3126B Generator Set Engine Caterpillar

Engine Oil Temperature Is Too High

Usage:

3126B BDZ

Probable Causes

Oil specifications
Engine oil temperature reading
Engine oil cooler bypass valve
High coolant temperature
Engine oil cooler

Recommended Actions

Oil Specifications

Inspect the engine oil level. If necessary, add the correct engine oil.

Engine Oil Temperature Reading

Compare the engine oil temperature reading from Caterpillar Electronic Technician (ET) to the temperature from a 6V-9130 Temperature Adapter. Verify that the readings are reasonably close.

Engine Oil Cooler Bypass Valve

Clean the engine oil cooler bypass valve and inspect the engine oil cooler bypass valve. Clean the bore for the valve. Ensure that the bypass valve is not stuck in the open position. Replace the bypass valve, if necessary.

High Coolant Temperature

Check for a high coolant temperature. Resolve any problems with active event codes before proceeding. If necessary, refer to Troubleshooting, "Coolant Temperature Is Too High".

Engine Oil Cooler

Check for a damaged engine oil cooler or for blockage in the engine oil cooler. Look for a restriction in the passages for engine oil in the engine oil cooler. Clean the engine oil cooler core or replace the engine oil cooler core.

Caterpillar Information System:

C-12 Generator Set Engine Engine Oil in Exhaust System

C-12 Generator Set Engine Engine Oil in Cooling System

C-12 Generator Set Engine Engine Misfires, Runs Rough or Is Unstable

3126B Generator Set Engine Engine Misfires, Runs Rough or Is Unstable

C-12 Generator Set Engine Engine Has Early Wear

C-12 Generator Set Engine Engine Cranks but Will Not Start

3126B Generator Set Engine Engine Cranks but Will Not Start

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C1.5 and C2.2 Generator Set Engines Engine Oil Line - Remove and Install

C-12 Generator Set Engine Coolant Temperature Is Too High

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C-12 Generator Set Engine Engine Stalls at Low RPM

C-12 Generator Set Engine Engine Vibration

C-12 Generator Set Engine Excessive Black Smoke

C-12 Generator Set Engine Excessive Fuel Consumption

C-12 Generator Set Engine Excessive Valve Lash

3126B Generator Set Engine Exhaust Temperature Is Too High

C-12 Generator Set Engine Intermittent Engine Shutdown

C-12 Generator Set Engine Intermittent Low Power or Power Cutout

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C-12 Generator Set Engine Low Power/Poor or No Response to Throttle

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