Workshop Repair and Service Manuals GMC SIERRA
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Engine

Battery Charging - part 2      The battery charger capacity—The higher the chargeramperage, the less time it will take to charge the battery.The state of charge of the 12-Vbattery—A completely discharged battery requires morethan twice as much charging time...
Battery Charging      12-V Battery The following procedure is for the 12-V batteryonly. For information about charging the high voltage drive motorbatteries, refer toJump Assist Description and Operation. Special Tools EL-42000Battery Tester...
Engine Heater Starting System      The engine coolant heater can provide easier starting and better fuel economy duringengine warm-up in cold weather conditions at or below ?18°C (0°F). The engine coolantheater should be plugged in at least four hours before...
Crankcase Ventilation System Inspection Diagnosis Emissions PCV      Crankcase Ventilation System Inspection/Diagnosis Symptom Correction External oil leak Inspect for any of the following conditions: Restricted or kinked positive crankcase ventilation (PCV)hose or engine vent...
Engine Component Description      Balance Shaft The cast iron balance shaft is mounted in the crankcase aboveand in-line with the camshaft. A camshaft gear drivesthe gear attached to the balance shaft. The front end of thebalance shaft is supported by a...
New Product Information      The purpose of New Product Information is to highlight orindicate important product changes from the previous modelyear. Changes may include one or more of the followingitems: A component comparison from the previous...
Use of Room Temperature Vulcanizing (RTV) and Anaerobic Sealant      Pipe Joint Compound Note:Three types of sealer are commonly used in engines. These areroom temperature vulcanizing-(RTV) sealer, anaerobicgasket eliminator sealer, and pipe joint compound. The correctsealer and amount must be...
Separating Parts      Important:Many internal engine components will develop specific wearpatterns on their friction surfaces. When disassembling the engine, internal components MUST beseparated, marked, or organized in a way to ensure...
Fuel System Cleaning Fuel System      Fungi and other microorganisms can survive and multiply in diesel fuel if water ispresent. The fungi can be present in any part of the fuel handling system. These fungigrow into long strings and will form into large globules....
Vehicle Messages Emissions      The Driver Information Center (DIC) will display warning messages if a problem isdetected. Pressing the select button or the set/reset button for vehicles with DICbuttons, or the trip odometer reset stem for vehicles without...
Use of Room Temperature Vulcanizing (RTV) and Anaerobic Sealant      Pipe Joint Compound Note:3-types of sealer are commonly used in engines.These are room temperature vulcanizing-(RTV) sealer,anaerobic gasket eliminator sealer, and pipe joint compound. Thecorrect sealer and amount must be used...
Cooling Fan Description and Operation (Diesel) Engine Cooling Radiator Fan      Cooling Fan Control The purpose of the electro-viscous (EV) fan clutch is tomaintain powertrain cooling requirements. The engine control module(ECM) monitors the following sensors to regulate the fanspeed: Engine coolant...
Radiator Cleaning Engine Cooling Radiator      Warning:NEVER spray water on a hot heat exchanger. The resultingsteam could cause personal injury. Caution:The heat exchanger fins are necessary for good heat transfer.Do not brush the fins. This may cause damage to the fins,...