04 expedition engine knock

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Amos7514

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Hey I have a 04 expedition with about a 112k on it and it has a knock on the passenger side right by the oil fill it I put a stethoscope on it and it sounds like it’s coming from the injectors is it possible for injectiors to make a knocking noise or is it something else thanks
 

Vincent Vega

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Hard to say without hearing your rig for myself. Mine has always (since I bought it new) made some clicking (not really a knock) noise that is more noticeable on the pass side. I can only hear it with the hood up. I checked my roller followers and cams while I had it apart for new timing parts, and they were all fine. So I ruled that out. Could be the injectors, like you said, but you could also check for an exhaust leak from the manifold on that side.
 

Hamfisted

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If it's a knock I would pull the valve cover off at a minimum and inspect the valve train components. A knock is never a good sign. How's the sparkplug look ? Any DTC codes ?






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