Hyundai Genesis DH Quiz
Engine Mechanical System

Troubleshooting

In this manual: Engine Mechanical System
General Information — 9Engine Mechanical System — 103Engine Electrical System — 54Emission Control System — 23Engine Control System/Fuel System — 127Automatic Transmission System (SBC) — 90All-Wheel Drive (AWD) System — 20Drive Shaft and Axle — 27Suspension System — 41Steering — 19Restraints — 56Brake System — 56Body (Interior and Exterior) — 211Body Electrical System — 279Heating, Ventilation, and Air Conditioning — 55
14steps
~84min
3/5difficulty
Done 0 of 14

Troubleshooting

Symptom Suspected Area Remedy
Engine misfire with abnormal internal low engine noise. Insufficient oil or excessive oil, worn bearings
Loose or damaged drive plate.		 Replace the crankshaft and bearings if necessary.
Repair or replace the drive plate if necessary.
Worn piston rings.
(Oil consumption may or may not cause engine misfire.)		 Inspect the cylinder for loss of compression.
Repair or replace if necessary.
Worn crankshaft thrust bearings Replace the crankshaft and bearings if necessary.
Incorrect valve clearance Check the valve clearance and adjust if necessary.
Engine misfire with abnormal valve train noise. Sticking valves.
(Carbon on valve stem)		 Repair or replace if necessary.
Excessively worn or displaced timing chain. Replace the timing chain and sprocket if necessary.
Worn camshaft lobes. Replace the camshaft and valve lifters.
Incorrect valve clearance Check the valve clearance and adjust if necessary.
Engine misfire with coolant consumption.
  • Faulty cylinder head gasket and/or crankshaft rotation or other damage to the cylinder head and engine block cooling system.
  • Coolant consumption may or may not cause engine overheating.
  • Inspect the cylinder head and cylinder block for damage to the coolant passages and/or a defective head gasket.
  • Repair or replace if necessary.
Engine misfire with excessive oil consumption. Wear of valves, valve guides and/or valve stem seals. Repair or replace if necessary.
Worn piston rings.
(Oil consumption may or may not cause engine misfire.)
  • Inspect the cylinder for loss of compression.
  • Repair or replace if necessary.
Engine noise on start-up that lasts only a few seconds. Incorrect oil viscosity. Replace engine oil correctly.
Worn crankshaft thrust bearing.
  • Inspect the thrust bearing and crankshaft.
  • Repair or replace if necessary.
Excessive engine noise regardless of engine speed. Low oil pressure. Repair or replace if necessary.
Broken valve spring. Replace the valve spring.
Worn or dirty valve lifters. Replace the valve lifters.
Stretched or broken timing chain and/or damaged sprocket teeth. Replace the timing chain and sprockets.
Worn timing chain tensioner, if equipped. Replace the timing chain tensioner if necessary.
Worn camshaft lobes.
  • Inspect the camshaft lobes.
  • Replace the camshaft and valve lifters if necessary.
Worn valve guides or valve stems. Inspect the valves and valve guides, then repair if necessary.
Sticking valves. Carbon on the valve stem or seat may cause the valve to remain open. Inspect the valves and valve guides, then repair if necessary.
Worn drive belt, tensioner, idler and bearing. Replace necessary and related parts, replace belt.
Low engine noise regardless of engine speed. Low oil pressure. Repair as necessary.
Loose or damaged drive plate. Repair or replace the drive plate.
Damage to oil pan, contact with oil pump strainer.
  • Inspect the oil pan.
  • Inspect the oil pump strainer.
  • Repair or replace if necessary.
Oil pump strainer is loose, damaged, or clogged.
  • Inspect the oil pump strainer.
  • Repair or replace if necessary.
Excessive piston-to-cylinder clearance.
  • Inspect the piston, piston pin, and cylinder bore.
  • Repair as necessary.
Excessive piston pin clearance.
  • Inspect the piston, piston pin, and connecting rod.
  • Repair or replace if necessary.
Excessive connecting rod bearing clearance Inspect the following components and repair if necessary.
  • Connecting rod bearings.
  • Connecting rods.
  • Crankshaft thrust washers.
Excessive crankshaft bearing clearance. Inspect the following components and repair if necessary.
  • Crankshaft bearings.
  • Crankshaft main journals.
  • Cylinder block.
Incorrect installation of piston, piston pin, and connecting rod
  • Make sure the piston pins and connecting rods are installed correctly.
  • Repair as necessary.
Engine noise under load. Low oil pressure Repair or replace if necessary.
Excessive connecting rod bearing clearance. Inspect the following components and repair if necessary:
  • Connecting rod bearings.
  • Connecting rods.
  • Crankshaft.
Excessive crankshaft bearing clearance. Inspect the following components and repair if necessary.
  • Crankshaft bearings.
  • Crankshaft main journals.
  • Cylinder block.
Engine does not crank, crankshaft does not rotate. Hydraulic lock cylinder.
  • Coolant/antifreeze in cylinder.
  • Oil in cylinder.
  • Fuel in cylinder.
  1. Remove the spark plugs and check for liquid.
  2. Inspect for a broken head gasket.
  3. Inspect the cylinder block or cylinder head for cracks.
  4. Inspect the fuel injector and/or fuel pressure regulator for sticking.
Timing chain breakage and/or timing chain and/or timing chain sprocket.
  1. Inspect the timing chain and sprockets.
  2. Repair as necessary.
Foreign material in cylinder.
  • Broken valve
  • Piston material
  • Foreign material
  1. Inspect the cylinder for damaged components and/or foreign material.
  2. Repair or replace if necessary.
Seized crankshaft or connecting rod bearings.
  1. Inspect the crankshaft and connecting rod bearings.
  2. Repair as necessary.
Bent or broken connecting rod.
  1. Inspect the connecting rods.
  2. Repair as necessary.
Broken crankshaft.
  1. Inspect the crankshaft.
  2. Repair as necessary.

Test yourself

A quick Hyundai Genesis DH quiz: every answer comes with an explanation and a link to the manual page.