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Re: What the #*%! was that all about?
Posted by Senor Don (more from Senor Don) on Fri, 16 Dec 2011 14:36:47
In Reply to: Re: What the #*%! was that all about?, Simon S, Fri, 16 Dec 2011 10:04:27

Bill Homer,

I agree with Simon S as to the problem being related to ignition moisture. You reported the engine ran smoothly at higher RPM's. That would suggest the ignition cassette is operating as designed- -a failing coil will misfire under load, or at high RPM. The heat likely dissipated the moisture.

You might want to remove the DIC and liberally fill the boots with dielectric grease and wipe off the ceramic portion of the spark plugs with a paper towel before refitting the cassette. Spray electric contact cleaner in the cassette connector and on DIC pins before reattaching them.

Happy SAABing

posted by 98.85.1...

Posts in this Thread:

What the #*%! was that all about?, Bill Homer, Fri, 16 Dec 2011 09:52:11
- How is it running now?, Noel , Sun, 18 Dec 2011 06:31:02
  - Still running fine, haven't touched anything, Bill Homer, Sun, 18 Dec 2011 07:03:29
    - most definitely an 'exception', Ken Fisher, Sun, 18 Dec 2011 09:01:22
      - Re: most definitely an 'exception', Simon S, Sun, 18 Dec 2011 09:36:58
- Re: I would check coil oil level in each coil...., DanaH, Sat, 17 Dec 2011 07:49:35
- let me say this about that...., marvinstockman, Fri, 16 Dec 2011 16:59:52
  - No CEL, Bill Homer, Fri, 16 Dec 2011 19:10:36
- another thing i didn't think of.. idle valve stuck?, Simon S, Fri, 16 Dec 2011 11:53:59
- Re: could be coil pack pre-failure mode, jack vines, Fri, 16 Dec 2011 11:33:01
  - Certainly plausible. nm, Simon S, Fri, 16 Dec 2011 11:50:29
    - Ready for this, used/tested DIC in trunk, Bill Homer, Fri, 16 Dec 2011 12:31:34
- Re: What the #*%! was that all about?, Simon S, Fri, 16 Dec 2011 10:04:27
  - Re: What the #*%! was that all about?, Senor Don, Fri, 16 Dec 2011 14:36:47
    - Re: Dielectric grease, BobS, Fri, 16 Dec 2011 19:26:13
      - Re: Dielectric grease, Simon S, Sat, 17 Dec 2011 08:56:12
        Re: Dielectric grease, BobS, Sat, 17 Dec 2011 16:47:01
        Re: Dielectric grease, seÃ±or Don, Sat, 17 Dec 2011 17:33:53
        Re: Dielectric grease, BobS, Sat, 17 Dec 2011 22:23:11
        Re: Dielectric grease, Simon S, Mon, 19 Dec 2011 08:58:23
        Re: Dielectric grease, BobS, Mon, 19 Dec 2011 18:52:58
        Re: Dielectric grease, Simon S, Sun, 18 Dec 2011 09:34:49
        Re: Dielectric grease, BobS, Sun, 18 Dec 2011 19:01:31
        Re: Dielectric grease, Simon S, Mon, 19 Dec 2011 08:54:44
        Re: Dielectric grease, BobS, Mon, 19 Dec 2011 18:39:45
      - Re: Dielectric grease, SeÃ±or Don, Sat, 17 Dec 2011 05:41:43
    - Failing coils don't always misfire at higher RPMs, jack vines, Fri, 16 Dec 2011 16:12:27
      - Re: Failing coils don't always misfire at higher RPMs, SeÃ±or Don, Fri, 16 Dec 2011 17:49:29
        No, the opposite: OK at higher RPMs, but idled poorly, Bill Homer, Fri, 16 Dec 2011 19:18:35
        You've got a spare DIC - why not use it?, jack vines, Sat, 17 Dec 2011 15:39:46
  - Fresh dielectric on the boots when plugs installed, Bill Homer, Fri, 16 Dec 2011 10:34:33
  - Possibly . . ., DaveinVA, Fri, 16 Dec 2011 10:12:07

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