Noise happens around 2,000 RPM, steady ping like timing chain, yes or no, if not, what?
2007-03-04 15:52:36 · 3 answers · asked by Anonymous in Cars & Transportation ➔ Car Makes ➔ Ford
Increase the octane rating of fuel used. A dirty MAF sensor, vacuum leaks, or clogged EGR passages would cause this as well.
2007-03-04 15:57:04 · answer #1 · answered by Anonymous · 0⤊ 0⤋
99 fords 4.2 have a common problem with the knock sensor. It is a sensor that "listens" to the engine and when it senses a knock vibration, it signals the computer to change the timing accordingly. It only takes a few minutes to change and costs between $25 and $40 for the part. ( depending on the brand name) The timing chain was loose enough to rattle on the 4.2, it would shear the follower and the sound would be closer to having a series of hammers beating on the engine at all engine speeds. It definitely sounds like the knock sensor.
2007-03-04 19:39:41 · answer #2 · answered by shopteacher 4 · 0⤊ 0⤋
it the gas you using use 87 octane..
2007-03-08 14:38:00 · answer #3 · answered by eviot44 5 · 0⤊ 0⤋