3.8L V6 engine of car Chevrolet Lumina 1

Technical data of the 3.8 liter engine (V6)
General characteristics of the engine Cylinder numbering (from drive belt to gearbox): Front row (from the radiator side) — 1-3-5 Back row - 2-4-6 The firing...

General information about engine repair
Note: On vehicles equipped with the Delco Loc II audio system, ensure that the audio lockout device is disabled before performing any procedures that require...

Repair work performed without removing the engine
Before starting any repair work, clean the vehicle's engine compartment and engine body with a suitable cleaning agent. This will make the work easier and...

Determining the position of the top dead center of the 1st cylinder
1. Top dead center (TDC) is the highest point in the cylinder that the piston reaches when driven into reciprocating motion by the crankshaft. All pistons...

Removal and installation valve covers
Front cover (from the radiator side) 1. Disconnect the cable from the negative terminal of the battery. 2. Remove the spark plug wires and remove the wiring...

Removal, checking and installation valve rocker arms and rods
Removal 1. Remove the valve covers ( see section 4 ) from the cylinder head. 2. Unscrew the valve rocker arm struts one by one and disconnect the valve rocker...

Replacing springs, crackers and valve cuffs
Note: Broken valve springs and damaged valve stem seals can be replaced without removing the cylinder head. This operation typically requires two special tools...

Removal and installation the intake manifold
Removal 1. Relieve the pressure in the fuel supply system ( see chapter 4, section 2 ). 2. Disconnect the cable from the negative terminal of the battery. 3....

Removal, checking and installation valve lifters
1. A noisy valve lifter can be easily detected when the engine is idling. It is enough to put on a stethoscope (or by holding one end of a piece of hose to...

Removal and installation of exhaust manifolds
Caution: Allow the engine to cool completely before starting this operation. Note: Exhaust system components are often difficult to remove - they are burnt due...

Removal and installation the cylinder head
Removal 1. Disconnect the cable from the negative terminal of the battery. 2. Disconnect the wires and unscrew the spark plugs ( see chapter 1, section 32 )....

Removal and installation the anti-vibrator
Attention! The antivibrator is serviced when assembled. Do not attempt to separate the pulley from the balancer hub. 1. Disconnect the cable from the negative...

Replacing the front crankshaft oil seal
1. Remove the anti-vibrator ( see section 11) . If there is a groove on the surface of the anti-vibrator, then there are also cuffs that go into the groove,...

Removal and installation the timing chain cover
Note: This procedure requires a special tool. Before you start working, please read the entire section to the end. 1. Disconnect the cable from the negative...

Removal and installation the oil filter flange and pressure regulator valve
1. Remove the oil filter ( see chapter 1, section 12 ). 2. Remove the camshaft chain cover ( see section 13 ). 3. Remove the four bolts securing the oil filter...

Removal and installation the oil pump
Removal 1. Remove the oil filter ( see chapter 1, section 12 ). 2. Loosen the oil filter flange mounting bolts, remove the pressure regulator valve and spring...

Removal and installation the camshaft drive chain and sprockets
Removal 1. Remove the camshaft timing chain cover ( see section 13 ), then remove the washer from the nose of the crankshaft (see illustration). 16.1 The...

Removal and installation the oil pan
1. Disconnect the cable from the negative terminal of the battery. 2. Raise the vehicle and support it securely on stands. 3. Drain the engine oil and replace...

Removal and installation the oil pump inlet pipe and oil intake
1. Remove the oil pan ( see section 17 ). 2. Remove the oil pickup and the intake pipe (see illustration). 18.2. The oil pump inlet pipe is secured with two...

Checking and replacing engine mounts
Caution! When performing repairs, a special GM tool, Item No. J28467, is available to support the engine. If the vehicle is supported only by a jack, do not...

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