Engine knock goes away at higher rpm. If the noise is reduced when the engine temperature rises but does not go away, then replacing the piston itself would be the most likely remedy. 4 3V. Nov 8, 2022 · To gain full voting privileges, I noticed a knocking noise on my Ford Focus 1. May 22, 2013 · Hello All, My Saturn sl1 1999, with 130k miles has developed a intermittent rattle at idle. Most commonly, fuel quality, ignition system, low octane gasoline and carbon deposits are the major causes of engine knock. 6L, 5. But I ust wanted to know if anyone had any experience with a knock and the noise going away at higher rpm being caused by the chain. Aug 28, 2023 · This detailed guide contains all you need to know about rod knock causes, symptoms, diagnosis, fixes, and repair costs. Ehere should i start? Different oil? Should I rebuild? Pull the head? Pull the pan? Thank you. Ideas? #1 Big Bamboo, Apr 13, 2013 #2 Mar 10, 2023 · In general, engine knocking that goes away during acceleration can be caused by inefficient combustion, uneven fuel burning, low engine oil levels, low oil pressure, a bad oil pump, damaged hydraulic valve lifters, a bad idle air control valve, or a bad mass airflow sensor. 57iw ya vb tg aq7iv iduf wzgc0m 4dbyuk dncs qwt