[Shotimes] RE: wiring harness chafing TSB- was rear valve cover

[Russ M.]

  TSB 90-21-7 deals with poor engine performance due to wiring harness
12A581 chafing on the intake plenum support bracket studbolt (at ~12"
from PCM connection).
  Fix is to repair wiring, and replace studbolt with #90119-08153
standard hex-head bolt (8-1.25x35).

  Russ




--- Kurt Metros <kurt@elkhart.net> wrote:
> Bruce,
> 
> What Mark is suggesting isn't a bad idea.  The reason I say this is
> because some people have had problems with the lower bolt for the
> intake
> support rubbing through one of the harnesses.  When we had Kegels' 91
> apart his outer wrap was worn through and lots of the insulation on
> one
> or two of the wires had worn off.  We wrapped it in lots of
> electrical
> tape, which will take a while to wear through again.
> 
> I first discovered this on my old 89 - it would buck when I'd jump on
> it....took forever to find, but basically when I would accelerate
> hard
> the engine and consequently the bolt head would jump back and hit a
> wire
> that had all the insulation worn off, short it out and cause the
> bucking.  When I'd take my foot off the gas the bolt would come off
> the
> wire and it would run fine.  It was madding to figure out.  I
> discovered
> it when I started tearing everything I could out and disconnecting,
> examing, and cleaning as many of the electrical connectors I could.
> 
> Just a thought...
> 
> Kurt
> 


__________________________________________________
Do you Yahoo!?
Yahoo! Tax Center - forms, calculators, tips, more
http://taxes.yahoo.com/