I'm having trouble figuring out a rattling noise that gets faster and louder with speed and not RPM. It sounds like it's just under the hood by the firewall and gets faster and louder the faster I go. It starts as I put it into 2nd gear and progressively gets worse. It goes away in between shifting and will diminish if I hold my speed just right on flat ground. Any acceleration or deceleration will cause the noise to become loud again. I was thinking speedometer cable at first but the fact it goes away in between shifting has me stumped. Engine performance is normal and there's no shaking or vibration. Just a horrible loud rattle. PLEASE HELP! Thank you in advance.
Thursday, March 7th, 2013 AT 9:18 PM