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Well I thought I would make a topic about this due to me not being to find a solution to the problem. So as I am warming up the impala I waited a little while for it to get to operating temperature and then I start hearing a “teeth chattering” noise, at first I thought it was the lifters but it sounded more like chattery. The noise isn’t really that loud but noticeable. Please reply back if you have any idea what this is thank you. It was only 30 degrees outside at the time.
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Is the vehicle still in factory warranty? If it is, let the factory address the noise in writing, mostly because of future failures related to the noise out of the factory warranty; you will have something in writing.
The 3.6L has a normal noise under operation because of the high pressure fuel pump and injectors do to the direct injection fuel system that produces a rapid clicking and ticking sound that can be heard from the engine compartment.
Because of the many abnormal sounds the 3.6L has, I would let the factory warranty (if still under that warranty) address that.
[quote=”JTF” post=118882]Is the vehicle still in factory warranty? If it is, let the factory address the noise in writing, mostly because of future failures related to the noise out of the factory warranty; you will have something in writing.
The 3.6L has a normal noise under operation because of the high pressure fuel pump and injectors do to the direct injection fuel system that produces a rapid clicking and ticking sound that can be heard from the engine compartment.
Because of the many abnormal sounds the 3.6L has, I would let the factory warranty (if still under that warranty) address that.[/quote]
Well I know it needs spark plugs and here in 5k miles it will need a trans fuild flush because it will be hitting 50K miles and I am pretty sure it needs some power steering fuild but I’m quite surprised that I am having to service the impala this much. I guess getting a vehicle for 12K only gets you so far.The noise is more like chunking and it happens on a 4 sec delay and it shakes when I am starting it up cold it shakes aswell.
Are you getting any check engine or power train warnings ? , might pay to visit a technician
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