Pinging?
01-22-2008, 07:31 PM
#12
4th Gear Member
Join Date: May 2006
Location: Fort Mcmurray, Ab
Posts: 1,126
RE: Pinging?
ORIGINAL: explict
I know what you are talking about, my car does it also. Under acceleration in a certain RPM range it will make the sound and go away. It isusually in a high gear at a low RPM such as 4th or 5th at 2000RPM-3000RPM then you cant hear it anymore. It does sound like a ping but I am not sure.
I know what you are talking about, my car does it also. Under acceleration in a certain RPM range it will make the sound and go away. It isusually in a high gear at a low RPM such as 4th or 5th at 2000RPM-3000RPM then you cant hear it anymore. It does sound like a ping but I am not sure.
01-22-2008, 07:35 PM
#14
4th Gear Member
Join Date: May 2006
Location: Fort Mcmurray, Ab
Posts: 1,126
RE: Pinging?
ORIGINAL: modaddict
I know this would be a PIA - but can you record it? Hearing it would help tons in diagnosing...
I know this would be a PIA - but can you record it? Hearing it would help tons in diagnosing...
01-22-2008, 07:37 PM
#16
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Join Date: Nov 2007
Location:
Posts: 1,699
RE: Pinging?
I feel for ya bro and would suggest another dealer for a second opinion. I can't rule out detonation but I can tell you I'm convinced based on the specific rpm range that it is NOT detonation.
Again, I can't say for sure so take it to a pro that can listen to it but based on what you've described, I still put my money on some kind of harmonic rattle of something.
For starters have your tuner send you a ridiculously low advanced timing tune (like 8º max or something) and make sure you have a fresh tank of good gas (empty your tank completely of what's in there) and if it still persists, you know it's not detonation.
Get a second opinion and find what's rattling...
PS - you have ruled out a bad lifter, right?
Again, I can't say for sure so take it to a pro that can listen to it but based on what you've described, I still put my money on some kind of harmonic rattle of something.
For starters have your tuner send you a ridiculously low advanced timing tune (like 8º max or something) and make sure you have a fresh tank of good gas (empty your tank completely of what's in there) and if it still persists, you know it's not detonation.
Get a second opinion and find what's rattling...
PS - you have ruled out a bad lifter, right?
01-22-2008, 07:39 PM
#18
4th Gear Member
Join Date: Oct 2006
Location: WI
Posts: 1,173
RE: Pinging?
ORIGINAL: modaddict
I got to tell ya, I don't know for sure without hearing it but it is really hard for me to believe it would be 'pinging' if it is only at a specific RPM range. Normally pinging (detonation) will occur and worsen with increased rpm.
I got to tell ya, I don't know for sure without hearing it but it is really hard for me to believe it would be 'pinging' if it is only at a specific RPM range. Normally pinging (detonation) will occur and worsen with increased rpm.
01-22-2008, 07:39 PM
#19
5th Gear Member
Thread Starter
Join Date: Jan 2006
Location: Florida
Posts: 2,398
RE: Pinging?
I haven't ruled out anything... I'd like to hope it has nothing to do with the engine, I don't want to have to have it tore down and replaced on just an intake & tune... that would be VERY disappointing.
01-22-2008, 07:41 PM
#20
5th Gear Member
Thread Starter
Join Date: Jan 2006
Location: Florida
Posts: 2,398
RE: Pinging?
+1 Pinging is a very obvious noise, if you have ever heard it, it happens under load and increases with RPM. I find it hard to believe you could confuse a metal rattling noise from under the car with pinging.
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I've never heard 'pinging' before... To me the sound is like a thin-metallic rattle underneath the car. That's the only way I can explain it. The dealership claims that it's pinging.
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I've never heard 'pinging' before... To me the sound is like a thin-metallic rattle underneath the car. That's the only way I can explain it. The dealership claims that it's pinging.