Mitsubishi Montero (1991+). Manual — part 129

fuel, metal particles, or water. Require repair or

replacement.

(3) - Inoperative includes intermittent operation or out of

OEM specification. Some components may be serviceable;

check for accepted cleaning procedure.

ENGINE COOLANT TEMPERATURE SENSORS

ENGINE COOLANT TEMPERATURE SENSOR INSPECTION

Condition Code Procedure

Attaching hardware

missing . . . . C . . .. Require replacement of

hardware.

Attaching hardware

threads damaged . . A ... Require repair or replacement

of hardware.

Attaching hardware

threads stripped

(threads missing) . .. A ... Require repair or replacement

of hardware.

Connector broken . . A .. Require repair or replacement.

Connector (Weatherpack

type) leaking . . .. A .. Require repair or replacement.

Connector melted . . A . . ... ( 1) Require repair or

replacement.

Connector missing . ... C . . . Require replacement.

Contaminated . . . A . . ... ( 2) Require repair or

replacement.

Inoperative . . . . B . . ... ( 3) Require repair or

replacement. Further

inspection required.

Leaking . . . . . A .. Require repair or replacement.

Missing . . . . . C . . . Require replacement.

Resistance out of

specification . . .. B .. Require repair or replacement.

Restricted, affecting

performance . . . A .. Require repair or replacement.

Terminal broken . . . A .. Require repair or replacement.

Terminal burned, affecting

performance . . . A . . ... ( 1) Require repair or

replacement.

Terminal burned, not

affecting performance .. 2 .. Suggest repair or replacement.

Terminal corroded,

affecting performance .. A .. Require repair or replacement.

Terminal corroded, not

affecting performance .. 2 .. Suggest repair or replacement.

Terminal loose, affecting

performance . . . B .. Require repair or replacement.

Terminal loose, not

affecting performance .. 1 .. Suggest repair or replacement.

Threads damaged . . . A .. Require repair or replacement.

Threads stripped (threads

missing) . . . ... A . . . Require replacement.

Wire lead conductors

exposed . . . . B .. Require repair or replacement.

Wire lead corroded . .. A .. Require repair or replacement.

Wire lead open . . .. A .. Require repair or replacement.

Wire lead shorted . ... A .. Require repair or replacement.

(1) - Determine cause and correct prior to repair or

replacement of part.

(2) - Determine source of contamination, such as engine

coolant, fuel, metal particles, or water. Require

repair or replacement.

(3) - Inoperative includes intermittent operation or out of

OEM specification. Some components may be serviceable;

check for accepted cleaning procedure.

ENGINE COOLING SYSTEMS

NOTE: Overheating, poor engine performance, and insufficient

cabin heat can be affected by, but are not limited to,

all of the components in the engine cooling system.

ENGINE COVERS (OIL PAN, VALVE COVER, TIMING COVER)

ENGINE COVER (OIL PAN, VALVE COVER, TIMING COVER) INSPECTION

Condition Code Procedure

Attaching hardware

incorrect . . . .. B . . . Require replacement.

Attaching hardware

loose . . . . .. A .. Require repair or replacement.

Attaching hardware

missing . . . . C . . . Require replacement.

Baffle loose . . . 2 .. Suggest repair or replacement.

Baffle missing . . .. C . . . Require replacement.

Bent, affecting

performance . . . A .. Require repair or replacement.

Bent, not affecting

performance . . . .. . ... No service suggested or

required.

Cracked (not leaking) ... 2 .. Suggest repair or replacement.

Leaking externally . .. A .. Require repair or replacement.

Leaking internally,

causing fluid

contamination . . .. A .. Require repair or replacement.

Missing . . . . . C . . . Require replacement.

Restricted passage . .. A .. Require repair or replacement.

Threads damaged . . . A .. Require repair or replacement.

ENGINE OIL

ENGINE OIL INSPECTION

Condition Code Procedure

Contaminated . . . A .. (1) Require replacement of oil

and filter.

Level high . . . .. B ... Determine source of incorrect

level and require repair.

Level low . . . ... B ... Determine source of incorrect

level and require repair.

Maintenance intervals ... 3 ... Suggest replacement to comply

with vehicle’s OEM recommended

service intervals.

(1) - Determine source of contamination, such as engine coolant,

fuel, metal particles, or water when changing oil. Require

repair or replacement.

ENGINE OIL CANISTERS

See ENGINE OIL FILTERS AND CANISTERS.

ENGINE OIL COOLERS (EXTERNAL)

ENGINE OIL COOLER (EXTERNAL) INSPECTION

Condition Code Procedure

Air flow restriction . A .. Require repair or replacement.

Attaching hardware

broken . . . . . A ... Require repair or replacement

of hardware.

Attaching hardware

missing . . . . C . . .. Require replacement of

hardware.

Attaching hardware not

functioning . . . A ... Require repair or replacement

of hardware.

Bypassed . . . . A .. Require repair or replacement.

Connection leaking . .. A .. Require repair or replacement.

Corroded . . . . 1 .. Suggest repair or replacement.

Fins damaged, affecting

performance . . . A .. Require repair or replacement.

Fins damaged, not

affecting performance .. 2 .. Suggest repair or replacement.

Fluid flow restrictions . A .. Require repair or replacement.

Internal restrictions,

affecting performance .. A .. Require repair or replacement.

Leaking . . . . . A .. Require repair or replacement.

Missing . . . . . A . . . Require replacement.

Threads damaged . . . A .. Require repair or replacement.

Threads stripped (threads

missing) . . . ... A . . . Require replacement.

ENGINE OIL DRAIN PLUGS AND GASKETS

ENGINE OIL DRAIN PLUG AND GASKET INSPECTION

Condition Code Procedure

Leaking . . . . . A .. Require repair or replacement.

Missing . . . . . C . . . Require replacement.

Threads damaged . . . A . . ... ( 1) Require repair or

replacement.

(1) - Some OEMs require replacement of drain plug gasket when

removing drain plug. Inspect threads in oil pan for damage.

ENGINE OIL FILTERS AND CANISTERS

ENGINE OIL FILTER AND CANISTER INSPECTION

Condition Code Procedure

Bulged . . . . .. A . . (1) Require replacement.

Further inspection required.

Canister attaching

hardware broken . . A ... Require repair or replacement

of hardware.

Canister attaching

hardware loose . . . A . . . . . Require repair.

Canister attaching

hardware missing . ... C . . . Require replacement.

Canister attaching

hardware not

functioning . . . A ... Require repair or replacement

of hardware.

Center tube collapsed ... A . . (2) Require replacement.

Further inspection required.

Contaminated . . . A . .. (3) Require replacement of

oil and filter.

Dented . . . . .. 2 . . (4) Suggest replacement.

Further inspection required.

Leaking . . . . . A .. Require repair or replacement.

Maintenance intervals ... 3 ... Suggest replacement to comply

with vehicle’s OEM recommended

service intervals.

(1) - Inspect pressure relief valve.

(2) - Inspect bypass.

(3) - Determine cause of contamination, such as engine coolant,

fuel, metal particles, or water when changing oil. Require

repair or replacement.

(4) - Determine cause, such as broken motor mount.

ENGINE OIL GASKETS

See ENGINE OIL DRAIN PLUGS AND GASKETS.

ENGINE OIL PRESSURE GAUGES (MECHANICAL)

ENGINE OIL PRESSURE GAUGE (MECHANICAL) INSPECTION

Condition Code Procedure

Indicates out of range .. B . . .. ( 1) Further inspection

required.

Inoperative . . . . A . . .. ( 2) Further inspection

required.

Leaking . . . . . A .. Require repair or replacement.

Reads inaccurately . .. 2 .. Suggest repair or replacement.

(1) - Gauge may indicate problem with contaminated oil, level,

pressure, or temperature, or problem with gauge.

(2) - Gauge may indicate problem with contaminated oil, level,

pressure, or temperature, or problem with gauge.

Inoperative includes intermittent operation, out of OEM

specification, or out of range. Further inspection

required to determine cause.

EVAPORATIVE EMISSION (EVAP) CANISTER FILTERS

EVAPORATIVE EMISSION (EVAP) CANISTER FILTER INSPECTION

Condition Code Procedure