Oh, and the IMRC was rebuilt about a year ago, with presumably new gaskets and seals.
The old thread I found on topic was here:
http://www.contour.org/ubbthreads/showflat.php?Cat=&Board=trouble&Number=485586&Forum=trouble&Words=430%20174&Match=And&Searchpage=0&Limit=50&Old=allposts&Main=485586&Search=true#Post485586

If that helps.
Thanks

96 Ford Contour SE MTX, SVT exhaust, KKM intake, SP Motorsports slotted rotors, KVR pads, SP5000s -Stereo sucks