Clicking/rattling sound while @ WOT
Thread Starter
Burning Brakes
Joined: Mar 2002
Posts: 1,003
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From: San Diego CA
Clicking/rattling sound while @ WOT
Well the topic pretty much sums it up.....I notice when i'm at WOT i hear an annoying rattling or clicking sound. I can't tell where it's coming from though. This is only under hard acceleration.....Any suggestions?
Thanks in advance,
Frank
Thanks in advance,
Frank
Thread Starter
Burning Brakes
Joined: Mar 2002
Posts: 1,003
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From: San Diego CA
Re: Clicking/rattling sound while @ WOT (Patman36)
Did you ever get it checked out? Sounds horrible! Between that noise at WOT and the "rocks in the can" noise when you shut it off with the clutch not engaged makes me wonder.... :(
Frank
Frank
Melting Slicks
Joined: Jan 2001
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From: Tulsa OK
Re: Clicking/rattling sound while @ WOT (NYtoCA)
I haven't had it checked out yet... I have heard there is a new PCM update that should fix some pinging but the overall effect is a DECREASE in performance, supposedly very noticeable on A4's... this is getting annoying if you ask me. :(
Patrick :cheers:
Patrick :cheers:
Thread Starter
Burning Brakes
Joined: Mar 2002
Posts: 1,003
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From: San Diego CA
Re: Clicking/rattling sound while @ WOT (Patman36)
I'm going to bring it into the dealer anyway juuuust incase. I'll let you know what they tell me.
I've had my car for 3 months and this is the 3rd problem, hope this pattern doesn't keep up cause then i'll never be able to get NOS installed! :lol:
Frank
I've had my car for 3 months and this is the 3rd problem, hope this pattern doesn't keep up cause then i'll never be able to get NOS installed! :lol:
Frank
Melting Slicks
Joined: Jan 2001
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From: Tulsa OK
Re: Clicking/rattling sound while @ WOT (NYtoCA)
Frank,
Yes, please let me know what they find out. Hopefully it is something SIMPLE. Sorry to hear about the problems with your car. I too have had a few minor glitches needing warrenty service (headlight actuator went out, buzzing dash (don't ask), creaking top). Take care and good luck!
Patrick :D
Yes, please let me know what they find out. Hopefully it is something SIMPLE. Sorry to hear about the problems with your car. I too have had a few minor glitches needing warrenty service (headlight actuator went out, buzzing dash (don't ask), creaking top). Take care and good luck!
Patrick :D
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Re: Clicking/rattling sound while @ WOT
The sound that you are describing I have as well. I also had the exact same sound under the exact same conditions on my old LT1 '97 Trans Am. That sound and the marbles in a can seem to be shared between the two engines/transmissions.
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Re: Clicking/rattling sound while @ WOT (Scissors)
I have the same thing but I have noticed it more when I buy gas from Exxon as opposed to other places I go don't know why but that is my personal experience.
Melting Slicks
Joined: Aug 2000
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From: Newland US
Re: Clicking/rattling sound while @ WOT (NYtoCA)
NYtoCA,
Do you guys think it is possible that what you are hearing is the PCV valve? Haven't noticed it on the C5 yet...but have heard something like described here on the LT1 Z-28. I've been going to pull the PCV valve and run a diagnostic lap to see if it is the problem. Haven't had time to get to it yet.
Good luck.
Mark
Do you guys think it is possible that what you are hearing is the PCV valve? Haven't noticed it on the C5 yet...but have heard something like described here on the LT1 Z-28. I've been going to pull the PCV valve and run a diagnostic lap to see if it is the problem. Haven't had time to get to it yet.
Good luck.
Mark
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Re: Clicking/rattling sound while @ WOT (pewter99)
I have the same thing but I have noticed it more when I buy gas from Exxon as opposed to other places I go don't know why but that is my personal experience.
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Injectors?
I've experienced this on occasion at WOT. I don't associate it with fuel brands. It does seem to occur at lower RPMs, rather than higher.
I complained about it once when I took the car to the dealer for something else. The service manager said they test-drove the car and it was "just the injectors ... it's normal."
I'm not sure I buy that, but the problem for me has been intermitent and I haven't pursued it further. :confused:
I complained about it once when I took the car to the dealer for something else. The service manager said they test-drove the car and it was "just the injectors ... it's normal."
I'm not sure I buy that, but the problem for me has been intermitent and I haven't pursued it further. :confused:
Burning Brakes
Joined: Aug 1999
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Re: Clicking/rattling sound while @ WOT (NYtoCA)
Below link has a way to search for PCM updates. My '01 shows a update for a pinging noise (which I am experiencing as original post mentions). Good luck.
http://calid.gm.com/vci/
http://calid.gm.com/vci/
