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Fuel pulsing Irratically

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Old Jan 18, 2007 | 02:20 PM
  #1  
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From: Mobile, AL
Car: GTA
Engine: 383 HSR
Transmission: TH-700R4
Axle/Gears: 3.42
Fuel pulsing Irratically

My fuel pressure gauge is pulsing bad... needle just shakes. I do not think it is the gauge because when I grab the ss line you can feel the pulses....

So... what could cause this? Is my pump on its way out?
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Old Jan 19, 2007 | 09:43 AM
  #2  
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It this with a factory type turbine pump or an aftermarket roller vane type pump?
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Old Jan 19, 2007 | 06:03 PM
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From: Mobile, AL
Car: GTA
Engine: 383 HSR
Transmission: TH-700R4
Axle/Gears: 3.42
no clue....

With ignition on, no pulsing... gauge is fine. When you turn car on the gauge pulses... However sometimes it wont pulse... but 3/4 times it will..
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Old Jan 19, 2007 | 06:35 PM
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Does this still happen if the vacuum line is removed from the regulator?
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