🏷️ Basic Information Identification Make: Chevrolet Model: Trailblazer Year: 2009 Generation: Second Generation (GMT360) 📋 Manual Details Product Product Name: 2009 Chevrolet Trailblazer Service & Repair Manual Software PDF Download Manual Type: Service and Repair Manual Format: Digital Download (Software Access) Access Duration: 1 Year Compatibility: PC, Laptop, Smartphone, Tablet (via Web Browser) Licensing Licensing: Officially Licensed Information Source: OE Materials (Factory-Derived) Developer: RepairSurge ⚙️ Engine Specifications Engine 1 Engine Type: 4.2L Vortec Inline-6 Displacement: 4157 cc (254 cu in) Bore X Stroke: 3.90 x 3.62 in (99.0 x 92.0 mm) Compression Ratio: 9.1:1 Fuel System: Sequential Electronic Fuel Injection Power: 291 hp @ 6000 rpm Torque: 277 lb-ft @ 4800 rpm Engine 2 Engine Type: 5.3L Vortec V8 (LM4/LH6) Displacement: 5328 cc (325 cu in) Bore X Stroke: 3.78 x 3.62 in (96.0 x 92.0 mm) Compression Ratio: 9.5:1 Fuel System: Sequential Electronic Fuel Injection with Active Fuel Management (AFM) Power: 302 hp @ 5200 rpm Torque: 330 lb-ft @ 4000 rpm 🔧 Transmission Transmission 1 Type: 4-speed Automatic Gears: 4 Model: 4L60-E Transmission 2 Type: 4-speed Automatic (with optional 5.3L V8) Gears: 4 Model: 4L70-E 📐 Dimensions Exterior Length: 191.8 in (4872 mm) Width: 72.9 in (1852 mm) Height: 71.9 in (1826 mm) Wheelbase: 113.0 in (2870 mm) Weight Curb Weight: 4630 - 4900 lbs (2100 - 2223 kg) depending on configuration 🔧 Maintenance Engine Oil Oil Type 4.2L I6: SAE 5W-30 Synthetic Oil Capacity 4.2L I6: 7.0 US quarts (6.6 Liters) Oil Type 5.3L V8: SAE 5W-30 Synthetic Oil Capacity 5.3L V8: 7.0 US quarts (6.6 Liters) Cooling System Coolant Type: Dex-Cool® (Orange) Brake System Front Brakes: Vented Disc Rear Brakes: Disc Tires Standard Tire Size: P245/65R17 Optional Tire Size: P265/60R18 Battery Battery Spec: Group 78 (H6) Spark Plugs Spark Plug Type 4.2L I6: ACDelco 41-987 (Platinum) Spark Plug Type 5.3L V8: ACDelco 41-990 (Platinum) 📄 Chassis Suspension Front Type: Independent Torsion Bar Suspension Rear Type: Five-link Coil Spring Steering Type: Power-assisted Rack and Pinion