[W126 Coupe] White smoke plus missfire update

[Ruud Schuijt]

Probably the rubber valve-seals. Not too expensive to replace.

>  
> Here is the update on my 560sel.  After raising the fuel pressure on the
> eha valve and running a few tanks of fresh gas the idle is smooth.  I do
> suspect a vacuum leak somewhere because the economy gauge is not all the
> way to the left at idle and when coasting at 40 the rpm move around
> slightly and surge car forward than slow down.
> My next problem is white smoke.  After a long drive on highway when I come
> to a stop it lets out a cloud of fog.  Or if I accelerate very hard and
> stop fast it will release a cloud of smoke when I slow down (using the
> brakes not engine).  As soon as i put some load on the motor the smoke goes
> away.  I figured that it was a tranny modulator and replaced it made it
> smoke less frequent but still does it once in a while.  I do not burn any
> antifreeze or oil (less than a quart of oil every 5k miles) Could I have
> bought a bad modulator? Or is this connected to my vacuum gremlin? BTW I'm
> using mobil one synthetic tranny fluid.
> thanks
> Pavel
> 
> 
> The MB Coupes Website!
> W126 SEC Mailing List
> Postings remain property of MB Coupes, L.L.C.
> 

-----------------------------------------------------------------
Ruud Schuijt
Chief

PALOOKAVILLE
Haarlemmerweg 317 f
1051 LG Amsterdam
T: +31(0) 20 85 12 506
F:+31(0) 20 85 12 507
M: +31(0)6 54 721 643
E: ruud at palookaville.nl
W: palookaville.nl