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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 03-04-2008, 09:37 PM   #1
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i need some help working on my Riviera. it only has 30 PSI of fuel pressure. not sure what else is wrong with it. but if there is anyone in there area let me know ASAP
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Old 03-04-2008, 11:39 PM   #2
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Let'* try some things. Key on, no start for 2 seconds. Do this three times. What'* your pressure?

Now start. What is it at idle?

Now pull the vac line off the FPR. What is it?

Now shut down. How long does it take to 'bleed down' 5-10 psi? Report back the time and the pressure drop.

After this, idle for 5 minutes. Shut down, pull the vac line off the FPR, and smell it. Do you smell fuel or not?

We can't troubleshoot with you if we don't know this information.
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Old 03-05-2008, 02:33 AM   #3
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I might be the nearest being over here in Syracuse. You seem to already have a fuel pressure gauge... Answering Will'* questions will go far in diagnosing the problem.
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Old 03-05-2008, 07:50 PM   #4
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ok thanks i will do this , this week end thanks for the help
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Old 03-08-2008, 12:52 PM   #5
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Quote:
Originally Posted by willwren
Let'* try some things. Key on, no start for 2 seconds. Do this three times. What'* your pressure?

Now start. What is it at idle?

Now pull the vac line off the FPR. What is it?

Now shut down. How long does it take to 'bleed down' 5-10 psi? Report back the time and the pressure drop.

After this, idle for 5 minutes. Shut down, pull the vac line off the FPR, and smell it. Do you smell fuel or not?

We can't troubleshoot with you if we don't know this information.
what if it wont stay running for 5 mins. it will start then die. or crank and when i push down the gas peddle then it will start
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Old 03-08-2008, 01:09 PM   #6
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Check for fuel in the vacuum line going to the fuel pressure regulator.
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