Chevrolet Silverado 1500
Report: Heating and AC Temperature and Air Delivery Mode Door Actuators May Fail
Chevrolet Silverado 1500 Problem
Average Mileage: 116,728 mi (46,000 mi - 206,000 mi)
One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail. This can result in incorrect air delivery or temperature. If this occurs, fault code(s) stored in the HVAC control module should be available to assist with diagnoses.
Visitor, 1999 Chevrolet Silverado 1500, 116,000 mi
a/c and heat all comes out of defrost vent and cannot switch from hot to cold without shouting off engine for a little bit.
Visitor, 2004 Chevrolet Silverado 1500, 103,000 mi
Heat on all the time, can not turn off
Visitor, 2004 Chevrolet Silverado 1500, 129,000 mi
heat on the left side failed. replaced actuator, but unfortunately heater core failed at the same time so i had dto replace that too
Visitor, 2004 Chevrolet Silverado 1500, 121,000 mi
Ditto. Occasionally the driver side air will go from AC to heat! Have to stop the car and restart it to get it to be AC again. Time to sell and buy a Ford.
Visitor, 2000 Chevrolet Silverado 1500, 206,000 mi
ac and heat doesnt work,fan worksin three of four speeds.
Visitor, 2004 Chevrolet Silverado 1500, 80,000 mi
ac blows hot air on drivers side, have to pull over and restart the engine this sucks big time
Visitor, 2003 Chevrolet Silverado 1500, 85,000 mi
The passenger side air blows only hot air, because the acctuator door is broken. I took the vents out and sealed them so that no air comes out of the passenger side vents. This is obviously not the best solution, but the acctuator is so hard to get to that it isn't worth it to me.
Visitor, 2000 Chevrolet Silverado 1500, 177,700 mi
only 3 of the 5 speeds on fan work
Visitor, 2000 Chevrolet Silverado 1500, 125,000 mi
I have a 2000 Chevy Silverado 1500 LS with a 5.3L V8. The air conditioning comes on correctly and is quite cold when the truck has not been running for a while. After the engine heats up, it blows cool air but not sufficently cold enough to keep the cabin comfortable. I had the Condenser Coil replaced (the one that is partially under the dashboard (cost of $1100). Again, the air is blowing cold (very cold when the truck has not been running for a while) and then, after the engine heats up, the air is not cold enough to maintain the cabin at a comfortable temperature. I have been to three different mechanics and I have spent a lot of money but still don''t have useful air conditioning.
It is not fixed!
Visitor, 2003 Chevrolet Silverado 1500, 202,000 mi
A/C blows cold on driver's side, but, the Passenger side fluctuates hot then cold and repeats that cycle every 2 seconds or so. I was told it was the Mode Actuator motor and a repair shop quoted me $925 to replace. If I could find a repair manual that covers this, I could fix it myself, however, Chilton's doesn't cover it and I can't find another resource.