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Car make a humming vibrating noise when its not even on!!!

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Old Jul 31, 2010 | 08:39 PM
  #1  
stony79's Avatar
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From: winamac,IN
Car: 1990 formula firebird T-top
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: thinking 2.73
Car make a humming vibrating noise when its not even on!!!

ok guys i have a 90 formula firebird with a 305 tpi. when i get home and im sitting outside with friend i notice my car makes a humming sound kinda like the fuel pump is kicking in for about 2 or 3 seconds even though the car key and everything is off... it does it that i have noticed about every ten minutes.. do you guys have a clue or is it possesed like my friends say. lol
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Old Aug 1, 2010 | 03:36 AM
  #2  
InfernalVortex's Avatar
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From: Macon, GA
Car: 1992 Camaro RS
Engine: Vortec headed 355, xe262
Transmission: T56
Axle/Gears: 9-bolt 3.70
Re: Car make a humming vibrating noise when its not even on!!!

Is it the hatch motor?
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Old Aug 1, 2010 | 07:49 AM
  #3  
stony79's Avatar
Thread Starter
Junior Member
 
Joined: Jul 2010
Posts: 14
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From: winamac,IN
Car: 1990 formula firebird T-top
Engine: 305 TPI
Transmission: 700R4
Axle/Gears: thinking 2.73
Re: Car make a humming vibrating noise when its not even on!!!

ya know i never thought of that... the hatch has been replaced because the motor is there but shouldnt the hatch itself have a contact strip of some sort? because it doesnt... hmmm
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