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Re: Doing a lower intake on GM 3.1/3.4? Please check this
Posted to Technical Discussion Forum on 8/28/2007 2 Replies

Steve,

A few weeks ago we had a 3.4L Montana that ate our breakfast, lunch and dinner. Engine had a coolant leak on the lower intake. We replaced the gaskets using the new Felpro set. After finishing the job the tech diagnosed a vacuum leak. He replaced the ... Login to read more.

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