HELP With Strange Noise RE: 2010 C6 With 12,200 Miles

Asked by May 09, 2012 at 09:45 AM about the 2010 Chevrolet Corvette Coupe 1LT

Question type: Maintenance & Repair

Following EVERY cold start for the past 3 months, I idle the car for 1 minute (as I always have)  before  slowly backing out of the garage, down the driveway  then onto the street.  I exit the driveway slowly with the steering wheel turned sharply right to protect the air dam from striking the culvert between the drive and street. Once the front wheels have entered the street, I straighten the steering wheel, come to a full stop,  engage first gear  then move off slowly.  Within 1-3 seconds of moving forward, I hear a single metallic "clunking" noise from somewhere below.  I neither feel anything in the steering wheel nor see any messages on the DIC.
I frequently reproduce this noise if the car sits outside in a parking lot for at least 30 minutes. Note: This is not the Evap Cannister clicking noise. The local dealer has no clue.

2 Answers

455

INSTEAD OF FIRST GEAR, AFTER THE FULL STOP TRY TAKING OFF IN SECOND GEAR. I'M NOT A "MECHANIC" BUT IF YOU ONLY GET THIS NOISE FROM A DEAD STOP, IT'S PROBABLY SOMETHING IN THE CLUTCH ASSEMBLY. LOOK FOR THE STUPIDEST, SIMPLEST THINGS FIRST. BECAUSE THAT'S USUALLY WHERE THE PROBLEM IS. AND GOOD LUCK!!

415

Do you have a u-joint going bad in one of the axles??

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