Tranny(?) noise

dfishrmn88 · #1 (**permalink**) 12-18-2007, 07:03 PM

I have a '05 F150 Screw, 5.4, 4x4 with 15,400 mi. I have recently installed an Edge set on Lvl 2. I have noticed a slight whirr or vibration at 1800 rpm. Only occurs at 60-65 mph under light acceleration. It doesn't slip, buck, or anything on that order and if I hit the throttle hard it goes away. I hadn't noticed it before the Edge was put in. Besides that it runs great, anybody else have a similar problem or ideas what it may be? Thanks.

FTE Ken · #2 (**permalink**) 12-20-2007, 05:38 PM

Okay, it could be one of several things. Does it do it in all gears? Light throttle or heavy throttle? Does the noise change pitch with vehicle speed?

dfishrmn88 · #3 (**permalink**) 12-20-2007, 07:48 PM

It seems to be only in overdrive under light acceleration. Happens at about 60-65 mph. Then disappears after acceleration. Does not change pitch. Is not a "grinding" noise or a "metal on metal" sound, just a noticable "whirr" that can be felt in the floorboard. I reset the Edge to stock and it seemed to go away. I was running Lvl 2 with pre-programmed shift firmness when I noticed the noise.