Clunk sound under hood*

[Radiant08]

When i first drive my rig, once i hit about 10-15mph i hear a little thud/clunk sound under the hood. Feels like its coming from the front left side. Once and thats it. It will only happens when the car has sat for a spell, cooled somewhat. Once i fire it up again and start rolln...thud. Any suggestions.

[racingtiger03]

thats the cars auto check (i forget if it was for the CVT or rear-end). Either way, its normal Usually happens as soon as you throw it in reverse though *shrug*

[SniperJoe]

It's the anti-lock brake self check. A bit hard to find but it is in the owners manual ... I missed it the first time I glanced through it.

The sound / clunk is normal.