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10-31-2015, 08:23 AM
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#1 |
  
Drives: 2005 Toyota Vitz RS Join Date: Jan 2012
Location: Auckland, New Zealand
Posts: 181
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humming noise from the back
Hi All,
For all this time I;ve been hearing this humming noise, I thought it is the radiator fan. One day however while standing outside, I heard it louder from the rear of the car. Its a noise that comes on, then goes off. hence why I thought it was radiator fan. Is there some pump or fan or something in the rear of the car that only comes on sometimes ? |
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11-14-2015, 02:00 PM
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#2 |
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Drives: 2007 Yaris Sedan Join Date: Apr 2009
Location: CT
Posts: 281
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Probably hearing the fuel evaporation leak test pump.
My manual indicates a test is done about five hours after turning off the car. The hum is probably you hearing the leak detection pump turning On for several minutes. Last edited by BLH; 11-14-2015 at 02:17 PM. |
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