Stumble/miss/hesitate Was: 82 wiring diagram PDF needed...

[kkrup62 at hotmail.com (Karl Krupke)]

Heya,
    Yeah, as Cathy says just because you've replaced a component don't 
assume the new one is good, not always the case unfortuneatly. As much as 
possible try to isolate components, test for function one at a time, 
systematically. Time consuming and rewards are slow, but it's the only way 
to track down some problems.
    Also, from your description, I start hearing this little voice in back 
of brain saying "Vacuum leak". A cracked boot might appear and feel intact, 
but under load or acceleration, when the engine pushes against the mounts 
the boot will flex and open up. It can be cyclic, in that you make a leak, 
the engine coughs and the flex reduces; now the engine has good flow and you 
start the cycle again. Hope that makes sense...
    Good luck.

Karl

>From: "C Boyko" <roccit_53@scirocco.cs.uoguelph.ca>
>Reply-To: roccit_53@scirocco.cs.uoguelph.ca
>To: Neptuno <neptunonc@yahoo.com>
>CC: scirocco-l@scirocco.org
>Subject: Re: Stumble/miss/hesitate Was: 82 wiring diagram PDF needed...
>Date: Sat, 30 Sep 2006 23:02:03 -0400
>
>On 10:24 pm 09/30/06 Neptuno <neptunonc@yahoo.com> wrote:
> >
> >
> >
> > Air flow sensor is fine, but if my next round of parts swapping
> > tomorrow doesn't fix the problem I'll borrow a friend's fuel pressure
> > gauge. I'm going to try swapping out the knock box first, and then
> > one of the many fuel distributors I have lying around...
> >
> > Here's another symptom: at steady city speeds when I accelerate it'll
> > stumble and surge continuously right to redline, unless the pedal is
> > floored (the stumble/surge isn't nearly as noticeable, but still
> > there). Cruising along at highway speeds it'll stumble/miss quite a
> > bit, and I have to apply much more throttle than normal to maintain
> > speed, with fuel milage suffering as a result.
> >
> > Hopefully I'll figure it out tomorrow...
> >
> > Bad distributor?
> >
>Good luck Mark, I sure do feel your pain. I was there not long ago, mine
>was a bad distributor, but the symptoms are so general, who knows eh? Just
>don't trust anything you've replaced already, that was the factor that
>prolonged my pain, distrubutor three was the charm.
>cathy
>
>
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