Re: 164LS coil failure?

["Daegrigg (Don)" <daegrigg@domain.elided>]

Steve,

Your gremlin could be sourced by a number of things but here are some
"triage" questions that might help narrow the suspect list.

1.  Have you checked the error codes - if so what are they.

2.  Some of your symptoms could be fuel related - -Have you checked fuel
pressure at the rail
Loose or open hoses in the plumbing into the plenum
Fuel pressure regulator operation ?

3.  If problems started after replacement of the transmission,  double check
sensor wires to and from as well as other wires and vacuum hoses that were
disconnected in the process such as idle adjustment hose, AFM connector,
cruise control vacuum pipe, gear box, sensor, ground strap, and others.
The point here is that it is very easy to overlook an important connection
(such as the ground strap) and still have the car run.

Did you do the work yourself?  If done by a professional mechanic, you might
consider taking back for him to troubleshoot, i.e., he missed something in
the reassembly.

Hope this helps,

Don
PS.  CAUTION.  Don't overcrank.  You run the risk of excess fuel in the
plenum, starter wear and too low voltage to start the car (See Fred's
comments on this in an earlier post.)

----- Original Message -----
From: "Morgan, Steve" <steve.morgan@domain.elided>
To: <alfa@domain.elided>
Sent: Tuesday, January 21, 2003 9:25 AM
Subject: Re: 164LS coil failure?


> >I am experiencing an intermittent "stumble" or "miss" usually at highway
> >speeds on my 164LS - I think it may be one of the coils starting to fail.
> >Does anyone know how I diagnose this exactly and if so how to determine
> >which of the six coils is going bad?
> >>Paul:
> >>    Um, me too! But I don't think it's the coils. I have an sport auto
> >>transmission '94 version. Upon hard acceleration, it would stumble.
> >>Just intermittently, not repeatable.
>
> My 91 164S 5 spd doesn't stumble, it trips.   I haven't tried to reproduce
> the problem because it trips hard, and not on hard acceleration! It feels
as
> though I've reached the rev limiter, only harsher.  I think it kicks at
> about 4500 rpm, but can't be certain. It began by having some starting
> troubles, and now doesn't seem to be getting fuel.  It turns and turns and
> turns. This just after replacing the transmission.  I'm guessing a bad
relay
> or sender, something electronic and magical. :(
>
> Thoughts?
>
> Steve Morgan
> --
> to be removed from alfa, see /bin/digest-subs.cgi
> or email "unsubscribe alfa" to majordomo@domain.elided
--
to be removed from alfa, see /bin/digest-subs.cgi
or email "unsubscribe alfa" to majordomo@domain.elided