tapping noise unbder truck
January 18th, 2019, 10:14 PM
#1
tapping noise unbder truck
2007 NNBS LTZ VMAX 6.0 4X4: Happens after warm up. Goes away for few minutes if I shut off and restart. Doesn't change with engine revs, gear, 4wd or 2wd, driving or stopped. Don't notice any change in way truck drives. Sounds like maybe a solenoid or relief valve opening and closing? Any idea what it could be? listen to link:
