WHAT CAUSES THE RPM TO JUMP (ABOUT 200) WHILE DRIVING ?
WHILE DRIVING THE RPM INCREASES ABOUT 200 AND DROPS BACK. THIS
HAPPENS AFTER I HAVE DRIVEN A FEW MILES AND THE TRUCK HAS
WARMED UP. IT SEEMS TO BE SHIFTING NORMALLY. BUT WHEN I AM
GOING AT A STEADY SPEED THE RPM STARTS JUMPING.
Does it only do it at 50 mph or higher? (+--) If so your trans could be shifting in and out of overdrive. Does it seem to do it more on a slight grade?
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