UPDATE (not solved yet) - Saab 9000 Bulletin Board - Saabnet.com
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All,
After all of the advice, I decided to take a methodical approach. I started simple, and pulled the plugs.
They were gapped at 1.15 MM (or so), uniformly. None of them looked trashed or anything, and they weren't black, or scored, etc. I installed a new set of NGK's gapped to .95mm (I gapped them), and drove the car all other things being the same.
And...
It was better, but not perfect. It didn't seem to have the same issues at idle that it had before, but it would still hesitate a bit (less, though) on acceleration on on ramps, etc. I ran it through the full temp range, and probably drove 50 miles today that way.
So it is better, but not perfect.
I also filled it up with Fuel from a gas station near my house that I know and has never given me bad fuel. I run Dry Gas through it as a matter of course, so I doubt water fouling.
Next up is taking a look at vaccuum lines, I think.
What lines to check? (and yes... I know "all of them" is the answer)
Which ones are most likely to cause issues like this? I want to replace them one at a time, and see if I nail it just right to help others with this.
-Dan
Posts in this Thread:
- Hesitation and "missing" diagnosis, dbreid
, Thu, 14 Jan 2010 10:38:14- UPDATE (not solved yet), dbreid
, Sun, 17 Jan 2010 22:40:56 <-- Viewing This Message - One more thing, Dick in Falls Church, Sat, 16 Jan 2010 08:19:40
- Check and clean Fuel pump..., Derf, Fri, 15 Jan 2010 19:50:11
- Re: Do plugs and vacum lines (all) first, DanaH, Fri, 15 Jan 2010 13:02:07
- Re: Hesitation and "missing" diagnosis, Saabnutt, Thu, 14 Jan 2010 21:42:54
- Re: Hesitation and "missing" diagnosis, oldsaab, Thu, 14 Jan 2010 21:24:01
- Re: Fuel Delivery?, davidk, Thu, 14 Jan 2010 12:47:42
- Re: Hesitation and "missing" diagnosis, Simon S, Thu, 14 Jan 2010 12:43:11
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