[V8] So what is bad/going bad here - Temp gauge pegged on overheat?

[Ingo Rautenberg]

Well, yes, for the other stuff -- which still works perfectly.  Went  
over it again yesterday looking for any suspicious spots, but  
couldn't find any. Applied some DeOxit to all of the pins.  As I  
believe Dave Head explained a few years back, the newer (92?+)  
Instrument clusters were changed in that many of the multiple pin  
contacts between the front and back circuit boards were eliminated in  
favor of soldered mylar encapsulated ribbons -- likely to prevent  
problems due to oxidized/cracking solder joints and pins.  Will check  
for any change tonight.  Did lots of test driving yesterday.  Man, I  
love this car!

Ingo

On Apr 8, 2007, at 9:08 PM, Tim Hollister wrote:

>
> I thought you worked the 5spd cluster over already?. I would try  
> swapping the temp guage and board
> over to the 5spd cluster.
>
>
> --- Ingo Rautenberg <ingo.rautenberg at gmail.com> wrote:
>
>> So I couldn't figure out what was going on with the temp gauge stuck
>> on overheat.  Once the black connector was removed the gauge would
>> return to the normal min/off position.  This connector only supplies
>> current to the board, for the most part, specifically circuits 30,31
>> and 15.  Anyhow, in the interim, I've replaced the IC with the one
>> from my project, er, parts car and everything seems to work except I
>> now have that annoying PRD321 display - annoying when you have a
>> manual tranny ;-)  I'm sure I can disable that without much trouble.
>> Of course, this IC isn't perfect -- 720 miles to empty?  I don't
>> think so!
>>
>> Ideas regarding the bad circuit/tracde solder joint on the original
>> instrument cluster?
>>
>> Ingo
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