freeman

If it was a loose heat shield, I'd expect the noise all the time. Hmmm. Any ideas? Thanks!

Mikey L

This is what I had, and it turned out to be the A/C when the car was first turned on.. Normal, apparently. Turn off the A/C, no probs. (Assuming this is your problem.)

-mikey

IronMike

Is it an irregular loud clicking noise coming from the front of the engine compartment?

freeman

Hadn't thought to see if the A/C made a difference. My wife normally starts the car with the A/C on, so... I'll have to check. You can't hear it from inside with the windows up. But I can sure hear it when she drives away! Once the sound goes away, it stays away until the engine is cold-started again.

Thanks for the thought!

freeman

I'd still say it's a rattle more than a click. Has gotten more pronounced over time.

IronMike

loud irregular clunk clunk clunk noise on cold starts that would go away after the car warmed up. It would only come back after the car was stopped for at least 6 hours and totally cool again. The dealership changed the water pump, serpentine belt, and other stuff and it was still making the noise. They recently changed the belt tensioner and the noise has been gone for a while now.

ADOBO

Does it sound like <a href="http://www.crackaddict.com/~sublime/exhaust.mp3">this</a>. ?

freeman

Wow. I hope ours is not that! I'll probably get the dealership's opinion on our next visit. Thanks!

athamrin

I have the same problem too now after i got my 5k service