This 2004 Chevrolet Silverado came in with the complaint that the air only blows through the defrost and will not blow out of any other location. There were codes B0263 and B3770 stored in the HVAC module. The codes refer to mode actuator faults. To access the actuator, the driver’s side heater floor vent extension … Continue reading “2004 Chevrolet Silverado, Changing The Mode Actuator”
This 2003 Chevrolet Silverado came in with the complaint that the blower did not work on any speed. The ABS and Brake lights were on as well. Testing begins at the HVAC fuses in the driver’s side fuse box that is located behind the dash end cap. The fuses need to be checked with the … Continue reading “2003 Chevrolet Silverado, Blower Does Not Work On Any Speed”
This 2004 Chevrolet Silverado came in with a faulty passenger side blend door actuator. In the last post I got you to this point. If you have not yet read that post please click here. Now that the dash cover is off and you can see the actuator, but you still cannot get to it. … Continue reading “2004 Chevrolet Silverado, Changing The Passenger Side Blend Door Actuator, B0424”
This 2004 Chevrolet Silverado came in with multiple hvac actuator faults. After diagnosing a faulty passenger side blend air door actuator with my Tech 2 scan tool it was time to remove the dash cover. Not a big deal but there are a lot of steps. Lift the lower edge of the dash end caps … Continue reading “2004 Chevrolet Silverado, Dash Cover Removal”
This 2003 Chevrolet Silverado came in with the air flow stuck on defrost. A simple diagnosis of a code B0263 found a faulty mode actuator. This repair applies to 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, and 2011 Chevrolet Avalanche, Silverado, Suburban and Tahoe. It also applies to Cadillac Escalade, GMC Sierra and Yukon … Continue reading “2003 Chevrolet Silverado, Changing the Mode Actuator, Code B0263”
This 2003 Chevrolet Silverado had come in about a month earlier, on a Friday afternoon and the customer wanted the system cold for a trip he was going on. The system had a low refrigerant charge. I added dye and oil, vacuumed it down and recharged the system. I advised the customer to come back … Continue reading “2003 Chevrolet Silverado, A/C Leaks”
The previous post on replacing the daytime running light sockets on a 2003 Chevrolet Silverado has detail about how to get to the socket but did not have much about how to splice in the new socket. The upper set of contacts in the picture below are burnt and are the reason for the socket … Continue reading “2003 Chevrolet Silverado, Replacing a DRL Socket”
This 2007 Chevrolet Silverado Classic came in with a leaking a/c system. I installed leak detection dye and had the customer drive the vehicle for a few days as I could not pinpoint a leak with an electronic leak detector. When the truck came back in, I looked around a little with my black (UV) … Continue reading “2007 Chevrolet Silverado, Changing a Leaking Condenser”
This 2003 Chevrolet Silverado came in with both daytime running lights inoperative. In order to access the DRL bulbs the headlight assembly has to be removed first. It is pretty simple. Locate the retaining pin and lift up the lever. With the lever lifted up the pin can be slid out towards the center of … Continue reading “2003 Chevrolet Silverado, Daytime Running Lights Inop”
This 2004 Chevrolet Silverado came in with the complaint that the blower motor will not turn off even with the key off. This is relatively common problem of the the full sized Chevrolet, GMC and Cadillac trucks with auto a/c controls. The first step is to lower the passenger side hush panel under the dash. … Continue reading “2004 Chevrolet Silverado, Blower Will Not Turn Off”