It's the motor it makes a tick sound and gets faster as I accelerate I'll try to get a video but I'm not sure it will show up on video. Sent from my bad ass phone
exhaust I know on some years its timing chain slapping against the covers cause the tensioner is getting weak. otherwise exhaust manifold bolts that go to the down pipe fords only came with two bolts per sound that could be your tick look at the two bolts you probbly can see them getting thinner and thinner i had that problem
someone planted a bomb underneath your truck. next time you start the truck more than likely its gonna explode since its hooked up to your starter
Check your exhaust out. Mine does what your talking of. My tube that goes from my driver side manifold; to the egr stuff has almost completely rusted through.
