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She died just as I was getting ready to store it for the winter.

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  • #1

    She died just as I was getting ready to store it for the winter.

    Any LT1 guys have there motor hydrolock with fuel? My 3,5 and number 7 cylinder was full of fuel. It all started when I went to put my car in my garage. Went to start it and it didn't fire right away like usual. Started again and it fired but ran rough and died. Started it a third time and no fire. It started binding up. Thought mechanical at first till I smelled a strong odor of gas. Pulled the plugs on the left side because of ease of access and found 3 5 and 7 wet. Left plugs out, unplugged ICM to shut off spark then cranked it over. Turned over smoothly but blew gas all over engine bay. Havent really jumped into yet. Putting it away for the year so I'll tackle it next spring. But would like ideas. So far I'm thinking ICM or computer. It's getting signal from opti to turn on injectors to send fuel. But not firing to burn off fuel. But why is 3,5 and 7 the only ones wet with fuel and not 1. That would make me think computer. If ICM was bad all cylinders should be wet with fuel. Not just 3 out of the 4 on left side. Haven't looked at right side yet. Too hard. Lol. So I would just like some input to see if anyone else out there has had similar issues with their 94 LT1'S. Thanks in advance. [emoji5]

    Sent from my SAMSUNG-SGH-I337 using Tapatalk
    Tags: bad, car, computer, engine, fuel, gas, guys, ideas, injectors, issues, king, left, lol, lt1, motor, side, spark, spring, started, store, thinking, thought, time, winter, year
  • #2
    The pcm turns the injectors on and off by providing a momentary ground to the appropriate circuit. Use a noid light to test the injector curcuit function.
    Also, the pcm fires the injectors based on information it gets from the optispark. So you may have to look there.

    Further, based on the amount of fuel that came out of the cylinders . Check the oil for fuel contamination. If its way over full or if it smells like gas change it before you try to fix it or start it again.
    Last edited by zeeman; October 25th, 2015, 01:25 PM.

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    • #3
      Found out fuel pressure regulator was blown. Gas was getting blown through the vacuum line into the intake.

      Sent from my SAMSUNG-SGH-I337 using Tapatalk

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      • #4
        Yikes! Ive got a regulator on its way out, guess id better get on that
        -Joel
        1995 Z28 M6 - AI226/234 - autocross ricer
        1984 Scottsdale K10 - 305/4bbl/4spd


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