my fans do not come on till around 230....is this the normal turn on temperature?

 

hate to tell you, but, yes - that's the temp... better off getting a lower temp switch...

 

one should come on at around 227 and the other around 238..

 

Order a Buick GN fan switch from GM i think it was like $16 or so. It comes on alot earlier....like around 180. Well worth it. Drove my car in bumper to bumper traffic in Boston quite a bit this summer and my baby never overheated.

 

Can u give a part # for that fan switch from GM for the Buick GN and what year/motor to ask for if no part # is availible....thanks

 

I don't remember the part #, just ask for the fan switch for an '87 GN (thats a 3.8L), and you should be fine.