T Tommy R New member Oct 18, 2009 #1 while driving veh will jerk when this happens the tach and speedo will fall then go back .i,ve done tap test on pcm, moved wiring around tried to check connectors can someone please help. i'll give more info if needed.
while driving veh will jerk when this happens the tach and speedo will fall then go back .i,ve done tap test on pcm, moved wiring around tried to check connectors can someone please help. i'll give more info if needed.
