________________________________________________________________________________________
| Home / Car Engines / Nissan Engines / Nissan CA18DE |
Nissan CA18DE Troubleshooting
| Engine starts hard or won't start |
Empty gas tank - Fill it up.
Wrong fuel grade - Use quality gasoline.
Air in fuel tank - Bleed fuel tank.
Damaged spark plug wiring connection - Check the spark plug wire connection, repair or replace.
Faulty spark plug - Replace spark plug.
Ignition system malfunction - Check ignition and replace faulty components.
Fuel filter is plugged - Change fuel filter.
Restricted fuel lines - Clean fuel system lines.
Clogged or defective fuel pump - Test fuel pump and replace if necessary.
Fuel injectors are clogged or faulty - Service or change fuel injectors.
Poor compression - Inspect and replace wear parts.
| Engine runs intermittently |
Ignition system failure - Check ignition and replace faulty components.
Dirty air filter element - Clean or change air filter.
Faulty spark plug - Replace spark plug.
Clogged or damaged fuel pump - Check fuel pump and change if required.
Valve clearance is wrong - Adjust valve clearance.
Ignition timing is improper - Adjust ignition timing correctly.
Low idle speed setting is not correct - Adjustment required.
| Engine stalls after starting |
Spark plug is faulty - Install new spark plug.
Fuel injectors are faulty or clogged - Service or replace fuel injectors.
Ignition coil is defective - Replace ignition coil as necessary.
Loose or broken valve springs - Change valve springs.
Valves are stuck - Service the valves.
| Engine overheats |
Low engine oil level - Check oil level and add oil as required.
Engine is under excessive load - Reduce engine load.
Fuel injectors are dirty - Need to clean fuel injectors.
Improper ignition timing - Adjust ignition timing correctly.
Improper valve setting - Valves needs to be set correctly.
Dirty radiator core or defective radiator cap - Install new cap or clean radiator.
Not enough coolant - Add coolant and check the components of cooling system.
Thermostat is defective - Thermostat need to be replaced.
Water pump failure - Replace water pump.
| Engine knocking sound or abnormal noise |
Low octane gasoline - Use correct fuel.
Engine is overloaded - Load reducing required.
Insufficient engine oil - Check oil level and add oil as required.
Wrong adjustment of low idle speed - Need to adjust idle speed.
Clogged or defective fuel pump - Check fuel pump and replace if necessary.
Crankshaft or main bearings failure - Install new parts as as required.
Valve clearance is incorrect - Adjust to proper valve clearance.
Damaged cylinder bore or piston rings - Change faulty components.
| Engine power is insufficient |
Clogged or damaged fuel injectors - Inspect fuel injectors and change as required.
Air filter element is clogged - Clean or change air filter.
Dirty or faulty fuel pump - Clean or install new fuel pump.
Ignition system is defective - Inspect ignition system and change failed components.
Cylinder head gasket is blown - Replace the head gasket.
Valves are stuck or burned - Replace or service valves.
Worn cylinder block parts - Replace defective components as required.
Plugged oil filter - Clean or change oil filter.
| High fuel consumption |
Dirty air filter element - Clean or replace air filter.
Fuel injectors are defective or dirty - Service or replace fuel injectors.
Spark plug is loose or defective - Tighten or change the spark plug.
Ignition timing is incorrect - Set the ignition timing properly.
Burned, worn, or stuck valves - Replace or service valves.
Worn sleeve, rings, or piston - Change faulty components.
Valve clearance is not correct - Adjustment procedure required.
Bad compression - Check and change damaged parts.
| Excessive oil consumption |
Worn seals or gaskets - Defective components must be replaced.
Damaged valve stems or valve guides - Replace the valves.
Stuck or worn piston rings - Piston rings replacement required.
Damaged piston or cylinder liner - Check piston and liner, replace as required.
| Engine backfires |
Dirty fuel injectors - Need to clean fuel injectors.
Clogged fuel lines - Clean fuel system lines.
Wrong ignition timing - Adjust ignition timing as required.
Wrong valve setting - Adjust valves correctly.
Air filter is blocked - Clean or replace air filter.
________________________________________________________________________________________
________________________________________________________________________________________
| Engines Technical Specifications |