re: //M3 putt putt sound

[jkerouac <jkerouac@xxxxxxxxxxxxx>]

re: //M3 putt putt sound, and chirpy sound:

     If your putt putt sound is the same as my putt putt sound, then 
here's what causes it:

     There is a vapor recirc. valve located toward the front of the 
exhaust manifold.  There is an electrical conenctor with a squared off 
dome lid on the connector about 1 inch long.  The valve sits in front of 
the throttle, next to the mass air sensor.
     The putt is apparently pulses of vapor recirculation being fed to 
the idel control valve thorugh an ~1/2 hose that is on the bottom of the 
vapor recirc. valve.
     My '97 has been making that sound ever since it was new, is 
normal, and is not of concern.

     The chirp sound sounds like you may wish to replace your belts. 
If they have never been changed, then at 58k miles they ought to be.

     Btw another predicted wtf sound the E36 //M3 makes is a hissy 
growl for a few minutes when starting a cold engine.  That is the Air 
Pump feeding air into exhaust manifold.
Ymmv,

'jk
--
to be removed from bmw, see /bin/digest-subs.cgi
or email "unsubscribe bmw" to majordomo@domain.elided