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Fuel pump wont turn on

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Old May 8, 2010 | 04:08 PM
  #1  
1990z28's Avatar
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From: Illinois
Car: 1990 Z28 Camaro
Fuel pump wont turn on

Ok well this just happened out of the blue it worked about a week ago I got a 305 TBI 90. Just what should I check for. I do have spark and everything. I am able to hear the pump turn on normally and I went to start her up today and nothing from the pump everything else is working right. Just looking on ideas what to test and if you can tell me where to check for it would help me out alot. Thank you in advance.
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Old May 8, 2010 | 04:14 PM
  #2  
KNBlazer's Avatar
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From: San Diego, California
Car: Trailblazer EXT 4.2 (Firebird Form)
Engine: 5.1 4bbl
Transmission: 700R4 Mega Raptor Level 4
Axle/Gears: 2.73
Re: Fuel pump wont turn on

Originally Posted by 1990z28
Ok well this just happened out of the blue it worked about a week ago I got a 305 TBI 90. Just what should I check for. I do have spark and everything. I am able to hear the pump turn on normally and I went to start her up today and nothing from the pump everything else is working right. Just looking on ideas what to test and if you can tell me where to check for it would help me out alot. Thank you in advance.
are you getting injector pulse?
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Old May 8, 2010 | 04:29 PM
  #3  
1990z28's Avatar
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Car: 1990 Z28 Camaro
Re: Fuel pump wont turn on

What do you mean by injector pulse.
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Old May 8, 2010 | 04:32 PM
  #4  
KNBlazer's Avatar
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Joined: Feb 2010
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From: San Diego, California
Car: Trailblazer EXT 4.2 (Firebird Form)
Engine: 5.1 4bbl
Transmission: 700R4 Mega Raptor Level 4
Axle/Gears: 2.73
Re: Fuel pump wont turn on

you say you hear the pump prime but nothing happens... did you check the fuel pressure and found none? or are you assuming there's no pressure... I don't know if there's a shraeder valve on a TBI setup...
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Old May 8, 2010 | 04:36 PM
  #5  
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From: Illinois
Car: 1990 Z28 Camaro
Re: Fuel pump wont turn on

Right now I dont have the equipment to check for pressure since it hasent turned on I get nothing when i turn it over but when I pour fuel in the TBI it fires for a few seconds so I assume theres no pressure
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Old May 8, 2010 | 04:52 PM
  #6  
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Re: Fuel pump wont turn on

Thank you for your help I found what it was it was just a little fuse. Big problems little fix thank you again even know you dident say that you helped me out.
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