2002 Mitsubishi Galant whistling while accelerating

2002 MITSUBISHI GALANT
180,426 MILES • 4.3L • 4 CYL • FWD • AUTOMATIC
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NICKS88
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  • 1 POST
The car makes a faint high pitched whistling noise while accelerating. Also the car shakes while in drive but stooped.
Feb 3, 2015 at 5:10 PM
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HMAC300
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 48,601 POSTS
check for loose/cracked shields on bottom of car. if shaking stopped continue driving til it starts again it could be an engine mount.
Feb 4, 2015 at 6:03 AM
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STRAILER
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 54,178 POSTS
This noise is common when the catalytic converter is going bad, I would use this guide to help confirm the issue.

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

Check out the images (below). Let us know how it goes
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Jul 22, 2024 at 5:49 PM