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Re: 1990 runs rough, exteme black smoke
Posted to Technical Discussion Forum on 2/26/2010 1 Reply

Basics, basics,basics. Leave all of the fancy tools in the box. Timing light, fuel pressure gauge, scan tool and a vacuum gauge are all you need. Just a couple of hints. Assuming this is the 4.9 I6 those things are notorious for damper outer rings slipping and... Login to read more.

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