pinging noise from engine
Thread Starter
AudiWorld Member
Joined: May 2005
Posts: 128
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From: Toronto
pinging noise from engine
ok so I have noticed a pinging noise coming from my motor when its under load.
the best way I can descibr it is to fill a glass jar full of marbles and shake it a bit.
I dont know if its the motor pinging or if its maybe a noise from one of the accessories?
I run 91 octain from shell with no ethinol.
I tried to record the noise but all I got was wind noise.
anyone have any ideas?
on a side note I have been getting a shudder from the transmition as well as a chirp noise. would I need the software update or do I need to flush the trans?
the best way I can descibr it is to fill a glass jar full of marbles and shake it a bit.
I dont know if its the motor pinging or if its maybe a noise from one of the accessories?
I run 91 octain from shell with no ethinol.
I tried to record the noise but all I got was wind noise.
anyone have any ideas?
on a side note I have been getting a shudder from the transmition as well as a chirp noise. would I need the software update or do I need to flush the trans?
AudiWorld Member
Joined: Apr 2010
Posts: 396
Likes: 0
From: Bellingham, WA
There isn't much to go one here. I'd be taking a total shot in the dark.
Have your retrieved any fault codes with the VAG-COM? Are you getting a Check Engine Lamp at the dash? If it's pinging as bad as you indicate and it's the engine, you should have fault code(s). If no fault codes, then I would suspect a mechanical issue as you guessed. But that could be an awful lot of things.
What else can you throw out to help nail it down?
Have your retrieved any fault codes with the VAG-COM? Are you getting a Check Engine Lamp at the dash? If it's pinging as bad as you indicate and it's the engine, you should have fault code(s). If no fault codes, then I would suspect a mechanical issue as you guessed. But that could be an awful lot of things.
What else can you throw out to help nail it down?
AudiWorld Super User
Joined: Jan 2010
Posts: 2,218
Likes: 23
From: Michigan
Could be your plugs that need to be changed or possibly your ignition coil recall? Sounds like even a loose belt could be the culprit?
As for the trans chirp, I had this as well, only way to fix is to flash the ECU and get a flush; whether you go the all out way with the audi blue, or just a traditional flush.
As for the trans chirp, I had this as well, only way to fix is to flash the ECU and get a flush; whether you go the all out way with the audi blue, or just a traditional flush.
AudiWorld Super User
Joined: Nov 2010
Posts: 6,831
Likes: 27
From: Vancouver, Canada
It seams you are suspecting low octane fuel. Could it be just that? If guy with tanker truck unloaded some diesel in premium tank... Just an idea.
By the way, ethanol has high octane number (100). It just has 23% less energy than gas.
By the way, ethanol has high octane number (100). It just has 23% less energy than gas.
Last edited by mishar; Jul 15, 2011 at 11:22 PM.
Thread Starter
AudiWorld Member
Joined: May 2005
Posts: 128
Likes: 0
From: Toronto
Ok so I have had a chance to hear it a bit better and it sounds like a rattle but one I have never heard before.
I dont have any codes or a check engine light on.
The only way a belt would be loose is if the tentioner is gone right?
I have had the plugs changed and the coils done (which by the way made my car idle a bit rough) as well as a new belt.
I'm not really sure where to start looking, the noise sounds metallic a little, and it happening more often now.
Are there anything in the accessory system that's known for going?
I can't really think of anything that would make that kinda sound.
I will try and get a vid but it's hard as it cant be replicated unless the car is moving or under load, all i get is a bunch of wind noise.
I dont have any codes or a check engine light on.
The only way a belt would be loose is if the tentioner is gone right?
I have had the plugs changed and the coils done (which by the way made my car idle a bit rough) as well as a new belt.
I'm not really sure where to start looking, the noise sounds metallic a little, and it happening more often now.
Are there anything in the accessory system that's known for going?
I can't really think of anything that would make that kinda sound.
I will try and get a vid but it's hard as it cant be replicated unless the car is moving or under load, all i get is a bunch of wind noise.
Last edited by JP19640_0; Jul 16, 2011 at 12:20 AM.
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