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Captiva 1 (2006-2018)

Engine noise at startup

Engine noise on start-up lasting only a few seconds

STATE	operation, action
Incorrect oil viscosity	Drain the oil. Fill with oil of the correct viscosity.
Excessive clearance between piston and cylinder bore	Inspect piston and piston skirt, connecting rod and cylinder bore. Repair or replace any damaged components.

Noise at the top of the engine regardless of engine speed

STATE	operation, action
Low oil pressure	Insufficient or poor quality of oil supplied to the valve train. Perform an oil pressure test. Repair or replace any damaged components.
Incorrect lubrication of the valve follower pin	Inspect the valve lifter, valve bridge, valve lifter, oil pump and oil passages in the engine block. Repair or replace any damaged components.
Worn or damaged valve lifter pin	Inspect the valve bridge and tappet. Repair or replace any damaged components.
Valve sticking	Carbon deposits on the valve stem or valve seat can cause the valve to stick. Inspect valves and valve guides. Repair or replace any damaged components.
Worn or defective camshaft lobes	Inspect the camshaft lobes. If damaged, replace the camshaft and all valve lifters.
Damaged or misaligned timing gears.	Check the timing gears. Replace all damaged components.

Noise at the bottom of the engine regardless of engine speed

STATE	operation, action
Wear of accessory drive components (anomalies such as severe cracking, unevenness, or missing sections on the accessory drive belt and/or misalignment of system components).	Inspect accessory drive components. Repair or replace any damaged components.
Low oil pressure	Insufficient or poor quality oil supplied to the crankshaft and connecting rod bearings. Perform an oil pressure test. Repair or replace any damaged components.
Leaking and/or sticking fuel injection nozzle (a stuck fuel injection nozzle can cause noise like a damaged piston, connecting rod or connecting rod bearing).	Check cylinder balance with a scan tool to help identify which cylinder is causing the noise. If it is not possible to determine which of the cylinders is the source of the noise, diagnose the engine for mechanical damage. If the noise is found to be caused by the fuel injection nozzle, replace the fuel injection nozzle.
Loose and/or damaged crankshaft pulley	Inspect the crankshaft pulley and pulley bolt. Repair or replace any damaged components.
Loose torque converter bolts	Inspect torque converter bolts and flywheel. Repair or replace any damaged components.
Loose and/or damaged flywheel	Inspect flywheel and flywheel mounting bolts. Repair or replace any damaged components.
Excessive clearance between piston pin and bore	Inspect piston, piston pin and connecting rod. Repair or replace any damaged components.
Misalignment or bending of the connecting rod	Inspect the connecting rod and connecting rod bearings. Repair or replace any damaged components.
Excessive connecting rod bearing clearance	Inspect the connecting rod bearings, connecting rods, crankshaft and crankshaft journals. Repair or replace any damaged components.
Excessive main bearing clearance	Inspect main bearings and crankshaft journals. Repair or replace any damaged components.

Engine noise under load

Cause	elimination
Low oil pressure	Insufficient quantity or poor quality of oil supplied to the components. Perform an oil pressure test. Repair or replace any damaged components.
Loose torque converter bolts	Inspect torque converter bolts and flywheel. Repair or replace any damaged components.
Loose and/or damaged flywheel	Inspect flywheel and flywheel mounting bolts. Repair or replace any damaged components.
Excessive clearance between piston and cylinder bore	Inspect piston rings for low ring stress, broken or worn rings, and inspect cylinder bore. Repair or replace any damaged components.
Excessive crankshaft thrust bearing clearance	Inspect crankshaft end play and crankshaft thrust bearings. Repair or replace any damaged components.
Excessive main bearing clearance	Inspect main bearings and crankshaft journals. Repair or replace any damaged components.

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Previous articles

Captiva 1: Troubleshooting

Next articles

Initial ignition skip
Oil pressure check
Engine Diagnostic Methods
Engine cleanliness and maintenance
General engine diagnostics

Engine does not start — crankshaft does not turn
Coolant leak
Fuel has entered the engine oil
Turbocharger malfunctions
Drive belt whine
Drive belt squeal
Drive belt howl
Drive Belt Rumble
Vibration drive belt
Drive belt slip

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Captiva 1 (2006-2018)

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