Knocking only in 4th and 5th gear?
I've been having a knock issue for awhile and it's driving me nuts. It only happens when the engine is warm and i give it light throttle in 4th or 5th gear. If I stomp on it it goes away. I have new plugs, wires, and coils so I don't think its ignition related. I rebuilt the injectors awhile back so I think that's ok too. Any ideas why it would knock under such specific circumstances?
1997 Ford Ranger XLT short bed regular cab
5 speed manual