bimmer21_67
Well-Known Member
Hi, i got engine knocking sound when i acellerate my car, can anyone help me for a solution?, i tried switchin petrol , but cant solve.
E46 320i A
E46 320i A
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Engine knocking sound
- Thread starter bimmer21_67
- Start date
Re: Engine knocking sound
How do you know or confirm is from the engine?
If is coming from the engine then your car will not have any POWER.
Have your power drop?
If knocking from engine (knock sensor) will detects and your ecu will go into save mode
you will not have any more power.
How do you know or confirm is from the engine?
If is coming from the engine then your car will not have any POWER.
Have your power drop?
If knocking from engine (knock sensor) will detects and your ecu will go into save mode
you will not have any more power.
bimmer21_67
Well-Known Member
Re: Engine knocking sound
Tried V power already, still not solved, even go to the mechanics to chk, they cant solve it. Hydraulics lifters?maybe, dun mind trying to eplac, Last resort is PML, gonna cost a bomb if go thr
Tried V power already, still not solved, even go to the mechanics to chk, they cant solve it. Hydraulics lifters?maybe, dun mind trying to eplac, Last resort is PML, gonna cost a bomb if go thr
Jason8822
Well-Known Member
Re: Engine knocking sound
how often you hear the engne knocking sound? intermitten or knocking whenever you accelerate?
how loud is it? you hear it with the window down or what?
i can hear just a few clack from the engine initially when accelerating up a slope with my window down.
i suppose its just a momentary thing as the knock sensor will detect the knocking and the ecu will adjust the timing to a less aggressive one before going to limp mode with less power.
how often you hear the engne knocking sound? intermitten or knocking whenever you accelerate?
how loud is it? you hear it with the window down or what?
i can hear just a few clack from the engine initially when accelerating up a slope with my window down.
i suppose its just a momentary thing as the knock sensor will detect the knocking and the ecu will adjust the timing to a less aggressive one before going to limp mode with less power.
bimmer21_67
Well-Known Member
Re: Engine knocking sound
Tried changing different brand and grade fuel still never help.
Yes, when i am acellerating off, can hear the knocking sound, even with the windows up. m very sensitive to any sound that comes from the engine, of coz when window is down is loud.N this knocking sound is always there even on high speed when i start to acellerate for power for over taking.
Sound alwats there wn=hen acellerating.
Looks like i have to try replacing the injectors to see if it solved.
Funny it does not capture fault in the ECU. BVO just did a scan for me and no fault code.
Looks like i just have to live with it
Tried changing different brand and grade fuel still never help.
Yes, when i am acellerating off, can hear the knocking sound, even with the windows up. m very sensitive to any sound that comes from the engine, of coz when window is down is loud.N this knocking sound is always there even on high speed when i start to acellerate for power for over taking.
Sound alwats there wn=hen acellerating.
Looks like i have to try replacing the injectors to see if it solved.
Funny it does not capture fault in the ECU. BVO just did a scan for me and no fault code.
Looks like i just have to live with it
