TEST OR INSPECTION
Water pump engine oil is at proper level when oil is between full and add marks on
oil level dipstick. Failure to comply may cause damage to equipment.
Water pump engine must be stopped for at least five minutes before oil level can be
Open crew cab water pump engine access door. Check if water pump engine oil level is
above full mark (WP 0186).
If water pump engine oil level is above full mark, drain engine oil to achieve
proper level (WP 0243).
Replace water pump engine pressure regulator (WP 0220). Start water pump engine
(WP 0022). Check if water pump engine is producing blue exhaust smoke when water
temperature reaches 180ºF (82ºC) or greater.
If water pump engine is producing blue exhaust smoke with water
temperature over 180ºF (82ºC), go to Step 3.
If water pump engine is not producing blue exhaust smoke with water
temperature over 180ºF (82ºC), fault corrected.