Noise after Starting my Trail Blazer

CHEVROLET BLAZER
Avatar
YOUNGBLOOD
  • MEMBER
  • 2 POSTS
Hi;

When I start my 2002 Trail Blazer (50,000 mi) in the morning I always let it idle for a few minutes. The cars starts fine but after a couple of minutes I hear a loud Clunk from the engine area. It does not affect the idle of the car. This condition does not seem to happen when starting the car warm.

Any idea of what this is?

Mike
Feb 28, 2006 at 12:40 PM
Advertisement
Avatar
MECHANIC116
  • MEMBER
  • 28 POSTS
does this clunk only occur once, or is it continuous until it warms up?
Feb 28, 2006 at 2:48 PM
Avatar
YOUNGBLOOD
  • MEMBER
  • 2 POSTS
It only does it one time.

Mike
Mar 1, 2006 at 11:39 AM
Advertisement
Avatar
MECHANIC116
  • MEMBER
  • 28 POSTS
I would say it's probably just the starter bendix returning to its normal position after you start it. When its cold, this action may be hindered and the clunk you're hearing is the flywheel "giving the bendix a helping hand" lol. I wouldn't worry too much about it.
Mar 1, 2006 at 6:16 PM