Toyota 4runner humming noise at idle. But i have a brand new rack w power steering pump. Once the engine is revd it goes away. It feelssounds like it is coming from the passenger side around the fire wall or behind the dash but i cannot be for certain.
Its a humming vibration when i 1st start up the truck. 2006 toyota 4runner sr5 v8 4x4 nautical blue metallic 1986 toyota mr2 aw11 na 5 speed njshadow93s 2006 sr5 build reply with quote. It only happens at engine idle or at very low rpm while driving.
I just had the same problem a few weeks ago. Found the answer to this one on page 8 of the manual doh approximately five hours after the engine is turned off you may hear sound coming from under the vehicle for several minutes. I check the idler pulleys for both the power steering and ac compressor they are not the culprit either i took each belt one at a time an tested while idling alternator is good ac compressor is good and power steering my only thought could be.
Made a humming noise and got louder when i accelerated and when i shifted into reverse or drive there was a klunk or a knock. My 04 extra cab has a 27l while idling i have a whining noise almost like a power steering whine. Went to autozone and got a new universal.
Troubleshooting Car Front Suspension And Wheel Problems From Noises Or Rumbling Sounds Axleaddict
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