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You have this listed under a 05 grand am..... if this is true you have what they call a rack and pinion steering system and do not utilize such a part. if you think you are having issues, the vehicle needs to be jacked up and you grab the front wheel and shake from side to side if there is any movement, you will usually feel it and you can look under and see if the inner or outer tie rods are moving.if you are able to move the wheel and no other steering component moves(i.e. you shake the wheel and the outer tie rod moves without the inner tie rod moving or vice versa) you need to replace that component. count the threads or measure the complete length to get it close. after you replace the parts make sure to replace the cotter pin and then have it aligned.

Posted on Nov 15, 2009


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Don't worry it is not too hard if you keep at. One "special tool" that you will need is a ball joint separator to separate the ball joint on the idler arm from the steering. When changing make sure to compare your replacement parts with the original and if necessary make a diagram of how things go together. On the bottom, there is a castle nut and a cotter pin. Remove the pin and loosen the nut then use the ball joint separator to remove the idler arm. (This is the hardest part of the job.) Then remove the remaining bolts and take the part off. Before putting the new idler arm make sure that you put the new grease fitting on it (and go ahead and squirt a little grease in it even though it already has some) and in between the new ball joint and the steering there should be a plastic bearing that slips into place. It's a pretty straight forward job and once you take a good look at it you will see what all needs to be done. Hope this helps, let me know how it goes. Goodluck!

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