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1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 12-27-2003, 08:59 AM   #1
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Default how do you

release pressure off the fuel rail + all the fuel injectors?
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Old 12-27-2003, 09:26 AM   #2
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To prevent damaging the electrical systems, make sure the ignition key is in the OFF position when disconnecting or reconnecting the negative battery cable.

Fig. 1: Although a special tool is available, you can use a screwdriver to depress the fuel pressure connection, to relieve fuel pressure


1. Disconnect the negative battery cable to avoid possible fuel discharge if an accidental attempt is made to start the engine.
2. Loosen the fuel filler cap to relieve fuel tank vapor pressure.
3. If necessary for access, remove the fuel injector sight shield, then remove the fuel pressure connection cap.
4. Wrap a shop towel around the fuel pressure connection fittings while connecting the gauge to prevent fuel spillage.
5. Connect fuel pressure valve J 34730-1A or equivalent to the fuel pressure relief connection at the fuel rail.
6. Install a bleed hose into an approved container and open the valve to bleed the system pressure. The fuel system is now safe for servicing. Drain any fuel left in pressure gauge into the approved container.
7. Install the fuel filler cap.
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Old 12-27-2003, 02:21 PM   #3
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As Mos has just shown you, the value of a $15 service manual is invaluable.
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Old 12-27-2003, 05:35 PM   #4
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Quote:
Originally Posted by willwren
As Mos has just shown you, the value of a $15 service manual is invaluable.
i have one just dont use it often

cant read j/k
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Old 12-28-2003, 02:00 AM   #5
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Captain Obvious Says:

remeber kids, you're working with gasoline under pressure. Watch your eyes, no smoking, and be ready to clean up a potential mess.
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Old 12-28-2003, 03:33 AM   #6
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And if you have the book already, asking here and having someone go to the trouble of looking it up and posting it for you is rather selfish. This has happened to me in the past, and it'* not cool.
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Old 12-28-2003, 04:51 AM   #7
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calm down :P
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