New problems - A4 2.8 30V

[Rob Andrews]

To fix idle problems....
Take off the throttle body itake boot and spray intake cleaner in the
throttle body and clean it out (wipe)
There is a TSB on this....
Once that is done, do a throttle body adapation with Vag-COm or the other
ignition ofn for 3 minutes trick.

> -----Original Message-----
> From: quattro-admin at audifans.com [mailto:quattro-admin at audifans.com]On
> Behalf Of Stephen Kormilo
> Sent: Saturday, April 13, 2002 10:52 AM
> To: quattro at audifans.com
> Subject: Re: New problems - A4 2.8 30V
>
>
> At 10:40 AM 13/04/02 -0400, ricematthews wrote:
>
> >From: "ricematthews" <ricematthews at msn.com>
> >To: <quattro at audifans.com>
> >Subject: New problems - A4 2.8 30V
> >Date: Sat, 13 Apr 2002 09:40:53 -0400
> >
> >Time for an update......
> >The patient:  '98 A4 Avant Quattro 2.8 30v
> >
> >The first issue was the timing belt/water pump (also
> thermostat, rollers &
> >serpentine belt).  The dealer told me that
> >they recommend 60,000 miles for this service, even though
> the manual says
> >90,000.  The car has about 74,000.  When I took it in to the
> dealer to do
> >this work, I had a long list of potential warranty issues to
> have checked
> >out before my Audi Assured Warranty runs out in another
> 1,000 miles or so.
> >
> >Included in the list were leaks in several areas of the
> engine, in the rear
> >diff seals, and at the PS pump.  Also low idle (about
> 650-700 rpm - slight
> >fluctuation - as shown on the tach)
>
> Idle fluctuation on these engines seems 'normal', i.e. 'they
> all do that'
> :-(.  Occasionally, mine 'hiccups' lower, but eventually
> comes back.  The
> 2.8 in in my son's 2001 A4 also exhibits an erratic idle.
> The idle speed
> in both of our cars is usually around half-way between the 600 and 800
> marks on the tach, i.e. around 700 rpm.  Using VAG-COM not long ago, I
> logged idle speed at between 640 rpm and 680 rpm, mostly
> around the 680 rpm
> mark.  When I was test driving, I noticed that the new 3.0
> engine idles
> higher, ~800 rpm IIRC
>
> >and a "rattling" noise on cold start up
> >(possible cam adjusters?).
>
> Aha, another one!  I have posted about this before, welcome
> to the 'club',
> although I will be leaving it within the next month or so.
> Audi has twice
> replaced the cam chain tensioners, with redesigned ones, in
> my 2.8, but the
> noise still persists.  So far the reports that I have been
> keeping track of
> indicate that the noise only occurs in '98 and early '99 2.8s, mostly
> '98s.  My suspicion is that not only have the tensioners been
> redesigned,
> but also the heads, or there was an early production problem with the
> heads.  Audi agreed to replace the heads in my A4 with new
> ones during the
> Arbitration Hearing I forced them into.  I won't have the
> chance to verify
> that this solves the problem, since some $$$ incentives, combined with
> other factors, will see me in a new 2002 3.0 A4 some time next month.
>
> Do you know if the cam chain tensioners were replaced in your
> car when you
> had it in?  Is the engine still making the cold start noises
> after being in
> the shop?
>
> >After 4 days in the shop, I got it back last night.  The service
> >representative had told me that they think they fixed
> everything, but that
> >he thought there seemed to be a lot of smoke coming from the
> exhaust.  He
> >wasn't sure if this was anything to get alarmed about, so he
> suggested that
> >I take the car for the weekend and call him on Monday about
> it.  On my drive
> >home I noticed that there seemed to be a huge amount of
> smoke coming out -
> >with a weird smell too.  It doesn't smell like burning
> coolant or oil - but
> >it is definitely a new problem.  The other thing I noticed
> was that the oil
> >temp seems higher than usual.  Before it used to max out at
> about 200 deg. F
> >(as shown on the gauge) after a good bit of high speed
> driving.  Not it
> >shows 225 or so after only a relatively short trip.  Coolant
> temp maxes out
> >at the same point as before - directly halfway between C & H.
>
> I have no insight here, except that it is not unusual for there to be
> unusual odours after a service, especially if the cam chain
> tensioners were
> replaced.  Oil spills, cleaning fluid, etc.  However, if this
> is coming out
> of the exhaust, when it wasn't before?????  I can think of no logical
> reason for higher oil temps.
>
> >BTW - idle speed still seems low.  Idle also seems slightly
> rough (could be my
> >imagination).
>
> Nope, see my comments above.
>
> >Does anybody know what the cause of the smoke and/or
> increased oil temp
> >could be?
> >
> >TIA.
> >
> >-Mark Rice
>
>
>
> Stephen Kormilo                            Silver '98.5 Audi A4 2.8QM
> 		   Coming Soon :-)  Silver 2002 Audi A4 3.0QM
> Instructor, Electronics Technology
> Red River College
> Winnipeg, MB
> CANADA
>
> email: skormilo at rrc.mb.ca
> OR
>            stephen at kormilo.ca
>
>
>
>