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slow upshift

  1. Used Seafoam to clean Intake --- Now transmission upshifts VERY slow with loud whine

    4th. Generation Chrysler Minivans: 2001-2007
    I disconnected a vacuum line from my 2003 T&C, reved 3.8 Engine to 2k RPM and let the intake suck in Seafoam to clean the Engine. Engine started to misfire and hesitate at idle and Tranny immediately upshifted VERY slow with a loud whining noise. I changed plugs and wires and the engine...
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