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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 10-23-2003, 01:56 PM   #1
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Default Fuel questions

fuel sending unit
pressure regulator, and relay

are they one in the same if not..then where are each of these located on my 94 se..thanks
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Old 10-23-2003, 04:25 PM   #2
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Default Re: Fuel questions

Quote:
Originally Posted by 95neongirl
fuel sending unit pressure regulator, and relay. are they one in the same if not..then where are each of these located on my 94 se..thanks
Just off the top of my head:

Sending unit: In the fuel tank (if we're talking about the thingy that drives your gas gauge)

Pressure Regulator: On the fuel rail, top of the engine. Remove the plastic decorative top cover of the engine and you should see a little round canister on the fuel rail, with a vacuum line attached. (Do not confuse it with a similar gadget having a plunger rod coming out the bottom.) If you're trying to track a problem with warm re-starts: with the engine _off_, pull the vacuum line off the regulator. If it pees gasoline at you, replace it; its diaphragm is leaking gas into the vacuum lines.

Relay: In the Maxifuse/Relay Center on the firewall, although unfortunately I cannot remember which one it is.
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Old 10-23-2003, 04:45 PM   #3
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If you plan on monkeyin with the fuel pressure regulator, open the gas cap, and depressurize the fuel rail/lines via the schreader valve located on the fuel rail...located in front of the upper intake manifold if my memory serves me correctly...
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Old 10-23-2003, 06:16 PM   #4
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Try this link for info...

http://www.cybrrpartspro.com/Manual%...delLookup.html

Many thanks again to the original poster of that link!
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