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When the air conditioner in your 2009 Hummer H3 starts blowing hot air, you likely have a freon leak. Recharging the freon in your AC system is an inexpensive and easy first step to restoring the cooling capacity of your A/C system. Most refrigerants include a leak sealer that will seal small leaks in addition to filling the R134a refrigerant. The A/C system in your H3 consists of a compressor that is belt-driven, an evaporator and freon. If there is a problem with your compressor or evaporator, adding freon will not restore cooling. How to add freon to your 2009 Hummer H3: hook up the can of refrigerant (likely r-134a) to the low pressure port. When your compressor kicks on, add freon to the correct pressure. In addition to cooling, freon lubricates the compressor when it runs.
Power steering fluid is easy to check and many people (mechanics included) often forget about - learn how here2009 Hummer H3 3.7L 5 Cyl.
Don't be caught in the fog with burnt out fog light bulbs2008 Hummer H3 3.7L 5 Cyl.
Your coolant should perform well under any condition - just like Aaron Rodgers!2009 Hummer H3 3.7L 5 Cyl.
See how to seal up minor power steering fluid leaks2009 Hummer H3 3.7L 5 Cyl.
Harsh downshifts? Slipping gears? You might be low on transmission fluid2009 Hummer H3 3.7L 5 Cyl.
Leaking coolant is usually a sign that your water pump needs to be replaced. This video shows you how to quickly plug it2009 Hummer H3 3.7L 5 Cyl.