I noticed today when I really step on the gas I hear the car pinging or knocking. It only does it sometimes and it only does it when I am hard on the gas. I run 93 octane in the tank and I have a SES light that comes on and off once and a while. Do you think something might be causing the sounds and triggering the SES light. The light goes away and comes back every other day.
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Stoptech BBK
Kelleners Exhaust
Black Chrome Kidney Grills
I would suspect a knock sensor. Either the wire has fallen OFF, or it is broken, or the sensor has gone south.
Wouldn'tthis be a timing issue? I remember getting a timing is ******ed code.
Its going into the shop for diag but I was looking to bring some knowledge with me. Thanks for the tip
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Stoptech BBK
Kelleners Exhaust
Black Chrome Kidney Grills
Last edited by djtroy; 2nd February 2008 at 23:55.
Normally a knock sensor is a crystal, if it breaks... it is broken not intermittent. Do you know the company you buy your gas from... there are alot of stations that cheat. I know all the cheaters in my area from one of my old trucks, needed super or it pinged like crazy on accellation, at least now I know exactly where to go to buy gas for my ///M. It could be a miss fire in one of the cylinders, I haven't had a problem with timing issues on BMWs, but hey it could happen I guess.
Normally a knock sensor is a crystal, if it breaks... it is broken not intermittent. Do you know the company you buy your gas from... there are alot of stations that cheat. I know all the cheaters in my area from one of my old trucks, needed super or it pinged like crazy on accellation, at least now I know exactly where to go to buy gas for my ///M. It could be a miss fire in one of the cylinders, I haven't had a problem with timing issues on BMWs, but hey it could happen I guess.
Could be bad gas but I think I have had it for a few fill ups. Ill see if I notice it again.
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Stoptech BBK
Kelleners Exhaust
Black Chrome Kidney Grills
With most modern cars, you should not be able to hear any pinging; the knock sensor should take care of it long before it becomes audible. I would suspect either broken knock sensors, in which case you should get a code, or more something else, like CPS suggested above.
Regards,
Jerry
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'01 Black/caramel
Dinan Stage 3 suspension, SS jet coated headers, ESS SC kit, open brake ducts, Hamann front splitters, TEC cupholder, U.S.(Euro style) tilt/slide armrest, 6k HID fogs, 6k super white low beams, V1/Stealth1, dual head LI, 2.65 diff w/40% lockup/2x dynamic, compact spare, Euro trailer hitch, Mocal oil cooler, ACS type rear spoiler, Rogue custom SSK and tranny mounts, ST 355 BBK (fronts), BP sway bar brackets, Bluetooth retrofit
With most modern cars, you should not be able to hear any pinging; the knock sensor should take care of it long before it becomes audible. I would suspect either broken knock sensors, in which case you should get a code, or more something else, like CPS suggested above.
Regards,
Jerry
Bingo.
You will never hear detonation. If the KS goes bad the car automatically assumes it is detonating and ******s timing to protect the engine!
Linear Mode
