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| Home / Car Engines / Nissan Engines / Nissan CA18DET |
Nissan CA18DET Troubleshooting
| Engine starts hard or will not start |
Empty gas tank - Add fuel.
Improper fuel grade - Change gasoline.
Air in fuel tank - Bleed fuel tank.
Spark plug wire is loose or disconnected - Check the spark plug wire connection, repair or replace.
Defective spark plug - Replace spark plug.
Ignition failure - Check ignition system and replace faulty parts.
Clogged fuel filter - Change fuel filter.
Fuel lines are clogged - Clean fuel system lines.
Fuel pump is clogged or faulty - Clean or replace fuel pump.
Clogged or damaged fuel injectors - Test fuel injectors and replace if necessary.
Engine has low compression - Check cylinder block and replace defective parts.
| Rough engine running |
Defective ignition - Inspect ignition system and change failed components.
Air filter is blocked - Service or replace air filter.
Spark plug is defective - Change spark plug.
Fuel pump is clogged or faulty - Clean or install new fuel pump.
Improper valve clearance - Need to adjust valve clearance.
Improper ignition timing - Set the ignition timing correctly.
Incorrectly adjusted low idle speed - Correct idle settings.
| Engine starts but then shuts off |
Spark plug is defective - Replace spark plug.
Fuel injectors are dirty or defective - Clean or install new fuel injectors.
Ignition coil is not working - Change ignition coil as required.
Bad or broken valve springs - Change valve springs.
Valves sticking - Service the valves.
| Engine overheated |
Lack of engine oil - Fill up the oil to required level.
Engine is running overloaded - Reduce engine load.
Fuel injectors are clogged - Clean or change fuel injectors.
Ignition timing is wrong - Set the ignition timing properly.
Valve setting is wrong - Valves needs to be adjusted properly.
Damaged radiator cap or dirty radiator core - Clean radiator or install new cap.
Coolant level is low - Add coolant fluid and inspect the cooling system for leaks.
Damaged thermostat - Install new thermostat.
Water pump is defective - Install new water pump.
| Engine knocking or noise |
Low octane gasoline - Change fuel.
Engine overloaded - Reduce engine load.
Engine oil level is low - Check oil level and add oil as required.
Incorrectly adjusted low idle speed - Adjust idle speed.
Clogged or damaged fuel pump - Test fuel pump and change if necessary.
Crankshaft or main bearings failure - Need to install new components.
Valve clearance is improper - Need to adjust valve clearance.
Damaged cylinder bore or piston rings - Replace faulty components.
| Loss of engine power |
Dirty or damaged fuel injectors - Inspect fuel injectors and change as required.
Clogged air filter - Service or change air filter.
Dirty or damaged fuel pump - Inspect fuel pump and change as required.
Ignition system failure - Inspect ignition system and change failed components.
Defective cylinder head gasket - Cylinder-head gasket replacement required.
Stuck or burned valves - Service or replace valves.
Faulty cylinder block components - Replace defective components.
Oil filter element is plugged - Replace or service oil filter.
| Engine using too much gasoline |
Dirty air filter element - Clean or change air filter.
Dirty or damaged fuel injectors - Test fuel injectors and change if necessary.
Spark plug is loose or faulty - Tighten or replace spark plug.
Incorrect ignition timing - Adjust ignition timing correctly.
Stuck, burned, or worn valves - Clean or replace valves.
Rings, sleeve, or piston are damaged - Change faulty components.
Incorrect valve clearance - Adjust to proper valve clearance.
Low cylinder compression - Check cylinder block and replace worn parts.
| Engine oil consumption is too high |
Worn seals or gaskets - Replace defective parts.
Valve guides and stems are worn - Replace defective valves.
Piston rings are seized or worn - Change piston rings.
Piston or cylinder liner is scuffed - Check liner and piston, install new components as required.
| Engine backfires |
Dirty fuel injectors - Inspect fuel injectors and service as required.
Dirt in the fuel lines - Fuel lines must be clean.
Ignition timing is improper - Ignition timing needs to be set properly.
Valve setting is wrong - Valves needs to be adjusted properly.
Clogged air filter - Replace or service air filter.
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