I have a ford f250 SD 4x4. When I accelerate I get a vibration under the truck but as I reach the higher gears it stops...any idea's on what causes this?
I have a ford f250 SD 4x4. When I accelerate I get a vibration under the truck but as I reach the higher gears it stops...any idea's on what causes this? Also how do I engage and disengage the manual 4 wheel drive on this model. This truck is a AT 5.4L Triton with a manual 4x4...it is f250 super duty
Vibrations can be cause by worn out u-joints out of balance tires or even a bad cooling fan clutch can cause drive line vibration. The 4x4 you have to turn the locking hubs on the front wheels from FREE to LOCK then you have to move the shifter from 2H to 4H. Thats about it.
mine does the same thing. I know its not the u joints... I will keep you updated ...I'm going to try changing plugs and fuel filter , maybe coils...I'm not getting a light on neither, or this would be simple to chase down. I've been following another post, check you IAC....has to do with air to fuel mixture. Hope that helps.
Mine also did the same thing. It has gotten worse over time and now it has a serious shake at 50 and even worse above 63 mph. The dealer is replacing the Drive shaft because it is bent. Only 47,000 miles on this truck.
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