Question about 1997 Toyota 4Runner
I have a 97 4runner Limited, Automatic Trans. There is a deep whirring noise/whine coming from under the hood. Happens only when in gear, drive or reverse, not when in park or neutral (or it's too quite to hear then). Seems to go away as I step on gas and makes itself apparent when slowing down or at a complete stop. Pitch slightly changes with rev of the engine. Very noticeable when no background noise present. I had the belts replaced and a complete maintenance service done. Not the timing belt. Any suggestions would be greatly appreciated.
Could be a possible break down of the plug wires. Seems that I remember hearing if your plug wires are breaking down inside and if its up against the motor you can hear something that sounds like interference in your radio. Just a thought, might want to check it out.
Posted on Nov 09, 2010
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Posted on Jan 02, 2017
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