I have a question for you maybe you can help. My FX4 scab has a vibration in the floorboard,I thought it was the insolation around the ex. and trans. but now Im not so sure. I can now feel it through the gas peddle,even when the motor is turned off and the trans is in netural,can you please give me some idea's. This is really starting to bug me.

 

You can feel this vibration with the engine off??? Or are you refering to the blower motor of the HVAC system?

Be a little more descriptive.

Does your engine seem to be excessively loud? Can you visually see movement of the engine when it's parked and idle?

-ii

 

No,it's while Im driving down the rd., I can turn the engine off,and in netural and still fill a vibration in the floorboard of the truck while it's moving. That's the problem Im having. The truck has a vibration in the floor board's,you can feel it on both side's of the truck,It's starting to get a little worse,I just thought you might have a suggestion for me to look at or tell the tech. guy at my dealer to look at. The rep told the dealer to try and fix it themself's. Hope you can shed some light on my problem!!

 

tires? drivetrain/driveshaft misalignment?

 

I don't think it's the tire's or the alignment,it starts around 45mph or so and does'nt quit at any other speed,now it could be in the drivetrain since the truck is still moving when I kick it out of gear.