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Anyone have, or know of, any information on how to test the accumulator ?????? Almost sure the accumulator is bad, but want to make sure before replacing it. :)

Anyone ever rebuilt a powermaster????? Can't seem to get the whole unit here for less than $1000. Rebuild kit through the web about $50.

Anyone know of any links that tell how to repair the Bose amps????

Just wondering if you really need to change to the brass valve??? Two friends GN's still have iron ones and stop fine, no leaks, no problems. Anyone know what is the problem with the iron ones, and why only recall in Canada???

What is the correct horn emblem for a 1987 GN???? The one on my friends car has a "T" on it. I think it's for a "T" type and not a GN. I've seen pictures of other GN's with the Buick three shields emblem. The one he is looking for has the power6 logo on it. Anyone know which it the correct...

I just replaced the powermaster unit in a 1978 T type. A1 Cardone from Carquest. $270.00!!!!! Used to be about $850.00. I see on the board that Autozone is selling them for $143.00. Just to give you an idea of how expensive everything in Hawaii is. :(

Anyone know where I can get a factory powermaster trouble shooters booklet???? Anyone know what the pressure tester looks like??? Has anyone made a pressure tester???? Anyone know what the part numbers are for the master rebuild kit???

My first post. Anyone have any Factory manuals for a 1987 GN???? Also looking for the powermaster trouble shooting guide. I don't own a GN, but have friends who do. I do repairs for them and would like a factory manual. I rebuilt the motor in a 1987 GN about three years ago. Car was...