Engine Knocking While Reeving Engine Parked?
Engine has a knocking sound when I'm parked and rev the engine. Quiets down to nothing as its just running. But does knock for a second when I start the engine. I did an oil change and put some lucas in and it quieted it down a little but its still there. No metal was detected in the oil. I don't hear it when driving unless its just hard to hear. Any suggestions or tests I can do? Oil pressure seems fine. It does leak some oil over time. Someone said the engine might have a bad lifter vs spun rod. Or someone else listened sand said maybe its the exhaust. It sounds like its right in the middle of the driver seat and passenger. Back of the engine. It first started a while back after sitting for a while and it had lost some oil. Not realizing it I left my house and a couple houses down i noticed the oil pressure dropped so i turned around and switched vehicles. I did the oil change with the lucas as stated above and it has been driven. It seems to drive ok but it tends to knock and skip a bit when I gun it like its not getting enough power. Driving normal seems ok. Praying its not a spun bearing. I have had a few buddies take a listen and one said the engine was shot while 3 others said it either sounds like a lifter or maybe the exhaust or something else. Its not constantly knocking. Its an unusual case. A rattling type of knock
ford e-350 120,000k miles on it. Everything is in good shape other than the body and a speedometer needle going crazy. Tons of rust underneath. Thanks.
Added (1). Engine oil pressure seems ok. I put a new starter in today and right after i fired up the engine i didn't hear any knocking at all. But after shutting it off and running it another time it came back as it was before. Very strange. Engine 5.4L V8.
Hi there's the evidence this engine is worn out seriously loss of oil and knocking are the sure signs of a clapped out engine.
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