Inline six-cylinder car engine Chevy Trailblazer 1

Inline Six-Cylinder Engine Specifications
Inline 6-cylinder engine Fire order 1-5-3-6-2-4 Total information Working volume - 4.2 l Bore and stroke - 92.964 x 102.108 mm Compression ratio - 10:1...

General information about engines
This chapter describes repair procedures that can be performed without removing the 4.2L inline six-cylinder engine. The engine block, cast from aluminum...

Carrying out repairs without removing the engine from the engine compartment
Most engine repair procedures can be performed without removing the power unit. Before starting any procedures, pressure wash the engine compartment and the...

Intake manifold — removal and installation
Removal 1. Disconnect the negative battery cable. 2. Remove the throttle block ( see chapter 4 ). 3. Remove the electronic PCM unit ( see chapter 6 ). 4....

Valve cover — removal and installation
Removal Warning: The air conditioning system must be discharged before removing the valve cover. To safely remove refrigerant from the system, you must contact...

Exhaust manifold — removal and installation
Removal Warning: Use caution when performing this procedure in the exhaust manifold area, noting that the sheet metal insulation shield may have sharp edges....

Front casing — removal and installation
Warning: Allow the engine to cool completely before performing this procedure. Removal 1. Drain the coolant ( see chapter 1 ). 2. Remove the drive belt ( see...

Drive chain, sprockets and tensioner — replacement
Note: To perform this procedure, you must have the original camshaft locking tool GM#J-44221 or its equivalent. Removal 1. Set the engine to a position where...

Camshafts, rocker arms and clearance compensators — removal and installation
Note: To perform this procedure, you must have a proprietary camshaft locking tool GM4J-44221 or its equivalent Removal Note: Do not turn the crankshaft after...

Cylinder head — removal and installation
Warning: You must wait until the engine has completely cooled before performing this procedure. Removal 1. Drain the coolant ( see chapter 1 ). 2. Remove the...

Valves — maintenance
1. Taking into account the complexity of these works, as well as the need to use special equipment, it is recommended to entrust the maintenance of valves,...

Front crankshaft oil seal — replacement
Caution: Be careful not to damage the crankshaft threads. If the pulley does not come off easily when using alternative tools as described below, STOP the...

Oil pump and bypass valve — replacement
1. Remove the front engine cover ( see subsection 6 ). 2. Remove the oil pump cover and mark the gear location for proper assembly later. 3. Remove the gears....

Drive disc — removal and installation
Removal 1. Raise the car and place vertical supports under it. Remove the gearbox as described in Chapter 7A . 2. Using a marker, mark the original relative...

Rear crankshaft oil seal — replacement
Removal 1. Remove the gearbox ( see chapter 7A ). 2. Remove the drive disk ( see subsection 13 ). 3. Inspect the oil seal, pan, cylinder block surface, and oil...

Oil measuring tube — removal and installation
1. Disconnect the oxygen sensor connector and the coolant line bracket from the oil level tube bracket. 2. Unscrew the oil measuring tube stud from the...

Engine sump — removal and installation
Removal 1. Remove the oil level tube ( see subsection 15 ). 2. Loosen the top two air conditioning compressor bolts a few turns. 3. Loosen the front wheel...

Engine mounts — inspection and replacement
1. In general, excessive wear or damage to the bearings is extremely rare. To avoid damage or increased wear of transmission components, damaged or worn...