[V8] Failing Speedo - Sensor p/n?

Fri Jan 5 12:53:34 EST 2007

Incorrect:

there are pins that interconnect the different boards to each other. those pins tend to crack
loose from the board. speedo, fuel guage, and oil pressure problems are all symptoms. I have
repaired BOTH of my v8's due to this problem. Ingo has a write up on it somewhere, or I could do
another one.

--- dsaad at icehouse.net wrote:

> I wouldn't be so quick to dismiss the sender.
> The amount of "shock" you can administer by whacking the dash is pretty minimal,
> and the connections are just not that fragile.
> It is more likely that it just springs back to life near the same moment you
> smack it.
> It is also pretty hard to believe that the speedo wire always goes bad somewhere
> but the hundreds of other wire connections do not - many people have had the
> exact same failure/symptom and for me at least a new sender fixed it.
> The V8 cluster is not at all like the 100/200 clusters and do not suffer from
> the cracked flexible trace problem they had.
> 
> Soldered connections do not normally fail - all cars have thousands of them. The
> only weakness I found in the V8 dash was the solid wire ribbon cables that
> connect the various pieces together. You could in fact have an intermittent
> there, but resoldering the connections is un-likely to fix it because the crack
> happens inside the molded plastic part where the "pin" attaches to the solid
> wire. The only fix here is to replace the ribbon or rewire with individual
> strands. (that is what I did)
> 
> Anyway - if you want to be sure, put a meter on the sender wire and drive
> around. You will see exactly where the problem is this way. If you want to prove
> it is/is not the sender, measure at the first connection point you can down
> stream from the sender. I think this is at one of the Kostal connectors.
> If the signal drops out down there, there is no reason to tear into the dash.
> 
> 
> Dave
> 
> 
> 
> Quoting Jeremy Ward <jward.v8 at gmail.com>:
> 
> > And if you whack it (open palm on the top of the dash)?  Mine usually
> > springs back to life; definitely not a speed sensor.
> >
> > I've had the IC out 3 times to clean and 'enhance' the contacts where the 5
> > (?) pins come out of the circuit board and meet the sockets of the
> > speedometer, but I need to do 'the fix' that Ingo prescribes where you
> > de-solder / re-solder the pins where they meet the circuit board...
> >
> > You know, before I had 3 kids, I had gobs of free time...
> >
> > - Jeremy
> >
> > -----Original Message-----
> > From: v8-bounces at audifans.com [mailto:v8-bounces at audifans.com] On Behalf Of
> > Scott Baumann - PTS Power
> > Sent: Wednesday, January 03, 2007 9:13 AM
> > To: 'Coleman, David'; Steven.Buchholz at kla-tencor.com; v8 at audifans.com
> > Subject: Re: [V8] Failing Speedo - Sensor p/n?
> >
> > YES - my odometer also quits working, as well as the cruise control and the
> > computer goes nuts.  Does this tend to point more towards the IC, or more
> > the sending unit?
> >
> > -----Original Message-----
> > From: v8-bounces at audifans.com [mailto:v8-bounces at audifans.com] On Behalf Of
> > Coleman, David
> > Sent: Tuesday, January 02, 2007 9:13 PM
> > To: Steven.Buchholz at kla-tencor.com; v8 at audifans.com
> > Subject: Re: [V8] Failing Speedo - Sensor p/n?
> >
> > Does your odo quit at the same time?
> >
> >
> > --------------------------
> > David A. Coleman
> > BlackRock
> > Sent via BlackBerry Wireless
> >
> >
> > -----Original Message-----
> > From: v8-bounces at audifans.com
> > To: v8 at audifans.com
> > Sent: Tue Jan 02 17:15:37 2007
> > Subject: Re: [V8] Failing Speedo - Sensor p/n?
> >
> > .... I'm seeing some odd speedo behavior on #344 too ... very weird ... it
> > works fine most of the time, but all of a sudden the speedo drops to -0- for
> > some period of time and stays there.  It seemed to be most consistent if I
> > took the car for a short errand run ... when leaving the place I'd have no
> > speedo ... but I see it mid trip on longer runs too ... after a minute or
> > two the speedo comes back.
> >
> > I had convinced myself it was the speed sender in the tranny because the
> > trip computer was showing zero speed as well ... but upon further head
> > scratching I realized that the speedo is likely to be sending the signal to
> > the trip computer ...
> >
> > I'd say that before plunking down the bucks for a new sender that you do
> > some tests to eliminate the instrument cluster as culprit.
> >
> > A very long time ago there was a V8 lister who claimed to have schematics
> > for the V8 IC ... boy, I would really have loved to get copies of them!
> >
> > Steve B
> > San José, CA (USA)
> > >
> > > I have a failing speedo (dropping to 0, then springing back up).  I
> > suspect
> > > it's the speed sensor.  Does anyone have a recommendation (other than the
> > > dealer) for a new sensor?  Any known partnumbers?  Thanks!
> >
> > _______________________________________________
> > Audifans V8 mailing list
> > Send posts to: mailto:V8 at audifans.com
> > Manage your list connection: http://www.audifans.com/mailman/listinfo/v8
> > Have an Audi V8 question?  Check the Audifans Knowledgebase!
> > http://www.audifans.com/twiki/bin/view/Audi/V8
> > Have a V8 answer? ... Please help others by adding to the KB ... all
> > contributions welcome!
> >
> > THE INFORMATION CONTAINED IN THIS MESSAGE AND ANY ATTACHMENT MAY BE
> > PRIVILEGED, CONFIDENTIAL, PROPRIETARY OR OTHERWISE PROTECTED FROM
> > DISCLOSURE. If the reader of this message is not the intended recipient, you
> > are hereby notified that any dissemination, distribution, copying or use of
> > this message and any attachment is strictly prohibited. If you have received
> > this message in error, please notify us immediately by replying to the
> > message and permanently delete it from your computer and destroy any
> > printout thereof.
> > _______________________________________________
> > Audifans V8 mailing list
> > Send posts to: mailto:V8 at audifans.com
> > Manage your list connection: http://www.audifans.com/mailman/listinfo/v8
> > Have an Audi V8 question?  Check the Audifans Knowledgebase!
> > http://www.audifans.com/twiki/bin/view/Audi/V8
> > Have a V8 answer? ... Please help others by adding to the KB ... all
> > contributions welcome!
> >
> >
> > _______________________________________________
> > Audifans V8 mailing list
> > Send posts to: mailto:V8 at audifans.com
> > Manage your list connection: http://www.audifans.com/mailman/listinfo/v8
> > Have an Audi V8 question?  Check the Audifans Knowledgebase!
> > http://www.audifans.com/twiki/bin/view/Audi/V8
> > Have a V8 answer? ... Please help others by adding to the KB ... all
> > contributions welcome!
> >
> > _______________________________________________
> > Audifans V8 mailing list
> > Send posts to: mailto:V8 at audifans.com
> > Manage your list connection: http://www.audifans.com/mailman/listinfo/v8
> > Have an Audi V8 question?  Check the Audifans Knowledgebase!
> > http://www.audifans.com/twiki/bin/view/Audi/V8
> > Have a V8 answer? ... Please help others by adding to the KB ... all
> > contributions welcome!
> >
> 
> 
> 
> _______________________________________________
> Audifans V8 mailing list
> Send posts to: mailto:V8 at audifans.com
> Manage your list connection: http://www.audifans.com/mailman/listinfo/v8
> Have an Audi V8 question?  Check the Audifans Knowledgebase!
> http://www.audifans.com/twiki/bin/view/Audi/V8
> Have a V8 answer? ... Please help others by adding to the KB ... all contributions welcome!
> 

__________________________________________________
Do You Yahoo!?
Tired of spam?  Yahoo! Mail has the best spam protection around 
http://mail.yahoo.com 