Engine noise/rattle

evol911evol911 familEE
in Engine & Drivetrain
Need some help guys. Just started noticing that when my car is in a higher gear and a lower rpm, when I step on the gas I get a rattling noise from the motor. This also happens when I'm going up hills in higher gears with lower rpms(like 3rd gear 30 mph or so). I've heard this might be because of bad main bearings but I'm not sure. Any ideas or experience?

Comments

  • wagodizzlewagodizzle Council Member and EDM expert
    is it pronounced? or more like a quiet pinging sound... it could be your ignition timing which is causing the pinging spark plug sounds
  • bam-bambam-bam Council Member
    ^^ he's right, try retarding the timing a bit.
  • evol911evol911 familEE
    thats another thing i was thinking because I use a low grade of gas that it might be pinging. its usually only when there is a load on the engine. i'm gonna pull the plugs and check the condition. anyother suggestions would be appreciated :D
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