2002 Pontiac Grand Prix loud noise

2002 PONTIAC GRAND PRIX
Avatar
TOMIKA1569
  • MEMBER
  • 1 POST
2002 Pontiac Grand Prix 6 cyl Front Wheel Drive 162000 miles

In the morings when I turn on the car, I get a very loud noise, it sounds like a putta-putta or a chugga-chugga sound. It's embarrasing loud. It only last about 3 to 5 min after turning on the car. Once the car is warmed up the noise stop and I get the regular car sound. Can you tell me what you might thing it is. I was told it could be a crack in the exause manafold.
Oct 8, 2009 at 4:37 PM
Advertisement
Avatar
MMPRINCE4000
  • ASE Certified Mechanic
  • 8,548 POSTS
  • ASE Certified Mechanic
If you are not getting a check engine light, then it very well could be an exhaust leak, which would get quieter as engine heats up and metal expands.
Oct 9, 2009 at 9:06 AM
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.