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Thread: CRANKS BUT NO START

  1. #1
    Join Date
    Mar 2002
    Location
    NEW YORK
    Posts
    47

    Post

    I HAVE A 94 SUB ALL STOCK HAS NEW INJECTERS NEW OPS NEW GLOW PLUGS INJ PUMP WAS BENCHED CHECKED AND IS PERFECT HAVE FUEL TO INJ PUMP BUT NOT OUT OF PUMP ALSO NEW PMD WIREING WAS ALL CHECKED HAVE 12 VOLTS TO THE PINK WIRE 5 VOLTS TO THE OPTICAL SENSER ALL WIRE WERE OEM TESTED GOOD IS THERE ANYTHING IM MISSING PLEASE LET ME KNOW THANKS BERT

  2. #2
    Join Date
    Apr 2004
    Location
    portland or
    Posts
    212

    Post

    i had same problem turned out the computer wasnt sending a signal to the fuel shutoff solenoid.i bypassed and put voltage directly to it,got it running then replaced the computer. could be your solenoid shutoff isnt opening i would check that.
    94 6.5l turbo engine code f
    homemade fsd/pmd cooler
    k&n air filter
    many goodies coming soon,oil cooler lines and 3.5" exhaust
    lots of 67-69 camaros

  3. #3
    Join Date
    Mar 2002
    Location
    NEW YORK
    Posts
    47

    Post

    THANK YOU I WILL TRY THAT AND LET YOU KNOW HOW I MADE OUT

  4. #4
    BUZZ Guest

    Post

    Bert,
    Did you run 12v to fuel shut down sol.? How did you make out?
    WE may be on to something here.
    Buzz

  5. #5
    rameye Guest

    Post

    interesting..

    94blue is having a similar problem..

    may be worth a check

  6. #6
    markrinker Guest

    Post

    Hmmm...might have same problem here.

    #1 was starting hard at temps below 15 degrees, regardless if plugged in or not. Suspected bad block heater (no hissing), ordered one from GM.

    New glow plugs and glow controller last season. Today cranks fast and long (new batteries this fall) but no signs of any combustion - no white smoke at tailpipe, no occasional firing. Lift pump clattering a LONG time after I stop cranking. (Tank full of fuel...)

    Added 400W oil pan magnetic heater in case it was just too cold. After 3 hours on, no change, except it cranks over faster due to warmer oil. Still no sign of any fuel being burned.

    What next? Where do I put power to test the fuel shutoff solenoid? If that doesn't solve the problem, I plan to replace the FSD with one of my spares. Any other ideas???

    UPDATE: FSD swap did not help. How do I test the fuel shutoff?

    [ 01-05-2005, 12:05 PM: Message edited by: Mark Rinker ]

  7. #7
    BUZZ Guest

    Post

    MArk, follow the 2 wires from sol. to a connector, usually left side of IP, 2 wire connector. Disconnect and apply 12v +/- and you should hear the valve cycle, click sound. If no click bad sol. Click could be good valve, weak valve, bad sig from PCM, bad ground. Check 12 volts at wire harness conn. with key in run. No 12 volts, blown fuse or bad ign sw.
    Any way if valve cycles try to start.
    I think
    Buzz

  8. #8
    Join Date
    Mar 2000
    Location
    Milton, Mass. U.S.A.
    Posts
    573

    Post

    Make sure the "fuel sol. fuse" in the under hood fuse box is good. GM wants you to pull this fuse when changing fuel filter to bleed the air out. It's easier to put the truck in gear and hold the key in the start position for this procedure. A bad fuel filter can give you fits too.
    Charlie P. <br />95 Tahoe 6.5 TD

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