my truck runs great except when its cold. it stumbles and sputters but once it warms up it runs great.
Dec 17, 2012 at 9:06 PM
1989 Nissan Hardbody Truck Runs Great Except Cold Stumbles Sputters Once Warms
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The Idle Air Control Valve is probably bad and needs cleaning or replacement. It is on the intake manifold near the throttle body.
Dec 17, 2012 at 10:01 PM
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