Chevy S-10, Blazer; GMC Sonoma, Envoy, Jimmy; Olds Bravada, Isuzu Hombre 1994-2004

• Chevrolet S10 1994-2004
• GMC Sonoma 1994-2004
• Chevrolet Blazer 1995-2004
• GMC Jimmy 1995-2004
• Oldsmobile Bravada 1996-2001
• Isuzu Hombre 1996-2001
• GMC Envoy 1998-2001

1. Lubricate the balance shaft bearing journals with clean engine oil or engine assembly lube.
   
   
2. Slide the balance shaft into the engine. Support the balance shaft near the block and be careful not to scrape or nick the rear bearing.
   
   
3. Install the balance shaft retainer and two bolts and tighten them to the torque listed in Chapter 2B Specifications (see illustration 13.10).
   
   
4. Install the balance shaft driven gear and tighten the bolt to the torque listed in Chapter 2B Specifications.
   
   
5. Rotate the camshaft so that, with the balance shaft drive gear temporarily installed, the timing the timing mark is straight up at the 12 o'clock position. Remove the drive gear.
   
   
6. Rotate the balance shaft until the timing mark on the driven gear is facing straight down at the 6 o'clock position. Reinstall the balance shaft drive gear to the camshaft and make sure both balance shaft gears are aligned (see illustration).
   
   
7. Install the timing chain, sprockets and cover (See Part B of this Chapter).

A typical electrical circuit consists of an electrical component, any switches, relays, motors, fuses, fusible links or circuit breakers related to that component and the wiring and electrical connectors that link the component to both the battery and the chassis. To help you pinpoint an electrical circuit problem, wiring diagrams are included at the end of this book.

Before tracking any troublesome electrical circuit, first study the appropriate wiring diagrams to get a complete understanding of what makes up that individual circuit. Trouble spots, for instance, can often be narrowed down by noting if other components related to the circuit are operating properly. If several components or circuits fail at one time, chances are the problem is in a fuse or ground connection, because several circuits are often routed through the same fuse and ground connections.

• Tune-up and routine maintenance
• 2.2L four-cylinder engine
• 4.3L V6 engine
• General engine overhaul procedures
• Cooling, heating and air-conditioning systems
• Fuel and exhaust systems
• Engine electrical systems
• Emissions control systems
• Manual transmission; automatic transmission; transfer case
• Clutch and driveline
• Brakes
• Suspension and steering systems
• Body
• Chassis electrical system
• Wiring diagrams