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Re: Rough idle, No codes
Posted to Technical Tips Forum on 12/31/2020 8 Replies

Good catch.

The 5.4 engines have a bad record when it comes to timing components. The standard timing versions without VCT were a little better. I think Ford was trying to build off the 4.6 fame and made a little bigger version. The 4.6 was already perfected... Login to read more.

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