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Content .. 1874 1875 1876 1877 ..
cause significant loss of engine performance Repair or replace, as required. Improper sealing between the intake manifold Replace the intake manifold, gaskets, Improperly installed or damaged manifold Repair or replace the MAP sensor, as Worn or loose rocker arms Replace the valve rocker arms, as required. Worn or bent pushrods Replace the pushrods. Inspect the top of the pistons for valve Stuck valves Repair or replace, as required. Excessively worn or mis-aligned timing chain Replace the timing chain and sprockets, as required. Worn camshaft lobes Replace the camshaft and valve lifters. Excessive oil pressure 1. Perform an oil pressure test. Refer to Oil Pressure Diagnosis and Testing. 2. Repair or replace the oil pump, as required. Faulty cylinder head gaskets and/or cracking 1. Inspect for spark plugs saturated by coolant. Refer to Spark Plug 2. Inspect the cylinder heads, engine
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
the engine to overheat. block, and/or head gaskets. Refer to 3. Repair or replace, as required. Worn piston rings 1. Inspect the spark plugs for oil deposits. Refer to Spark Plug Inspection . 2. Inspect the cylinders for a loss of compression. Refer to Engine 3. Perform cylinder leak down and compression testing to identify the 4. Repair or replace, as required. A damaged crankshaft reluctor wheel Systems with electronic Systems with electronic communication, Systems with mechanical Replace the sensor and/or crankshaft, as Improper operation of the active fuel Repair, as required. Refer to Cylinder
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
BASE ENGINE MISFIRE WITH ABNORMAL INTERNAL LOWER ENGINE NOISES management system Deactivation (Active Fuel Management) Improper operation of the camshaft position Repair, as required. Refer to Camshaft Cause Correction Abnormalities, such as severe cracking, Replace the drive belt. Refer to Drive Belt Worn, damaged, or mis-aligned accessory Inspect the components and repair or replace, Loose or improperly installed engine flex Repair or replace the flex plate and/or Worn piston rings 1. Inspect the spark plugs for oil deposits. Refer to Spark Plug Inspection . 2. Inspect the cylinders for a loss of compression. Refer to Engine 3. Perform cylinder leak down and compression testing to determine the 4. Repair or replace, as required. Worn crankshaft thrust bearings Replace the crankshaft and bearings, as
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
BASE ENGINE MISFIRE WITH ABNORMAL VALVE TRAIN NOISE Severely worn thrust surfaces on the required. Cause Correction Worn or loose rocker arms Replace the valve rocker arms, as required. Worn or bent pushrods Replace the pushrods. Inspect the top of the pistons for valve Stuck valves Repair or replace, as required. Excessively worn or mis-aligned timing chain Replace the timing chain and sprockets, as required. Worn camshaft lobes Replace the camshaft and valve lifters. Sticking lifters Replace, as required. Cut or damaged oil pump screen O-ring seal Repair, as required. Refer to Oil Pressure Improper operation of the active fuel Repair, as required. Refer to Cylinder Improper operation of the active fuel Repair, as required. Refer to Cylinder Improper operation of the camshaft position Repair, as required. Refer to Camshaft
2008 Chevrolet Silverado 1500 2008 ENGINE Engine Mechanical - 4.8L, 5.3L, 6.0L, 6.2L, or 7.0L - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra & Silverado
Content .. 1874 1875 1876 1877 ..
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