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| Home / Car Engines / Nissan Engines / Nissan CA20E |
Nissan CA20E Troubleshooting
| Engine starts up hard or won't start |
No gasoline in tank - Fill fuel up.
Wrong fuel grade - Change gasoline.
Dirt and debris in fuel system - Remove debris and dirt.
Defective wiring connection of spark plug - Check the spark plug wire connection, repair or replace.
Damaged spark plug - Change spark plug as required.
Ignition system malfunction - Check ignition system and replace faulty parts.
Fuel filter is dirty - Change fuel filter.
Fuel lines clogging - Fuel lines need to be cleaned.
Fuel pump is faulty or clogged - Service or change fuel pump.
Dirty or defective fuel injectors - Test fuel injectors and change if necessary.
Bad engine compression - Inspect cylinder block and replace worn components.
| Rough engine running |
Ignition system failure - Check ignition and replace faulty components.
Plugged air filter - Clean or replace air filter.
Spark plug is damaged - Change spark plug as required.
Clogged or damaged fuel pump - Test fuel pump and change if necessary.
Valve clearance is incorrect - Adjust valve clearance according to specifications.
Incorrect ignition timing - Set the ignition timing properly.
Improperly adjusted low idle speed - Adjust idle speed.
| Engine stalls after starting |
Spark plug is defective - Change spark plug as required.
Dirty or damaged fuel injectors - Test fuel injectors and replace if necessary.
Defective ignition coil - Change ignition coil as required.
Valve springs are worn or loose - New valve springs need to be installed.
Valves sticking - Clean the valves.
| Engine keeps overheating |
Not enough engine oil - Need to add engine oil.
Engine is running overloaded - Reduce the load.
Clogged fuel injectors - Service or change fuel injectors.
Bad ignition timing - Ignition timing needs to be set properly.
Valve setting is improper - Set the valves properly.
Dirty radiator core or faulty radiator cap - Clean radiator or install new cap.
Insufficient coolant - Fill the cooling system and check components for leaks or other faults.
Thermostat failure - Replace thermostat.
Faulty water pump - Replace water pump.
| Abnormal engine knocking or noise |
Stale gasoline - Use correct fuel.
Engine overloaded - Reduce engine load.
Low engine oil level - Add oil to the engine crankcase.
Too low idle RPM - Adjust the low idle speed.
Fuel pump is defective or dirty - Check fuel pump and change if required.
Main bearings or crankshaft wear - Crankshaft or bearings need to be replaced.
Valve clearance is wrong - Need to adjust valve clearance.
Cylinder bore or piston rings are damaged - Change faulty components.
| Loss of engine power |
Fuel injectors are faulty or clogged - Service or change fuel injectors.
Air filter is dirty - Clean or replace air filter.
Fuel pump is faulty or clogged - Check fuel pump and change if required.
Defective ignition - Check ignition and replace faulty components.
Defective cylinder head gasket - Install new head gasket.
Stuck or burned valves - Clean or change valves.
Cylinder block components are worn - Change defective components.
Dirty oil filter element - Clean or replace oil filter.
| Excessive fuel consumption |
Air filter is dirty - Replace or service air filter.
Fuel injectors are dirty or defective - Test fuel injectors and change if necessary.
Loose or defective spark plug - Tighten or change the spark plug.
Wrong ignition timing - Ignition timing needs to be set properly.
Worn, stuck, or burned valves - Replace or service valves.
Piston, sleeve, or rings are damaged - Change defective parts.
Incorrect valve clearance - Adjust valve clearance.
Low engine compression - Inspect cylinder block and change defective components.
| Engine using too much oil |
Seals or gaskets are wearing excessively - Replace worn parts to avoid leaks.
Valve stems or guides are damaged - Install new valves.
Stuck or defective piston rings - Piston rings replacement required.
Scuffed cylinder liner or piston - Inspect liner and piston, replace as necessary.
| Engine backfires |
Fuel injectors are clogged - Service or change fuel injectors.
Fuel lines clogging - Clean fuel lines.
Improper ignition timing - Set the ignition timing properly.
Valve setting is improper - Valves needs to be set correctly.
Air filter element is clogged - Clean or change air filter.
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