2000 Chevy Malibu Loud Engine Noise

2000 CHEVROLET MALIBU
Avatar
MADCAT424
  • MEMBER
  • 12 POSTS
Hello,
I have a 00 Chevy Malibu with 105k miles. I bought it recently. Recently when I start up the car, and I have the windows down, I can hear the engine making loud noises, way louder than usual. Sounds like could be a belt or something, but I don't really know where to start. Any ideas?
Thanks for looking.
Sep 27, 2006 at 9:07 PM
Advertisement
Avatar
BUBBA_KOSKI
  • ✓Experienced Mechanic
  • 129 POSTS
check your belts and timing chain/belt, then your pulleys and harmonic balancer
Sep 30, 2006 at 12:28 PM
Avatar
GCROSS6
  • MEMBER
  • 2 POSTS
There was a service bulletin out where 4 of the 6 pistions were undersized. Had mine fixed, under warranty, and the loud noises went away.
May 16, 2007 at 9:56 AM

Suggested Repair

Inspect the drive belts, timing chain or belt, pulleys, and harmonic balancer. Also consider the known service bulletin about undersized pistons if the startup noise matches that issue.

Conversation Summary

The owner of a 2000 Chevrolet Malibu with 105,000 miles reports unusually loud engine noise at startup and suspects a belt. An expert recommends checking the belts, timing chain or belt, pulleys, and harmonic balancer. Another owner says a service bulletin covered four of six undersized pistons, and the warranty repair eliminated the noise.

Related Repair Questions

Add a reply
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 new question

Frequently Asked Problems for This Vehicle