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Thread: Crank no start

  1. 01-18-2020, 07:43 #1
    snarl
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    Default Crank no start

    So Friday I had a fishbite and stall episode. Pulled over truck started fine and ran great rest of the day. Saturday truck starts fine, run some errands and proceed to replace water pump and radiator. I had disconnected the positive cables. Got that all done and now the truck won't start.

    New PMD and cable
    Gutted fss
    Have fuel to ffm,out of air bleed,out of drain and to injection pump
    Fuel in clear retun line, moves a little when cranking
    Tried cranking with optical sensor unplugged and cps unplugged, no difference
    Have SES light when cranking. (power to ecm)
    No fuel out injector lines.
    Tried both pmd without extension harness
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  2. 01-18-2020, 12:05 #2
    Yukon6.2
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    Have you ever changed you ignition switch?
    90 Chev 3500 c/c 4x4,6.2na,400 auto,4:10 gears.DSG Timing gears,main girdle, isspro tach, pyro,boost,oil and trany temp.Dual Tstats, High volume peninsular pump,on shelf, Custom turbo and intercooler 85%complete. Change of plans for the dually, it's going to get a Cummins. Both trucks are Blue 90 4x4 crews
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  3. 01-18-2020, 13:14 #3
    snarl
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    No I haven't.
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  4. 01-19-2020, 11:19 #4
    Yukon6.2
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    My 98 has a bunch of electrical issues that went away after changing the switch.
    Same on my 2004 Topkick.
    90 Chev 3500 c/c 4x4,6.2na,400 auto,4:10 gears.DSG Timing gears,main girdle, isspro tach, pyro,boost,oil and trany temp.Dual Tstats, High volume peninsular pump,on shelf, Custom turbo and intercooler 85%complete. Change of plans for the dually, it's going to get a Cummins. Both trucks are Blue 90 4x4 crews
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  5. 01-19-2020, 19:26 #5
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    a5150nut
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    Ignition switch is little box on lower steering column not the key cylinder.
    "The Constitution is not an instrument for the government to restrain the people, it is an instrument for the people to restrain the government."
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    2006 K3500 D/A
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  6. 01-20-2020, 10:19 #6
    Yukon6.2
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    Not on my 98 or 04 they were mounted on the column behind the key tumbler.
    90 Chev 3500 c/c 4x4,6.2na,400 auto,4:10 gears.DSG Timing gears,main girdle, isspro tach, pyro,boost,oil and trany temp.Dual Tstats, High volume peninsular pump,on shelf, Custom turbo and intercooler 85%complete. Change of plans for the dually, it's going to get a Cummins. Both trucks are Blue 90 4x4 crews
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  7. 01-20-2020, 13:53 #7
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    Every GM I have owned had the switch on the top of the column about 6 inches or so down toward the firewall from the key unit.

    There is a rod that connects the sliding switch to the key/lock unit.

    Later ones that use the "chip key" may be different.
    (1) 1995 Suburban 2500 4x4
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  8. 01-21-2020, 12:38 #8
    Yukon6.2
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    No chip keys on my trucks
    90 Chev 3500 c/c 4x4,6.2na,400 auto,4:10 gears.DSG Timing gears,main girdle, isspro tach, pyro,boost,oil and trany temp.Dual Tstats, High volume peninsular pump,on shelf, Custom turbo and intercooler 85%complete. Change of plans for the dually, it's going to get a Cummins. Both trucks are Blue 90 4x4 crews
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  9. 01-22-2020, 05:43 #9
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    Our 2007 Avalanche has the chip key
    Spendy to get extras made.

    We only got one key with the rig....so had to get an extra.
    The 07 does not have a locking column either....I was surprised at that.
    (1) 1995 Suburban 2500 4x4
    (1) 1997 Astro
    (1) 2005 Suburban (Papa Smurf)
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  10. 01-26-2020, 06:47 #10
    phantom309
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    When the batteries have been disconnected,. The first start the glow plugs cycle off very quickly.
    Takes at least two tries,...
    1999 chev suburban C2500
    300,000 mi
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  11. 03-16-2020, 14:36 #11
    snarl
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    PCM was bad.
    1995 K3500 CCLB 6.5 turbo diesel
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  12. 03-17-2020, 06:32 #12
    DieselDavy
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    Thanks for reporting back! It's always nice to know how things turned out.
    How old/miles was the PCM?
    Dave
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  13. 03-21-2020, 18:39 #13
    snarl
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    Original as far as I know. 285000 miles
    1995 K3500 CCLB 6.5 turbo diesel
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  14. 04-09-2020, 12:31 #14
    phantom309
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    Quote Originally Posted by snarl View Post
    Original as far as I know. 285000 miles
    I'm a little confused your original post states otherwise,.??
    1999 chev suburban C2500
    300,000 mi
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  15. 04-09-2020, 16:15 #15
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    Quote Originally Posted by phantom309 View Post
    I'm a little confused your original post states otherwise,.??
    PMD. PCM. Meh. Same thing.
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  16. 04-12-2020, 06:43 #16
    phantom309
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    Quote Originally Posted by snarl;

    New PMD and cable



    Quote Originally Posted by DmaxMaverick View Post
    PMD. PCM. Meh. Same thing.
    You think i'm new here,?
    1999 chev suburban C2500
    300,000 mi
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  17. 04-13-2020, 07:36 #17
    snarl
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    ??????
    1995 K3500 CCLB 6.5 turbo diesel
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  18. 04-13-2020, 07:55 #18
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    Quote Originally Posted by snarl View Post
    ??????
    (Ditto)


    snarl (original post):
    New PMD and cable
    PCM was bad.
    DieselDavy:
    How old/miles was the PCM?
    snarl:
    Original as far as I know. 285000 miles
    phantom309:
    I'm a little confused your original post states otherwise,.??
    Me:
    PMD. PCM. Meh. Same thing.
    1985 Blazer 6.2
    2001 GMC 2500HD D/A
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  19. 04-15-2020, 09:56 #19
    snarl
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    PMD- Pump mounted driver
    PCM - Powertrain control module (the computer)
    1995 K3500 CCLB 6.5 turbo diesel
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  20. 04-16-2020, 09:06 #20
    Kennedy
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    Quote Originally Posted by snarl View Post
    So Friday I had a fishbite and stall episode. Pulled over truck started fine and ran great rest of the day. Saturday truck starts fine, run some errands and proceed to replace water pump and radiator. I had disconnected the positive cables. Got that all done and now the truck won't start.

    Is this a southern thing or something?
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