Thank's a million for all your help with this, i unpluged the A/C pressure sensor and ran a jumper wire and sure enough the fan came on! So i'm gonna get either a conversion kit for 134a OR try to find the hose for the r12 [i have 6 can's of r12].They were given to me when i bought my 89 trans am [28,000mi. 3yr's ago] 5.0 tpi now it has 36,000! I've switched it to 134a. I herd the r12 is fetching a pretty penny so i'll probably save the r12 to sell and switch the grand prix to 134a.YOU'VE BEEN A BIG HELP, THANK'S AGAIN!
