94Z28LS1toLT1

When i turn the ac on do the fans change speed throughout the the driving, i keep hearing the same clickin sound when the ac clutch is engaged,when im sittin at a lite or stop sign

mab6680

the fans should not be making a clicking noise it sounds more like the ac compresser is clicking when it cycles

94Z28LS1toLT1

is the ac compresser supposed to to do that my air is blowing cold n no sign of leakes and i checked the line 2 lines n according to the haynes manual the top one is cool m bottom one is warm so system is properly charged

bobdec

On a properly charged system the a/c clutch will cycle on and off. There is a temp sensor in the evaporator coil that turns off the a/c clutch at 33* F and back on at 36* F this is to prevent it from freezing up. HOWEVER in a system with a LOW charge the a/c clutch will also cycle on/off as the coolant pressure drops below a predetermined level. In that case the a/c will not be blowing cool enough air which is very noticeable. If yours is cold it looks like the first case is what you are seeing.

mab6680

yes my compresser new and it clicks when it cycles and my air blows out at 55 deg it perfectly normal

94Z28LS1toLT1

Thank u guys cool