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Re: 2009 Cadillac CTS 3.6L Rough idle
Posted to Technical Discussion Forum on 3/15/2023 7 Replies

Jaime,

If it is recently purchased like James suggested I wonder if it has been sitting for a while and has some terrible fuel in it ?

Just a thought. It might be worth pumping some out into a glass bottle and see what it looks like. Login to read more.

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