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Jul 7, 2011 | 06:04 AM

rockrat

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Cruising

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wont start

I bought a 1985 corvette and it sat for around 6 years, i put a new battery in it and it has a jumper wire to bypass the alarm system. It started everday for about 2 days. Now it will not start. I smell gas in oil, found gas on spark plugs, cleaned them and put them back in. any help would be appreciated. thanxs

Jul 7, 2011 | 08:04 AM

87 vette 81 big girl

Melting Slicks

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There is pin hole in the Fuel Pressure regulator diaphragm allowing gasoline to leak into the intake system/ or a fuel injector(s) is leaking during engine shutdown.

Replace all 8 spark plugs.
Once gasoline fouled out, spark plugs seldom ever clean up without engine misfiring or even allowing an engine to start up.

Brian

Jul 7, 2011 | 08:29 AM

rockrat

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Cruising

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how do you tell which fuel injector is leaking? How do you fix this problem

Jul 7, 2011 | 08:36 AM

rockrat

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I would also like to know if the jumper wire to bypass security system turns off the warning light?

Jul 7, 2011 | 08:38 AM

Muffin

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From: Merritt Ils Fl

Quote:

Originally Posted by rockrat

how do you tell which fuel injector is leaking? How do you fix this problem

Change them all.

Jul 7, 2011 | 09:05 AM

rockrat

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i would like to know during shut down, how much pressure should be on fuel rail? When running how much pressure should be on the fuel rail?

Jul 7, 2011 | 09:05 AM

AGENT 86

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From: Summerland B.C. Canada

Do you have a fuel pressure gauge ?

Is there fuel in the vacuum line to regulator ?

Jul 7, 2011 | 10:20 AM

383vett

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From: moraga ca

If all the plugs are wet, chances are it would be the fuel pressure regulator. You should get around 40 psi with the motor off and the key on. It should hold for a short time. If the pressure goes right down, fuel is probably leaking through the diaphram into your intake and causing the excess gas problem. As Rodj mentioned, pull the vacuum line going to the regulator. If there is fuel in the line, change the regulator or diaphram and of course the oil before starting. Might want to squirt some wd40 in the cylinders to give them some lubrication before starting.