Index Isuzu Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross - service repair manual 1999-2002 year
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6A–17 ENGINE MECHANICAL Fuel Consumption Excessive Condition Possible cause Correction Trouble in fuel system Mixture too rich or too lean due to Refer to “Abnormal Combustion” Fuel cut function does not work Refer to “Abnormal Combustion” Trouble in ignition system Misfiring or abnormal combustion Refer to “Hard Start” or “Abnormal Others Engine idle speed too high Reset Idle Air Control Valve Fuel system leakage Correct or replace Clutch slipping Correct Brake drag Correct Selection of transmission gear Caution operator of incorrect gear Excessive Exhaust Gas Refer to “Abnormal Combustion” Lubrication Problems Condition Possible cause Correction Oil pressure too low Wrong oil in use Replace with correct engine oil Relief valve sticking Replace Oil pump not operating properly Correct or replace Oil pump strainer clogged Clean or replace strainer Oil pump worn Replace Oil pressure gauge defective Correct or replace Crankshaft bearing or connecting Replace Oil contamination Wrong oil in use Replace with correct engine oil Oil filter clogged Replace oil filter Cylinder head gasket damage Replace gasket Burned gases leaking Replace piston and piston rings or Oil not reaching valve system Oil passage in cylinder head or Clean or correct Engine Oil Pressure Check 1. Check for dirt, gasoline or water in the engine oil. a. Check the viscosity of the oil. specified standard. c. Refer to the “Maintenance and Lubrication” section of this manual. 2. Check the engine oil level. The level should fall somewhere between the “ADD” 3. Remove the oil pressure unit. 4. Install an oil pressure gauge. operating temperature (About 80 ° C). 6. Measure the oil pressure. Oil pressure should be: 392–550 kPa (56.9–80.4 psi) at 3000 rpm. 7. Stop the engine. 10. Start the engine and check for leaks. |