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Type: Posts; User: Rukee

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  1. Thread: No Spark # 7

    by Rukee
    Replies
    38
    Views
    1,832

    Yeah, thanks. Can you pull the lifter(s) out with...

    Yeah, thanks. Can you pull the lifter(s) out with the heads on?
  2. Thread: No Spark # 7

    by Rukee
    Replies
    38
    Views
    1,832

    Okay, took it to the dealership and they flashed...

    Okay, took it to the dealership and they flashed the computer and they are saying it does have spark, but it's still missing on # 7, then added that # 7 intake valve was not opening so it must either...
  3. Thread: No Spark # 7

    by Rukee
    Replies
    38
    Views
    1,832

    Used PCM installed and still no crank. I can make...

    Used PCM installed and still no crank. I can make it crank at the relay, but not with the key. MC is saying "Service Theft Deterrent System". Dealer only thing? Or is there something else I could do?
  4. Thread: No Spark # 7

    by Rukee
    Replies
    38
    Views
    1,832

    Will I harm anything by trying it?

    Will I harm anything by trying it?
  5. Thread: No Spark # 7

    by Rukee
    Replies
    38
    Views
    1,832

    Can I just plug in the used PCM and drive it to...

    Can I just plug in the used PCM and drive it to the dealer for programming?
  6. Thread: No Spark # 7

    by Rukee
    Replies
    38
    Views
    1,832

    okay, worth a shot, thanks.

    okay, worth a shot, thanks.
  7. Thread: No Spark # 7

    by Rukee
    Replies
    38
    Views
    1,832

    I'm F***ed anyway. When I pried the back off the...

    I'm F***ed anyway. When I pried the back off the PCM I must have damaged it somehow cause now it won't crank over. :(
  8. Thread: No Spark # 7

    by Rukee
    Replies
    38
    Views
    1,832

    I found this picture of the coils, looks like all...

    I found this picture of the coils, looks like all the "B" wires are tied together so now I just need to figure out which pin is 72 on the PCM plug.

    - - - Updated - - -

    I didn't really want to,...
  9. Thread: No Spark # 7

    by Rukee
    Replies
    38
    Views
    1,832

    Yeah, there is no green/damaged pins when I...

    Yeah, there is no green/damaged pins when I unplug the PCM and I can see no chaffing or rubbed wires. Called around for a used PCM but they said it had to be programed at the dealership. Really hate...
  10. Thread: No Spark # 7

    by Rukee
    Replies
    38
    Views
    1,832

    Thank you for that. I do have a good ground on...

    Thank you for that. I do have a good ground on the black wire and battery voltage at the pink wire, so now it's down to either the B or C wire are broken, or the PCM is burnt out for the # 7 cyl....
  11. Thread: No Spark # 7

    by Rukee
    Replies
    38
    Views
    1,832

    I bought a new coil for # 7. I wouldn't expect 2...

    I bought a new coil for # 7. I wouldn't expect 2 coils in a row to be bad. But I can swap it easy enough with the one next to it.

    - - - Updated - - -

    Swapped with the # 5 coil and wire miss...
  12. Thread: No Spark # 7

    by Rukee
    Replies
    38
    Views
    1,832

    It may very well have more then one cyl miss...

    It may very well have more then one cyl miss firing, but # 7 is all but totally dead. The timing light might flash once or twice a minute on # 7. Fuel pressure holds steady at 60psi. No other codes,...
  13. Thread: No Spark # 7

    by Rukee
    Replies
    38
    Views
    1,832

    okay, but fuel pressure is not going to kill the...

    okay, but fuel pressure is not going to kill the #7 coil ! Like I said the # 7 has no spark when checking with a timing light, all other cyl's do.
  14. Thread: No Spark # 7

    by Rukee
    Replies
    38
    Views
    1,832

    I have a scan tool that turns off the CEL, but as...

    I have a scan tool that turns off the CEL, but as soon as the truck runs with the dead miss on #7 for a few seconds, it sets the p0300 code.
  15. Thread: No Spark # 7

    by Rukee
    Replies
    38
    Views
    1,832

    Thanks for that, but reading that thread it...

    Thanks for that, but reading that thread it states it's only deactivating the lifters, not the coils, so I'm thinking I have something else going on. If it was the AFM, then I would still have spark...
  16. Thread: No Spark # 7

    by Rukee
    Replies
    38
    Views
    1,832

    Sorry, what is AFM?

    Sorry, what is AFM?
  17. Thread: No Spark # 7

    by Rukee
    Replies
    38
    Views
    1,832

    Yeah, so sorry `07 Sierra 6.0 L. Just stared out...

    Yeah, so sorry `07 Sierra 6.0 L. Just stared out of the blue driving down the highway. Totally stock. With the timing light hooked up # 7 does flash, but only like once or twice every 10 seconds or...
  18. Thread: No Spark # 7

    by Rukee
    Replies
    38
    Views
    1,832

    No Spark # 7

    Hi everyone, first post here hoping you guys can help me out.
    I have no spark on # 7. have put new plugs, wires and a coil on that cyl but still no spark when testing with a timing light and I get a...
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