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Re: 2001 Express intermitant misfire code
Airtex or delphi fuel pump?
Good Ac Delco plugs?
Confirm good fuel pressure.
Yes a good engine capable scanner will give a lot more info and also the camshaft retard setting.
Which cylinder is misfiring and how many times.
Helps pinpoint problem.
Also will indicate low fuel pressure.
And may have other or history codes.
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Remember proper testing gives us the answer to many problems.
MT
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