My truck started misfiring. Put on the computer says crankshaft sensor. I put a new sensor, the truck would not start, replaced 3 other times. Put old sensor back on & truck will start. I have replaced plugs and fuel pump and filter. When the truck is cold it will barely run & misfires bad. When truck warms up it doesn't misfire as bad. Took truck to mechanic he can not find what is wrong. Thank You
Jan 9, 2012 at 7:03 PM