[s-cars] Now Blown head gasket - was : stumble and smoke at idle

Tue Dec 15 06:03:30 PST 2009

What color is the "suddenly cloudy exhaust"
Wylie Bean
TheRingmeister at triad.rr.com
90 cq
91 90q20v
92 UrS4
08 Q7 3.6
Sent on the Sprint® Now Network from my BlackBerry®

-----Original Message-----
From: james McCarthy <jjssmccarthy at yahoo.com>
Date: Tue, 15 Dec 2009 05:51:15 
To: Peter Schulz<pcschulz at comcast.net>; <s-car-list-bounces at audifans.com>; <theringmeister at triad.rr.com>
Cc: <s-car-list at audifans.com>
Subject: Re: [s-cars] Now Blown head gasket - was : stumble and smoke at idle

Thanks I've looked at all the usual suspects.  No apparent leaks and none are original.  So with the Stumble stumble stumble on start up with suddenly cloudy exhaust and a sudden drop in coolant - also looking a bit darker than before and no other noticeable leaks... all signs seem to point to the head... yes?
-jamie

--- On Tue, 12/15/09, Wylie Bean <theringmeister at triad.rr.com> wrote:

> From: Wylie Bean <theringmeister at triad.rr.com>
> Subject: Re: [s-cars] Now Blown head gasket - was : stumble and smoke at idle
> To: "Peter Schulz" <pcschulz at comcast.net>, s-car-list-bounces at audifans.com, "james McCarthy" <jjssmccarthy at yahoo.com>
> Cc: s-car-list at audifans.com
> Date: Tuesday, December 15, 2009, 7:38 AM
> 2nd.. The "T" at the back of the head
> is an almost impossible place  to spot leaks. 
> Mine had one earlier this year.  Replaced it and
> problem seems to have been solved.
> Wylie Bean
> TheRingmeister at triad.rr.com
> 90 cq
> 91 90q20v
> 92 UrS4
> 08 Q7 3.6
> Sent on the Sprint® Now Network from my BlackBerry®
> 
> -----Original Message-----
> From: Peter Schulz <pcschulz at comcast.net>
> Date: Tue, 15 Dec 2009 08:33:15 
> To: james McCarthy<jjssmccarthy at yahoo.com>
> Cc: <s-car-list at audifans.com>
> Subject: Re: [s-cars] Now Blown head gasket - was : stumble
> and smoke at idle
> 
> James:
> 
> before you start tearing apart your motor, see if your
> exhaust smells like coolant.
> 
> I would start by looking at the usual suspects, the coolant
> reservoir, all hose connections, the thermostat T, the elbow
> on the back of the head, the heater valve, etc.
> 
> 
> -Peter
> 
> 
> On Dec 14, 2009, at 11:34 PM, james McCarthy wrote:
> 
> > Thanks - so haven't checked compression yet but...
> Stumble Stumble Stumble for 10-15 seconds on start up
> (clears in 10-15 seconds) with copious smoky exhaust that
> clears after 10-15 minutes of driving with a 1 inch drop in
> coolant in 48 hours (total of 15 miles driven) - seems like
> it must be the head gasket??? otherwise I have both fleas
> and ticks....  BUt will hunt for other loss
> potentials...
> > -jamie
> > 
> > --- On Mon, 12/14/09, Robert Myers <bob at chips-ur-s.com>
> wrote:
> > 
> >> From: Robert Myers <bob at chips-ur-s.com>
> >> Subject: Re: [s-cars] Now Blown head gasket - was
> : stumble and smoke  at idle
> >> To: "james McCarthy" <jjssmccarthy at yahoo.com>
> >> Date: Monday, December 14, 2009, 10:13 PM
> >> *This message was transferred with a
> >> trial version of CommuniGate(r) Pro*
> >> 
> >> Jamie,
> >> 
> >> There are many ways for coolant to be lost. 
> Only a
> >> few of them go with a blown head gasket.
> >> 
> >> Other than loss of coolant do you have any other
> symptoms
> >> suggesting a blown head gasket?  Is there
> evidence of
> >> coolant in the oil pan?  Have you checked
> compression
> >> for all cylinders?  Any of them down
> >> significantly?  Any evidence of engine gases
> backing up
> >> through the coolant reservoir?
> >> 
> >> Bob
> >> 
> >> At 10:52 PM 12/14/2009, you wrote:
> >>> *This message was transferred with a trial
> version of
> >> CommuniGate(r) Pro*
> >>> So while pulling the injectors this evening to
> check
> >> for leaks noticed the coolant had dropped 1 inch
> from
> >> yesterday... so I geuss head gasket it is. 
> Crap.
> >>> 
> >>> So what else to do while I'm there... just did
> the
> >> t-belt and h20 pump a year ago... but crazy not to
> just do
> >> them again I guess.  ARP studs, metal
> gasket...
> >> anything else?
> >>> thanks
> >>> -jamie
> >>> 
> >>> 
> >>> On Mon, Dec 14, 2009 at 11:54 AM, james
> McCarthy
> >> <jjssmccarthy at yahoo.com>wrote:
> >>> 
> >>>> Ok,
> >>>> New problem. 2 days ago my s6 (full OEM
> RS2 bits)
> >> developed a stumble on
> >>>> initial start up - but cleared within the
> first
> >> 10 seconds or so of driving.
> >>>>   This was associated with
> thick exhaust.
> >> Considered ignition
> >>>> (coil/pos/plugs) or leaking
> injector.  So
> >> replaced the plugs (new bosch
> >>>> F5DPOR) and the stumble seemed to be
> gone...
> >>>> However this am the stumble was back on
> initial
> >> start up only - not as
> >>>> severe and lasted just 2-3 seconds... but
> now I
> >> have "heavy" exhaust at idle
> >>>> even after driving for 10-15
> minutes.  No
> >> puffs with hard acceleration just
> >>>> at idle... car seems to be running
> perfectly
> >> otherwise pulls strong to
> >>>> redline with full boost and no
> stumbles...
> >>>> So where to start - I doubt coil/pos (5
> new oem
> >> 20K ago)  as I would expect
> >>>> the stumble to persist.  So I'm
> thinking PCV
> >> system as I can't figure why a
> >>>> leaking injector would result in continued
> thick
> >> idle. Also while turbo
> >>>> seals or valve seals are possible - I
> can't
> >> figure how they would cause the
> >>>> initial rough idle.
> >>>> So plan is to clean out the PVC system
> (also
> >> installing a catch can) and
> >>>> also see if I can determine if an injector
> is
> >> leaking.  Any thoughts or
> >>>> advice would be appreciated.
> >>>> tia
> >>>> -jamie
> >>> 
> >>> 
> >>> 
> >>>
>_______________________________________________
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> >>> http://www.audifans.com/kb/List_information

> >> 
> >> 
> > 
> > 
> > 
> >_______________________________________________
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> > http://www.audifans.com/kb/List_information

> 
> 
> 
> -Peter Schulz
> Chelmsford Ma, USA
> http://www.naaclub.org/

> 
> 1995.5 S6 Avant Emerald/Ecru
> 1995.5 S6 Avant Silver/Platinum
> 1991 90Q 20v Q Red
> 1991 90Q 20v Indigo
> 1991 CQ silver  (eS2 recipient) 
> 
> 
> 
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