i just started driving my moms 98 jimmy sls and i tried the ac today but all i got was hot air. i figured that the coolant was low so i went to schucks and tried filling it. it says on the can to run your ac on max while filling so i did but it would continiuosly engage and disengage while i did this. when the pump quit the cans preasure guage said it was full but when it engaged again it said it was low. i didnt want to overfill it and run the risk of breaking something but dont know if it is infact the coolant or something else like electrical. what do you think?
May 18, 2009 at 7:32 PM