rough idle when cold on 1995 Ford E-150

My van has a rough idle when cold, but engine warms up it runs fine. I did tune-up recently to help the problem but it still has the same issue. Any help would be fine. No check engine light on either.

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1 answer
Check for trouble codes anyway, they may be stored even if the light isn't on. Check for vacuum leaks and try cleaning the idle valve and the throttle body.