I have a 2004 TL that has a definite squeal when moderately accelerating through 1500-2500 RPM. This happens whether cold engine or hot, wet or dry.
Any ideas out there?

 

sorry wrong forum

 

Moved to 3rd gen TL forum

 

Is this your first 6 cylinder?

 

Is it a squeal or a whistle? You wouldn't by chance have a CAI setup, would you?

 

Have you figured out what causes the noise? I have noticed that when I accelerate, there is a slight squeal/whistle sound. What causes this? I have a 2 week old 2007 TL-S MT...

 

L Randall, I am waiting until my next oil change (within two weeks) to ask the dealer about this issue. Sounds like the same issue. I was concerned that it was a vacuum leak, but the reply I received in the other forum (supposedly the correct one) sounds reasonable. I plan to give it a try then.
To Robbie the Cable Guy, I am not sure what you are asking in case you wish to elaborate.

 

Not sure if this is the same as your problem, but I had something very similar and it was found to be the plastic driveshaft cover.

 

I'm not sure if we have the same issue, but I recently took my car (2004 Auto-Transmission with 42,000 miles) in due to 2 noises:

1) chugging noise while car is idle
2) whining/squealing noise when accelerating

Just got my car back today from the dealer and both noises have been fixed.

* The chugging noise was fixed by replacing the Alternator Assembly and tensioner.
* The whining noise was fixed by replacing the Power Steering sub-pump, O-Ring, and Compressor Belt. Problem was identified by Power steering pump leaking a lot of fluid whereby beforementioned items were replaced.

There was another thread that discussed a whirring noise when accelerating and couple people noted that replacing the Heat Shield resolved the issue.

 

Thanks to the responses from my original June request for help, the squeal upon acceleration problem is gone. It was the Heat Shield, which Acura found to be faulty and replaced. Acceleration is quiet and fun now.
Thanks to all.

 

Hey there I just put in a new injen cai myself and I can’t even hear the air flowing through it and hear this like squeaking noise any time I accelerate. Any ideas?

 

Props to you for searching, but holy hell…this thread is from 2007.