LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Fuel Pressure Regulator on a 94 z28

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Old Dec 10, 2005 | 10:44 AM
  #1  
SinisterSix's Avatar
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Fuel Pressure Regulator on a 94 z28

Have you ever installed one? I need to replace mines. . . are they hard to do.. i dont even know what the things look like. . .
Old Dec 10, 2005 | 10:57 AM
  #2  
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Re: Fuel Pressure Regulator on a 94 z28

Yes I have replaced mine. They are kind of a pain, but not exactly hard. How do you know you need to replace yours? Did you smell/see gas in the vacuum line? (in the picture it is the small black line coming off the right side of the regulator)

If you know you need to replace it then here you go.

http://shbox.com/1/fp_reg.jpg

1: release pressure from gas tank by taking the cap off
2: I suggest having your car sit for a while so there is not any pressure in the lines, or you could push down on the shrader valve and let the gas out that way. Just make sure you have a rag to hold over it so gas doesn't go flying everywhere.
3: There is a small bolt in between the fuel feed and fuel return lines, on the left side of the regulator in the picture. I found it easier to loosen this, not take it off though.
4:There is a clip holding the fuel return line to the left side of the regulator. Slide that off
5: Pull the return line out, and catch any fuel that comes out.
6: Take off the vacuum line.
7: There is a small bolt right above the regulator in the middle, take that out.
8: Pull the regulator out. It goes towards the firewall at first, then it comes out completely.
9: For install, just reverse this process.

Hopes this helps!

ShibbyZ
Old Dec 10, 2005 | 11:06 AM
  #3  
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Re: Fuel Pressure Regulator on a 94 z28

and you can do all of this with out removing you intake manifold??
Old Dec 10, 2005 | 11:18 AM
  #4  
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Re: Fuel Pressure Regulator on a 94 z28

Yup, I did. I did exactly what I said there. Helps to have a mirror too.
Old Dec 10, 2005 | 11:29 AM
  #5  
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Re: Fuel Pressure Regulator on a 94 z28

The screw that holds the fuel pressure regulator on is a Torx-27.

The screw that holds the fuel lines in the bracket is a Torx as well (can't remember the size), and the head is pointing down, so its a bit of a pain to get to it.
Old Dec 10, 2005 | 11:48 AM
  #6  
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Re: Fuel Pressure Regulator on a 94 z28

Originally Posted by Injuneer
The screw that holds the fuel pressure regulator on is a Torx-27.

The screw that holds the fuel lines in the bracket is a Torx as well (can't remember the size), and the head is pointing down, so its a bit of a pain to get to it.

ok ill give it a try

Last edited by SinisterSix; Dec 10, 2005 at 11:59 AM.
Old Dec 10, 2005 | 02:49 PM
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Re: Fuel Pressure Regulator on a 94 z28

Originally Posted by Injuneer
The screw that holds the fuel pressure regulator on is a Torx-27.

The screw that holds the fuel lines in the bracket is a Torx as well (can't remember the size), and the head is pointing down, so its a bit of a pain to get to it.


Torx-27? mine was a torx 30. I guess they changed it for a 97 maybe.
Old Dec 10, 2005 | 03:03 PM
  #8  
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Re: Fuel Pressure Regulator on a 94 z28

Originally Posted by MattysTA
Torx-27? mine was a torx 30. I guess they changed it for a 97 maybe.
whats is a torX?
Old Dec 10, 2005 | 03:10 PM
  #9  
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Re: Fuel Pressure Regulator on a 94 z28

Originally Posted by SinisterSix
whats is a torX?

think of a phillips head screwdriver it has like 4 kind of thick splines on it, well a torx is kinda like that only it has 5-6 thinner splines on it and the tip is flat.
you can go to sears.com and do a search for a torx bit and itll find you a picture
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