Inline six-cylinder car engine Chevy Trailblazer 1

Inline Six Engine — Specifications
In-line 6-cylinder engine Ignition order 1-5-3-6-2-4 General information Working volume - 4.2 l Cylinder diameter and piston stroke - 92.964 x 102.108 mm...

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 the procedures, pressure wash the engine compartment and the...

Intake manifold — removal and installation
Removal 1. Disconnect the negative battery cable. 2. Remove the throttle body ( see chapter 4 ). 3. Remove the PCM electronic 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 the refrigerant from the system, you must...

Exhaust manifold — removal and installation
Removal Warning: when performing the procedure in the area where the exhaust manifold is located, precautions should be taken, taking into account that the...

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: This procedure requires a proprietary GM camshaft locking device#J-44221 or equivalent. Removal 1. Set the engine to a position where the first piston is...

Camshafts, rocker arms and clearance compensators — removal and installation
Note: This procedure requires the GM4J-44221 camshaft locking tool or equivalent Removal Note: Do not turn the crankshaft after removing the camshaft sprocket,...

Cylinder head — 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 valve cover ( see...

Valves — Maintenance
1. Considering the complexity of these works, as well as the need to use special equipment, it is recommended to entrust the maintenance of valves, seats and...

Front Crankshaft Oil Seal — Replacement
Caution: Do not damage the crankshaft threads. If using alternative tools as described below does not allow the pulley to be removed easily, STOP performing...

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 position for proper reassembly later. 3. Remove the...

Drive Disc — Removal and Installation
Removal 1. Raise the vehicle and place vertical supports underneath it. Remove the gearbox as described in chapter 7A . 2. Using a marker, mark the original...

Rear Crankshaft Oil Seal — Replacement
Removal 1. Remove the gearbox ( see chapter 7A ). 2. Remove the drive disc ( see subsection 13 ). 3. Inspect the oil seal, oil pan, cylinder block surface and...

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

Engine sump — removal and installation
Removal 1. Remove the oil dipstick ( see subsection 15 ). 2. Loosen the two upper A/C compressor bolts a few turns. 3. Loosen the front wheel nuts. Raise the...

Engine Mounts — Inspection and Replacement
1. As a rule, excessive wear or damage to the supports is extremely rare. To avoid damage or increased wear of transmission components, damaged or worn out...

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