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I have a 2001 Tundra SR5 with almost 300k!! its my baby. A quirky problem started recently I can not figure out. There is a hum or beep sound coming from the fuel pump relay. I replaced the relay thinking it was bad but the sound started up with the new relay. Any one know what could be causing this?
 

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I have a 2001 Tundra SR5 with almost 300k!! its my baby. A quirky problem started recently I can not figure out. There is a hum or beep sound coming from the fuel pump relay. I replaced the relay thinking it was bad but the sound started up with the new relay. Any one know what could be causing this?
Did you ever figure this out? My 01 tundra just started doing this. I replaced the relay. still doing the same thing.
Thank you for your help Ca
Chad
 
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