20 Most Recent 2005 GMC Yukon Questions & Answers

There is a door called the blend door, it controls air tmerature, it may be defective or the electric motor that moves it..

2005 GMC Yukon | Answered on May 25, 2020

Did you ever get a solution to this problem? Mine's doing the same thing and the GM Goodwrench On Demand Diagnostics who no codes or problems.

2005 GMC Yukon | Answered on Feb 13, 2019

Rear heat not working ? The blower motor isn't working ? No air coming from the rear vent's ? Is it just a yukon or XL or denali ? What size engine ? 4.8 , 5.3 or 6.0 l Manual or automatic climate control ? Does the blower motor work on any speed ? The front an rear heater system are seperate , have there own electrical circuits . Could have a couple of different systems ,could have a control processor or relay's an a resistor block . Do you know how to test automotive electrical circuit's using a wiring diagram and a DVOM - digital volt ohm meter ? Plus to get at the rear heater-A/C unit you would need to take the right rear trim panel off .
2003 Tahoe No Rear Heat Fix Suburban Yukon XL Repair

2005 GMC Yukon | Answered on Dec 08, 2017

Motor brushes may be worn out.

2005 GMC Yukon | Answered on Sep 04, 2017

The keyless entry system has the following main components:
• The transmitters
• The passenger door module (PDM)
The PDM communicates with the body control module (BCM) through the keyless entry serial data circuit. When you press a button on a transmitter, the transmitter sends a signal to the PDM. The PDM sends a request to the BCM and the BCM performs the appropriate function.

2005 GMC Yukon | Answered on Jul 20, 2017

Check the coolant temp. sensor (It controls warm up RPM, open loop ECU mode) And change the fuel filter every 20,000 miles to prevent water in filter from freezing ( fuel starvation).

2005 GMC Yukon | Answered on May 30, 2017

4wd?? Check CV shafts. Also look for whats rubbing. whre is the dirt rubbed off.

2005 GMC Yukon | Answered on Feb 26, 2016

Actually you can repair them I did mine it was switching to hot on its own I would have to shut the car off and back on to get cold back but I took the actuator off took it apart and the factory greased the thing so much there was a glob of grease that dropped down on the circuit board cleaned it off put it back together and it worked just fine going on the second year still no problem

2005 GMC Yukon | Answered on Aug 25, 2015

All your fluids up to snuff, perhaps its condensation in the muffler(s).
Where is the oil going you say it is a leak.

2005 GMC Yukon | Answered on Jun 01, 2015

I worked on a vehicle with same problem turned out to be main fuse in underhood fuse box or it could be fusible link. A spot in the positive battery cable that is an inline fuse. You will notice if it is blown by a break

2005 GMC Yukon | Answered on Apr 02, 2015

The security system CAN play a role in your vehicle not starting. There's a splice in resistor DIY fix for it. Google around for a write up.

2005 GMC Yukon | Answered on Apr 02, 2015

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