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can fouled plugs cause a no start condition?

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  • can fouled plugs cause a no start condition?

    well i tried all day to get it started today, no luck.

    ive got fuel pressure, pump is priming, injectors are injecting...

    i used a timing light on the wires to see if it was firing...some were some werent... i tried a new icm and coils...no change.

    took the crank sensor and waved my pocket knife in front, i can hear the injectors firing and a few of the lugs will light up, but not all

    i took the plugs outa the rear bank and cleaned them with a wire whhel and brake clean, it got a few chugs and thats it. they are deffinatly fouled. so i bought new plugs right after i got off work and i wont beable to put them in till the morn.

    my question is would fouled plugs cause me not to see the spark on some wires (using a timing light)? could they cause a no start?

    i have power at the coil, all grounds check out, all power checks out, injector drivers are pulsing, and im just stuck.

    it was really raining good yesterday and i fear that had something to do with it.

    if its not one thing its the next. i love this car
    3500, 1280 cam and PR, ls6 valve springs, port and polished heads, ported lim, ported uim, 4.3 70mm tb, ported trueleo headers and y pipe ALL FOR SALE (minus the car)
    96 LT4 6spd corvette. 355, AI 215cc LT4 Comp CNC Heads, Prope SRS pistons, Ported intake, ARH long tubes, Corsa Indy Pace 4:10 gears
    2012 Chevy Sonic Turbo 6spd
    1970 M35A2 Deuce and a Half, Spin on filters, Turned up IP, HIDs, Flat Black, 11.00x20 singles.

  • #2
    Absolutely. If there is fuel on the plugs they will not spark.
    1993 EXT. CAB, 3.4L V6 TBI, 5spd manual. Sonoma
    1990 4Door, 3.2L V6 TBI, 5spd manual. 4X4. Trooper
    Because... I am, CANADIAN

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    • #3
      i had this exact thing happen today.. car would randomly pop out the exhaust while cranking.. all 6 plugs were fowled to hell.
      Past Builds;
      1991 Z24, 3500/5 Spd. 275WHP/259WTQ 13.07@108 MPH
      1989 Camaro RS, ITB-3500/700R4. 263WHP/263WTQ 13.52@99.2 MPH
      Current Project;
      1972 Nova 12.73@105.7 MPH

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      • #4
        i got one good backfire...sounded like a shot gun going off. everybody came running out of the shop to make sure i was alive. the police even showed up. lol. bout the only fire i had today tho

        k new plugs it is....
        3500, 1280 cam and PR, ls6 valve springs, port and polished heads, ported lim, ported uim, 4.3 70mm tb, ported trueleo headers and y pipe ALL FOR SALE (minus the car)
        96 LT4 6spd corvette. 355, AI 215cc LT4 Comp CNC Heads, Prope SRS pistons, Ported intake, ARH long tubes, Corsa Indy Pace 4:10 gears
        2012 Chevy Sonic Turbo 6spd
        1970 M35A2 Deuce and a Half, Spin on filters, Turned up IP, HIDs, Flat Black, 11.00x20 singles.

        Comment


        • #5
          know of any plugs that are a heat range warmer? all the local guys at the part stores are idiots and cant help me.
          3500, 1280 cam and PR, ls6 valve springs, port and polished heads, ported lim, ported uim, 4.3 70mm tb, ported trueleo headers and y pipe ALL FOR SALE (minus the car)
          96 LT4 6spd corvette. 355, AI 215cc LT4 Comp CNC Heads, Prope SRS pistons, Ported intake, ARH long tubes, Corsa Indy Pace 4:10 gears
          2012 Chevy Sonic Turbo 6spd
          1970 M35A2 Deuce and a Half, Spin on filters, Turned up IP, HIDs, Flat Black, 11.00x20 singles.

          Comment


          • #6
            just pull all yours out and sandblast them clean.

            i did that earlier and they work like new again
            Past Builds;
            1991 Z24, 3500/5 Spd. 275WHP/259WTQ 13.07@108 MPH
            1989 Camaro RS, ITB-3500/700R4. 263WHP/263WTQ 13.52@99.2 MPH
            Current Project;
            1972 Nova 12.73@105.7 MPH

            Comment


            • #7
              dont have a sandblaster. just got some new ngk tr55 for $9

              car fired up on the first crank
              3500, 1280 cam and PR, ls6 valve springs, port and polished heads, ported lim, ported uim, 4.3 70mm tb, ported trueleo headers and y pipe ALL FOR SALE (minus the car)
              96 LT4 6spd corvette. 355, AI 215cc LT4 Comp CNC Heads, Prope SRS pistons, Ported intake, ARH long tubes, Corsa Indy Pace 4:10 gears
              2012 Chevy Sonic Turbo 6spd
              1970 M35A2 Deuce and a Half, Spin on filters, Turned up IP, HIDs, Flat Black, 11.00x20 singles.

              Comment

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