Engine Noise Between 5K RPM and 6.5K RPM
#1
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engine noise - should i worry or not
when I acclerate and push the car realtively hard I get this sound (somewhere around 5k-6.5k), like valve clatter, but real fast valve clatter. Lasts for about 1/2 second at most.
any suggestions.
any suggestions.
#3
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Actually, this very likely is engine mistiming/misfiring. If you're using 89-octane-or-lower gasoline, that's your culprit. I only say this because it happened to me. I took it to my dealer, had the service manager do a test drive with me, and when the same noise arose, that's what his diagnosis was. If you don't believe me, fill up with 2-3 tanks of 93 octane, and if the sound doesn't disappear, I'd be very surprised. The service manager said that using a non-recommended octane fuel causes mistiming because they burn at different rates, thus causing the clattering noise you mentioned.
Last edited by markd; 03-04-2005 at 08:30 AM.
#4
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Originally Posted by markd
Actually, this very likely is engine mistiming/misfiring. If you're using 89-octane-or-lower gasoline, that's your culprit. I only say this because it happened to me. I took it to my dealer, had the service manager do a test drive with me, and when the same noise arose, that's what his diagnosis was. If you don't believe me, fill up with 2-3 tanks of 93 octane, and if the sound doesn't disappear, I'd be very surprised. The service manager said that using a non-recommended octane fuel causes mistiming because they burn at different rates, thus causing the clattering noise you mentioned.
The who "oiling" thing has me pretty worried. Somtimes im glad I leased.
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