06 Impalla SS RPM"* Bouncing
My brother has a 2006 Impala SS with 77k on her. He is saying that going highway speeds RPM'* seem to bounce up and down between 2k to 2500 back down to 2k again. Does not happen as frequent when cruise is engaged. He does not feel a transmission slip when it shifts. He did have 1 spark plug replaced at car max when they said there was a miss fire and he asked the tech why not replace them all. Guy said no need when the plugs are good for 100k. So I thought could be a few things, his transmission fluid does look more towards the brownish side then the redish side. Could it be because they only replaced one spark plug? He does have displacement on demand on this car as well. My brother also did some google searching and said that it sounds like this car has frequent transmission problems. I will be driving this car to work in the morning tomorrow to see for my self. Any ideas and or thoughts on what it could be? Thanks for you help guys!!
Proud Owner of a 2003 Bonneville SSEi
Door sills, Intake, Neons, Tinted windows, 3rd Brake light cover, Shift Kit, 5000k HID Fog Lights, Cleared Headlights