2007-09-20 10:02:03 · 5 answers · asked by thebirdman 1 in Cars & Transportation ➔ Maintenance & Repairs
it is more than likely the lifters making noise and one reason is because the octane of the gas is not high enough or it could be because they are not getting enough oil
2007-09-20 10:12:24 · answer #1 · answered by hermitofnorthdome 5 · 2⤊ 0⤋
Octane doesn't have anything to do with rattling valves. It could be low oil pressure to the lifters. A few engines don't have hydraulic lifters and need the valves adjusted now and then. Or, the engine could just be worn out.
2007-09-20 15:22:43 · answer #2 · answered by Nomadd 7 · 0⤊ 0⤋
NO ONE can answer this without MORE INFO like WHAT kind of car from WHAT year made by WHO and with what engine size and mileage!!!! SOME OLDER engines will "PING" if POORER octane gas is used in them! Some VALVE RATTLING is from DIRTY HYDRAULIC LIFTERS and your engine needs a FULL MOTOR FLUSHING treatment to remove SLUDGE< and cooked in COKE and VARNISH deposits! ALl engines now MUST be CLEAN as showroom to work the way they should!!! <<
2016-05-19 04:59:12 · answer #3 · answered by Anonymous · 0⤊ 0⤋
hermitofnorthdo got it . First check oil level of the car. Oil light will worn of low oil pressure. Majority of the time it is cheap gas or timing is off
2007-09-20 10:43:04 · answer #4 · answered by miiiikeee 5 · 0⤊ 0⤋
It means "break out the checkbook"
2007-09-20 10:34:48 · answer #5 · answered by American Avatar 2 · 0⤊ 0⤋