[V8] black soot out rear pipes

[William Gutierrez]

I think the top end cleaner is a good idea, or just squirt some water in the 
intake manifold with the engine revving--basically, F1 technology, which 
works magic in cleaning up the combustion chamber.  I would check two items 
though which may be causing the black soot (1) check the fuel pressure 
regulator and (2) the oxygen sensor.  My black soot problem was virtually 
eliminated after I replaced the FPR.

Good luck

Bill G


>From: Ron Wainwright <ron_01056 at yahoo.com>
>To: v8 at audifans.com
>Subject: [V8] black soot out rear pipes
>Date: Thu, 19 Aug 2004 17:53:51 -0700 (PDT)
>
>   Listers,
>
>   A fellow V8'er friend of mine is having a problem,
>he notices black smoke out the rear tail pipes while
>he's accelerating. I saie it's just carbon build up &
>he should run a few bottles of Techron through the
>car. But a fellow lister mentioned some GM top end
>cleaner? You use the vacum line from the intake
>manifold to such this stuff through to the combustion
>chamber. Does this sound familiar to anyone?
>  If anyones used this or now what I'm talking about
>could I get some info from you.
>Thanks
>Ron
>
>
>
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