[Vwdiesel] [VW-TDI] 2001 Golf smelly exhaust

[Tad]

Glad to hear that they made good (at least sorta) on the screw up.

If it's definitely coming from the exhaust pipe, I can't think of a cause
for this... unless the extended poor running resulted in unburnt fuel
accumulating in the exhaust and slowly evaporating off.  Another possibility
is the unburnt fuel may have accumulated in the catalyst and done
temporary(or permanent) damage to the cat.

Either way, I'd let it go for a while and see if things improve.

On Sat, May 1, 2010 at 6:30 AM, Rolf Pechukas <rbp at 4u2bu.org> wrote:

> hi gang
> some of you may remember my 01 Golf was re-assembled wrong after an
> alternator replacement by a local shop
> they left off the spring clamp on the hard plastic intake pipe
> as a result, the turbo blew the pipe off the hose and the engine was
> sucking in unfiltered air w/o the turbo boost
> the hard pipe ran into the serpentine pulley and was shredded up, and oil
> was spraying all over the engine compartment from the separation in the
> ducting
> I complained initially of VERY poor running, they encouraged me to 'drive
> it hard' to 'reset the computer'
> then I discovered the disconnected pipe, and they, to their credit,
> replaced the pipe for free and changed the oil
>
> however
>
> ever since this incident, the engine has been smelling 'bad'
> like unburnt fuel, disagreeable diesel smell
> before this, it was virtually odorless
> car is running fine, and economy is good - I am seeing 46-48mpg
> so it can't be running TOO bad
>
> but what might cause smelly exhaust?
> anything else liable to have been contaminated/damaged by driving @30 miles
> w/ intake duct disconnected?
> what got screwed up?
>
> thanks for any thoughts,
>
> Rolf in MA
>
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