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Old 04-19-2006, 02:39 AM   #1
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Default lumina

well not a 3800 but it has the 3.1
My friend has a Lumina 3.1 Euro that when started will almost immediatly die or will die as soon as you give it gas. The Fuel pump was just replaced so I thought it might be the FPR.
When I pulled the vac line a large amount of gas came out which makes me think this whole problem is FPR

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Old 04-19-2006, 08:08 AM   #2
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Might want to ask on the w-body.com forum or the 60degreev6.com forum.

If you suspect a fuel problem plug a fuel pressure gauge into the rail. On the end of the rail there should be what looks like a valve stem cap. Take that off and there is a schrader valve to put a fuel pressure gauge on. It should have over 40psi fuel pressure.
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Old 04-19-2006, 10:26 AM   #3
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If your getting fuel into the vac line the regulator is bad. Might not fix the problem but you shouldn't have any fuel in the vac line to the FPR.
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Old 04-19-2006, 09:40 PM   #4
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bad lockup?

torque convertor could be locking or having a bad sensor that locks the torque convertor in, stalling the engine

possibly.
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Old 04-19-2006, 09:47 PM   #5
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What year is this Lumina?

And regaurless of the real issue, replace the FPR...

I also agree with Shawn, check the fuel pressure..

Also does the car run for a brief 2 or 3 seconds and then die?

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Old 04-19-2006, 10:24 PM   #6
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yea and when I took the vaccume line off the fpr the idle got alot better and it stated on for a good 30 secs

btw the fuel pressure sticks at 40 PSI
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Old 04-19-2006, 11:51 PM   #7
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Quote:
Originally Posted by 1337ssei
yea and when I took the vaccume line off the fpr the idle got alot better and it stated on for a good 30 secs

btw the fuel pressure sticks at 40 PSI
Did it still stall after that 30 seconds?

Quote:
What year is this Lumina?
Its a Euro, so it has to be a '90-'94. Which makes it a Gen II 3.1.
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Old 04-20-2006, 02:44 AM   #8
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In which case the FPR is a major P.I.T.A. to replace. Upper intake comes off. Fuel rail comes off. FPR is unbolted from both rails. Blah blah blah. It sucks to do.

EDIT: I guess the answer to your question is REPLACE THE FUEL PRESSURE REGULATOR. If it'* leaking that bad, that'* why it'* stalling out right away. It'* flooding the motor.
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Old 04-20-2006, 11:05 AM   #9
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I would replace the FPR. I bet that will fix the problem. When you give it gas it just sucks more fuel from the FPR and causes the engine to die. If it was the tq converter it would die as soon as it'* put in to gear.
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Old 04-20-2006, 09:27 PM   #10
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alot guys I know next to nothing about the 3.1 luckily he has the chiltons so maybee it wont be as bad

he does'nt have much money anyone see it cheaper than this?
http://www.partsamerica.com/ProductD...pe=484&ptset=A
also if I go to a junker what cars have the same engine?
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