Clicking sound on 2000 Ford excursion, 6.8 liter gas?
Engine has almost 200,000 miles on it. The engine has been making clicking sounds for a while now and there has been no noticeable adverse effects.
When idling or just cruising at a constant speed, the engine does not make any bad sounds. When accelerating it starts to make a clicking sound. The harder I accelerate, the louder and faster the clicking. Once I back off the gas the sound goes away. This happens whether I'm towing any thing or not. Revving the engine while in neutral does not produce any clicking sound.
I added some Seafoam to the oil per the directions and ran the truck at freeway speeds for 30 miles. I changed the oil and filter and added some more seafoam and the noise is still there.
I checked the exhaust pipes and don't see any signs of leakage, but I can't get get a good look at the manifold.
Any guesses on whether the valves are going out our if the exhaust has a hidden leak?
My Chevy is doing the same. My exhaust manifold gasket is leaking. I'm guessing your problem is the same or maybe cracked manifold. It won't hurt anything, just sounds like sh*t.
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