Engine Noise Under Load

WARNING: This page is about a different variant/trim than selected.

Cause	Correction
Low oil pressure	Perform an oil pressure test. Refer to Oil Pressure Diagnosis and Testing . Repair or replace as required.
Loose torque converter bolts	Inspect the torque converter bolts and flywheel. Repair as required.
Loose or damaged flywheel, automatic transmission	Inspect the flywheel bolts and flywheel. Repair as required.
Excessive connecting rod bearing clearance	Inspect the following components and repair as required: The connecting rod bearings The connecting rods The crankshaft
Excessive crankshaft bearing clearance	Inspect the following components and repair as required: The crankshaft bearings The crankshaft journals The cylinder block crankshaft bearing bore
Excessive piston-to-cylinder bore clearance	Inspect the piston rings for low ring tension, broken or worn rings, inspect cylinder bore. Repair or replace all damaged components.
Excessive crankshaft thrust bearing clearance	Inspect the crankshaft end play and crankshaft thrust bearings. Repair or replace all damaged components.