The garage is like a bathroom, everything just echos. My old CL-S valves would have a very audible tapping noise hot or cold when raising the RPM to 1.5-2k.

But is it normal for our TLs to make a tapping noise, almost slight faint knocking noise when cold (only raising idle)?
After i get home from work and raise the idle to 1.5-2k its gone.

Is it our thin oil weight? or just my car is F'd up.
I might want to try that LUCUS SYNTH oil stabilizer.

thanks guys.

 

Is it a lot of "tapping" (from the valve train) or "ticking" from an accessory drive/belt?

Does the tapping occur when the car is both warm and cold, or just when cold?

 

Its almost light a faint knocking noise, not the valves...the valves sound great. Only happens when cold.
like a doc doc doc doc. Increases with idle speed. Once warmed up it goes away. Could it be the mechanical lifters just seating in probably once all the metal expands?

 

take your car into acura asap..... this happen to me and i didnt pay anymind to it and next thing you know i was stuck and my Vtec blew(as acura says) have to get aq whole new motor.... its only knocks when cold and when warm it gos away? make sure when you go into acura and check it they give you something in writing that you brong it in for knocking/tapping and you want that printed out on the computer not from a pen. good luck

 

Honestly, it sounds a little like piston slap. It's usually just a little more "hollow" sounding than a valve tick. Goes away within a minute or two of the engine warming up.

Some Honda 4 bangers are notorious for this but I haven't heard it in my TL. I would say it's nothing to worry about usually but since it's not common in TLs, it would be good to have it checked out.

How many miles on the oil and the engine?

 

i only have 56k on the car...its passed the warranty. and i got an exhaust, j-pipe on my car...they prob. are going to say its because of my exhaust and j-pipe.

 

which acura dealer did you go to?

 

well when i herd the tapping i went to paragon but everyone is stupid there and said nothing was wrong untill my car broke down... then they gave me the new motor at park ave...

 

Hi, my 06 tl made this noise since new, had service manager listen,also had acura rep listen,they adjusted valves to no avail. Rep said it was not a problem.I have 29000 miles now and the noise is not any worse, in fact i barely ever hear it unless i really try . I use mobil 1 5w20 and a honda filter. Like you it does not make noise when hot. I do have it in writing that it made this noise though .Have it checked out ,but i don`t think its a problem.

 

Thank you for a relieving response lol...it puts my mind at ease a bit. But it still seems very abnormal to me. I think i will try the LUCUS SYN oil stablizer in my next oil change and let you guys know if the sound is still there. Thanks guys.

 

my CLS ticks when it is really cold out.........say like -15 or lower. goes away fairly quickly 77K and it still pretty much near silent when it is warmed up just hear the nice mellow exhaust note

 

I think I hear a faint tapping/knocking noise when I am cruising on the highway. I can only notice it when my foot is on the gas and just cruising normally. However, when I let off the gas pedal it goes away. The times I have noticed this is when been around 60 degrees.