2004 Chevrolet Trailblazer Over 125 000 Miles Still Runs Great Recently Been

2004 CHEVROLET TRAILBLAZER
125,500 MILES
Avatar
ANONYMOUS
  • MEMBER
  • 1 POST
I have a 2004 Chevrolet Trailblazer with over 125,000 miles. It still runs great, but recently, I have been noticing a slight problem.

On startup, it cranks normally and sounds great. When I put it in drive, there is a very loud vibration that sounds like it is coming from the front of the engine. When I put the transmission in reverse, neutral, or park, the sound goes away. It only does it in drive. It only does this when the engine is cold.

Once the engine warms up, it either goes away completely or lessens. Usually it goes away altogether.

Can you please tell me what this could be?

Oct 30, 2012 at 4:52 PM
Advertisement
Avatar
HMAC300
  • ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
it may be the fan activating. have a pro or someone else look when this happens.
Oct 30, 2012 at 5:10 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.