hi fellow IATN techs. I AM A CHEV GUY BUT CANT SEEM TO PUT MY FINGER ON THIS ONE. WHEN YOU START THIS TRUCK WHEN ITS COLD IT RUN LIKE THE TIMING IS OFF\MISFIRING BAD,NO CODES. ALL SENSORS SEEM TO BE O.K. LET IT RUN FOR 10MINS AND IT RUNS PERFECT. COOLANT SENSO...

FIX posted 1/20/2006

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