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

Fuel pressure regulator install help...

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Old Sep 24, 2005 | 11:01 AM
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Default Fuel pressure regulator install help...

Hello. I'm about to replace my leaking fuel pressuer regulator on my '96 LT4. I have never touched the fuel system before and have little idea what I'm doing. I think I know how to remove the pressure from the system from the Schrader valve and the rest looks easy. But I know better. Any advice on removal of the old fpr? It looks like one torx screw and some kinda snap ring hold it on. Snap thing might be a problem. Does it require a special tool? Any and all advice will be appreciated. Thanks.
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Old Sep 24, 2005 | 07:01 PM
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I'm sure the experts will pipe in, but yes you do need a special tool to remove the regulator.
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Old Sep 24, 2005 | 07:30 PM
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Where was it leaking to and from?

First step, release the fuel pressure.

A set of pliers will help. The rest is easy. Then recalibrate your desire FP.

I have to re-install mine. It was giving me a hard time at starting but later I realized I had it to high. One of these days I get it back there
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Old Sep 25, 2005 | 12:57 PM
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No special tool required. Pull off fuel rail and lay upside down to get at FPR. Get some new o-rings for the injectors before you re-install fuel rail.
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Old Sep 26, 2005 | 11:24 AM
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Originally Posted by fredk
No special tool required. Pull off fuel rail and lay upside down to get at FPR. Get some new o-rings for the injectors before you re-install fuel rail.
I have to remove the fuel rail? I was hoping to be able to just take out the regulator without taking out the fuel rail. Thanks for the help.
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Old Sep 26, 2005 | 12:15 PM
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I did this on my 95 a few years ago and my recollection was that it was a simple 10 minute job requiring NO special tools or removal of fuel rails. I replaced the stock with a TPIS adjustable unit and the pressure regulator stays in basically by a pressure fit.
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Old Sep 26, 2005 | 12:18 PM
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Originally Posted by DougSilver
I did this on my 95 a few years ago and my recollection was that it was a simple 10 minute job requiring NO special tools or removal of fuel rails. I replaced the stock with a TPIS adjustable unit and the pressure regulator stays in basically by a pressure fit.
Whew! Thanks, I'm going outside right now and give it a try.
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Old Sep 26, 2005 | 12:43 PM
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Bleed off pressure, remove fuel line, remove vacuum line, remove one bolt in the bracket and pull the regulator off. Might have to twist back and forth while pulling.
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Old Sep 26, 2005 | 01:23 PM
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Almost forgot, after you take out the bolt, lift the bracket up to take it off. Then pull out the regulator.
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Old Sep 26, 2005 | 01:39 PM
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Are the 94-96 regulators not connected directly to the fuel line?? On my 93 the fuel line goes into the regulator first and than goes into the fuel rail. The fuel rail connection is a torx bit (40 or thereabouts) and an oring.

The fuel line connection requires a couple of open ends to break loose and that is where the new oring goes. I have not seen that step mentioned above.

And the pulling of the fuel rail is trivial as is twisting it to lay it upside down. It is made to do that. 4 8 mm bolts, lift the fuel rail and turn it upside down.

Might take 20 minutes if you go real slow and have to grab several tools to get the right size.

Perry
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Old Sep 26, 2005 | 03:15 PM
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Woo-hoo! All fixed up, no problem. And I did it without removing the fuel rail. Took about fifteen minutes. After a month of other problems, the 'Vette is finally 100%. Thanks to all of you for your help.
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