Re: Engine Problem?
Start with the basic stuff. Check firing order. Couldn't hurt to look over the plugs at least. Then move on to narrowing down which cylinder is misfiring. Will need to pull wires off one-by-one, start the truck, and find which one doesn't make it worse. Or computer should be able to do a cylinder balanace test IIRC. Pulling codes couldn't hurt either. Could be anything though, even a vacuum leak, good luck. Check the vacuum line under the TB that runs to the charcoal canister.
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