17-NOV-08

So I was going to try to use the GMC Typhoon boost control solenoid as suggested in the TurboBricks MS Boost Control thread.  As soon as I tried to get one from gmpartsdirect.com though, I figured out that I’d have to find another solution.  The solenoid used in that thread is 1997152 and it’s $80+ at the dealer and $50+ through gmpartsdirect.com.  Ouch.  I then had one of those ‘Eureka’ moments – why not see if there’s another use for this solenoid, like say, emissions.  Sure enough, the same physical solenoid, in different configurations is used on lots of GM cars.  I took a stroll through the GM cars at a local salvage yard and found what I needed – part # 1997202.  It’s the EGR control solenoid on 91-93 V8 Cadillac’s, usually on the rear bank of cylinders on a mounting bracket that sticks it up off the head.  A pair of wire cutters and a 8mm nut driver and away you go.  Anyway, here’s what it looks like:

If you look carefuly, you’ll notice that the main difference is that the mounting tab is on the other side and instead of a loop for the screw to go through, there’s a stud.  I just popped it out and put a screw through the hole.  This solenoid has the same resistance and has the same plumbing and if you go the salvage yard route, hell cheap. 🙂