Excessive oil consumption is generally caused by leaky gaskets or loose line connections.
Always check the easiest and most obvious things first. This simple rule saves time and trouble.
Double check before disassembly. The source of most engine problems can be traced to more than one part
in the system. For example:
Excessive fuel consumption may not be caused by the fuel pump alone. Instead, the trouble could be a
clogged air cleaner reducing air inflow or a restricted exhaust passage, causing abnormally high back
(2) Engines very often are disassembled in search of a complaint and the real evidence of the problem is
destroyed. Check again to be sure an easier solution to the problem has not been overlooked.
Check all tags, service request forms, and vehicle logbook for repair history. This may help lead to the
source of problems.
Before attempting to correct a problem, diagnose the cause of the problem. Do not allow the same failure to
EXPLANATION OF COLUMNS.
Malfunction. Visual or operational indication that something is wrong with the 6KVRRTFL.
Test/Inspection. Procedure to isolate the problem to a component or system.
Corrective Action Procedure to correct problem.