Rattling under 3,000 RPM with 1/2 throttle or 3/4
04-20-2006, 04:10 PM
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Rattling under 3,000 RPM with 1/2 throttle or 3/4 anybody know the fix? Mine only does it light throttle or 3/4 throttle anytime under 3,000 rpm. I've done all routine maintenance. No leaks, new plugs,wires, o2's, top end cleaner, fuel filter, clean maf, new air filter, 93 gas all the time. Mods are tb, catback, lid. 2001 trans am m6. 51,000 miles. It never does it WOT, only 1/2 to 3/4 throttle under 3,000 rpm. Think its the cats? No SES light and does it only when warm outside. Cold weather, it never does it or that I notice. Its a clanging/rattling noise under front car near engine/cat area.
04-21-2006, 12:09 AM
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If it's like a ringing type noise it could be your O2 sensors rattling. Mine had that problem along with a few others on here. My buddy put it up on a lift and crimped the metal rings around them and it went away.
