Where is the AC fuse on a 2003 Yukon?
The fuse block access door is on the driver’s side edge of the instrument panel….Instrument Panel Fuse Block.
| Name | Usage |
|---|---|
| HTR A/C | Climate Control System |
| LOCK | Power Door Lock Relay (Lock Function) |
| HVAC 1 | Inside Rearview Mirror, Climate Control System |
Why does my GMC Yukon blow hot and cold air?
A small servo motor that turns hot and cold air valve in the heater box. I pulled the small flat motor off and noticed the shaft was jammed and would not turn when i moved the temperature selector knob from hot to cold. I reached in and turned the air valve with my finger and verified that it was not stuck.
Where is the cold air heater on a GMC Yukon?
It was cold out and the heat would not work in the front only. Turned out that the blend door motor was dead. It is under the glove box at the passengers feet. A small servo motor that turns hot and cold air valve in the heater box.
Why does my 2005 Tahoe blow hot air?
My 2005 Tahoe hava AC giving hot air problem. AC would suddenly blow hot air just on the driver’s side while the passenger side still blew cold. The only way to correct it was to turn the car off and back on and then it would immediately start blowing cold again. This happens intermitently.
Why does my AC suddenly start blowing hot air?
I have a 2004 Yukon with 160000 miles and about a year ago the AC would suddenly blow hot air just on the driver’s side while the passenger side still blew cold. After a few weeks it then stating blowing hot air on both sides. The only way to correct it was to turn the car off and back on and then it would immediately start blowing cold again.
What are the symptoms of a bad AC relay?
No cold air. Another symptom that the AC relay has potentially failed is that there will be no cold air at all from the AC. If the relay fails, the compressor will not operate and the AC system will be unable to produce any cold air at all.
How does compressor work in AC?
A standard air conditioner compressor is a piston-operated vapor pump driven by an electric motor. Refrigerant vapor entering the compressor at about 50 degrees Fahrenheit is pressurized by the piston, compacting the molecules of heat energy contained in the refrigerant and raising its temperature to approximately 150 degrees.
What does the AC compressor cut out relay?
A/C Cutout (WOT) Relay. Description. The logic module uses this relay to disengage the air conditioning compressor clutch when the throttle positionis at wide-open (WOT). This provides maximum engine output when it is required. The clutch is allowed to engage again when the throttle is not at WOT. It is also used to keep the A/C clutch disengaged for 10 seconds after engine startup, allowing the logic module to determine what the target AIS motorsetting should be for idle.
What does the relay do in a compressor?
The AC compressor relay is responsible for supplying power to the AC compressor and clutch. Without this relay, the AC compressor will not have power and the AC system will not function. The AC compressor relay is no different then other electrical relays – its electrical contacts will eventually wear or burn out, and the relay must be replaced .