WHEN ACCELERATING AND THE TRANNY GOES THRU ALL THE GEARS INTO OVERDRIVE, AND I'M DRIVING AT A STEADY SPEED BETWEEN 45 AND 70 MPH, IF I GIVE IT A LITTLE GAS THE TRUCK SHUDDERS CONTINUOUSLY AS IF GOING OVER ALOT OF TRAIN TRACKS TILL I GIVE IT MORE GAS OR I EASE UP ON THE ACCELERATER. A MECHANIC INSTALLED A NEW TORQUE CONVERTER AND DID A SOFT PARTS O/H OF THE TRANNY. HE ALSO REPLACED ALL THE SPARK PLUGS AND HE FOUND A BAD COIL. I DROVE THE TRUCK FOR ABOUT 15 MILES AND THE SYMPTOMS APPEARED AGAIN. THE COMPUTER IS NOT THROWING OUT ANY FLAGS OR CODES. ANY CLUE AS TO WHAT'S WRONG?
Aug 13, 2008 at 8:44 PM