Rattle and Bog

[mr.utility at highstream.net (David Utley)]

If you have a rattle, and it is indeed the catalytic monolith material that is 
rattling in the housing, then that is more than likely the cause of your 
stumble off idle...  It is causing too much back pressure because the material 
is lightly cocked to one side or the other...  Had this happen on a 77 TII van 
of all things, very frustrating...  I emptied the cat altogether (no 
inspections around here, boy), and it made a huge difference...  Check your 
local laws as far as removing the cat, etc...

HTH
-- 
Regards,
David Utley
-----------
Cable Volkswagen
405-470-3129
1-800-522-6793


Quoting Chad Eatock <ceatock@sympatico.ca>:

> Hey there,
> I have a rattle coming from the catalytic it seems and the car is running
> boggy at start up....I'm being told I need an o2 sensor and maybe a new cat?
> Also, I would like to be able to diagnose my idling and mixture issues and
> was wondering what type of tools I should get!  Thanks.
> Chadster '87 16v
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