Weak air flow
Posted: Tue Jan 04, 2011 6:46 pm
Hello, after doing some online search i finally found a site that has all the answers. But having a problem with my Pontiac Bonneville. About 5 yrs ago i had my ac programmer replaced, but this past summer i started having low air flow. To let it be known, all my setting works just weak air. I replaces the motor blower and resistor as told by a gm mechanic and still have the low flow. When its on high it sounds like a jet taking off but not as much air comes out the vents as it did back in the earlier yrs. I have no vacuum leaks, ir no holes in my duct becauses i checked all that. i cleaned the evap core still no help. someone told me to replace my evap core because it could of been leaking freon on the back side which causing air not to pass through the fins. Any advice?