Re. Strange cold start on 84 4000 quattro

[Tom Love]

Pretty sure I have a set of seals hangong around if he wants them

----- Original Message ----- 
From: "Ben Swann" <benswann at verizon.net>
To: <pre95 at live.com>
Cc: "'Quattro List'" <quattro at audifans.com>
Sent: Sunday, August 08, 2010 3:32 PM
Subject: Re. Strange cold start on 84 4000 quattro


>
> Nothing strange about it - you have a vacuum leak (or several vaccum 
> leaks).  From your
> description, you have a massive leak.
>
> If you don't find anything obvious, pull injectors and replace the O-ring 
> seals.  They
> are probably due for replacement anyway.
>
> Ben
>
> http://www.gtquattro.com/FAQ.html
>
>
> [Date: Sun, 8 Aug 2010 11:03:02 -0700
> From: Johnny B <pre95 at live.com>
> Subject: Strange cold start on 84 4000 quattro
> To: <quattro at audifans.com>
> Message-ID: <BLU142-W17CFCE6FC3AF5EDC1EDEA8C8930 at phx.gbl>
> Content-Type: text/plain; charset="iso-8859-1"
>
>
> Ran in to a very strange cold start issue this morning on my newly 
> acquired 84 4kq. The
> previous owner had warned me about it, but the symptoms he described didnt 
> make sense to
> me. And, after this morning, it really doesnt make sense!
>
> The car turns over but doesnt fire. After letting it sit for a few 
> seconds, it turns
> over and coughs, but misses. More turning over and then finally it fires 
> and coughs to
> life. Very choppy but after a few blips on the throttle it smooths out to 
> a nice idle
> just above 1k rpm. I notice here when I blipped the throttle a few times 
> it sounded like
> the motor was bogging, and the intake was quite  loud.
>
> I bring the RPM's up to 2k and its smooth, but at 2200 RPM it bogs itself 
> down and
> brings the RPM back to 2k. If I hold lightly on the throttle bringing the 
> RPM up it will
> cycle this (up to 2200, bog, back down to 2k, up to 2200, bog, down to 2k 
> etc etc). If
> you floor it, it just bogs harder. After letting it idle (which during all 
> of this it's
> idling very smooth) 30-45 seconds, all symptoms go away. Runs smooth, 
> rev's  up as it
> should, all problems go away. There was no smoke at start up..
> I'm definitely stumped.....
>
> Insight appreciated!
>
> Johnny]
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