Hello.
I am facing a serious problem with my Hummer h3 3.7 (year 2008)... 2 times while driving the car got fire on the right side... after the check I have realized that fired comes from the right bottom side of passenger somewhere at the exhaust. While google i found that there is a problem with the HVAC motor actuator module which results the fire. I have checked the HVAC actuator and there was no sign of burning,. The engine temp. never exceed 100c, while driving it is 97c, intake 37.0C, Battery voltage: 14.0, Air Temp 27.0, o21x1,021x2 voltage 0.7. these are some of the obd results.
After obd checks there is a fault code P0325 , KNOCK sensor 1 (bank1 or single sensor).
o2 sensor can it lead to fire?

IN ADVANCE

Thanks

 

I had a recall notice on my 2009 H3, concerning a HVAC connector wire failure. This may/may not apply to your situation.

Per AutoBlog;

NHTSA CAMPAIGN ID: 15V421000
RECALL DATE: 2015-07-01

SUMMARY

General Motors LLC (GM) is recalling certain model year 2006-2010 Hummer H3 vehicles manufactured February 5, 2005, to May 24, 2010, and 2009-2010 Hummer H3T vehicles manufactured May 21, 2008, to May 24, 2010. In the affected vehicles, the connector module that controls the blower motor speed for the heating, ventilation and air conditioning system may overheat.

CONSEQUENCES

If the blower motor connector module overheats, it can increase the risk of a fire.

REMEDY

GM will notify owners, and dealers will replace part of the blower motor connector and harness, free of charge. The recall began February 26, 2016. Owners may contact Hummer customer service at 1-800-732-5493. GM's number for this recall is 15042.

COMPONENT AFFECTED

VISIBILITYEFROSTER/DEFOGGER SYSTEM:WINDSHIELD:BLOWER