Post by
boileralum00 »
https://forums.nicoclub.com/boileralum00-u146.html
Thu Feb 13, 2003 7:01 pm
It could just be a vacuum line or the check valve failing. If it is the booster (definitely possible w/ those miles), you guys should be able to change it out without too much difficulty. I'm not sure if there is a good writeup on twinturbo.net for changing the booster or not, but it would probably be well worth your time to search for "clutch booster" in the Technical forum on that site.