C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Fuel assembly replacement.

Old Feb 10, 2018 | 11:58 AM
  #1  
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Default Fuel assembly replacement.

Hi there I had a strange stalling out(1st time ever) and I havebeen hearing a vibration from my pump. If you touched it. you would feel it vibrating. After the stalling I tapped it and it restarted with no vibrating
so far. I think it was clogged up or something. I have a spare pump would this be plug and play or should I get the whole assembly.
https://www.ebay.com/itm/Fuel-Gas-Ta...53.m1438.l2649




Are there any tricks to making the cheaper unit work?
Thanks for tips.
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Old Feb 10, 2018 | 07:39 PM
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Your picture is the sending unit not the fuel pump. The fuel pump is available as a separate part, it attaches to sender. You want to be sure to have new filter and "sock" filters. The pump can vibrate normally ....it an electric motor with an impeller. You need to test and verify no or low fuel pressure when engine quits
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Old Feb 11, 2018 | 10:02 AM
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Once you place the pump on your sending unit and install it, you should really place a pressure gauge on the fuel rail to dettermine where your pressure is actaully at. A stall condition condition can be caused by several things which are related to your fuel system. Don't overlook the IAC and fuel pressure regulator. I agree that some pumps are noisy.
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Old Feb 11, 2018 | 11:50 AM
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When you change the fuel pump and sock (in tank filter) change the external filter also. The system recirculates excess fuel thru the pressure regulator so any junk in the fuel can go round thru all the plumbing. Just inexpensive insurance.
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Old Feb 12, 2018 | 11:10 AM
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IF, and we haven't established it yet, THIS might be ok.
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Old Feb 12, 2018 | 11:48 AM
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Just wondering op, you said you "tapped" the fuel pump. Did you put a pipe or bar down into the tank through the filler tube to tap it? As you know, the pump is down into the tank.
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Old Feb 12, 2018 | 12:31 PM
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Originally Posted by 383vett
Just wondering op, you said you "tapped" the fuel pump. Did you put a pipe or bar down into the tank through the filler tube to tap it? As you know, the pump is down into the tank.
Makes me think he whacked the top of the filler and got his results.
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