Subaru Crosstrek Service Manual: Engine lubrication system trouble in general Inspection

Subaru Crosstrek Service Manual / Lubrication(h4do) / Engine lubrication system trouble in general Inspection

LUBRICATION(H4DO) > Engine Lubrication System Trouble in General

INSPECTION

Before performing diagnostics, make sure that the engine oil level is correct and no oil leakage exists.

Trouble	Possible cause	Corrective action
Warning light remains ON.	a. Oil pressure switch failure
	Cracked diaphragm or oil leakage within switch	Replace.
	Broken spring or seized contacts	Replace.
	b. Low oil pressure
	Clogging of oil filter	Replace.
	Malfunction of oil by-pass valve in oil filter	Replace.
	Clogged oil passage	Clean.
	Excessive tip clearance and side clearance of oil pump rotor	Replace.
	Clogged oil strainer or broken pipe	Clean or replace.
	c. No oil pressure
	Insufficient engine oil (degradation, etc.)	Replace.
	Broken pipe of oil strainer	Replace.
	Stuck oil pump rotor	Replace.
Warning light does not illuminate.	a. Malfunction of combination meter	Replace.
	b. Poor contact of switch contact points	Replace.
	c. Disconnection of wiring	Repair.
Warning light flickers momentarily.	a. Defective terminal contact	Repair.
	b. Defective wiring harness	Repair.
	c. Oil pressure switch failure
	Cracked diaphragm or oil leakage within switch	Replace.
	Broken spring or seized contacts	Replace.
	d. Low oil pressure
	Clogging of oil filter	Replace.
	Malfunction of oil by-pass valve in oil filter	Replace.
	Clogged oil passage	Clean.
	Excessive tip clearance and side clearance of oil pump rotor	Replace.
	Clogged oil strainer or broken pipe	Clean or replace.

Wiring diagram

LUBRICATION(H4DO) > Oil Pressure SystemWIRING DIAGRAMOil pressure warning system Oil Pressure Warning Light System > WIRING DIAGRAM"> ...

Oil pump Specification

LUBRICATION(H4DO) > Oil PumpSPECIFICATIONThe oil pump cannot be disassembled.Refer to “Chain Cover” for removal and installation procedures. Chain Cover > REMOVAL"> Chain C ...

Other materials:

Preparation tool
EyeSight (DIAGNOSTICS) > General DescriptionPREPARATION TOOL1. SPECIAL TOOLILLUSTRATIONTOOL NUMBERDESCRIPTIONREMARKS — SUBARU SELECT MONITOR 4Used for setting of each function and troubleshooting for electrical system.NOTE:For detailed operation procedures of Subaru Select Monitor 4, refer to & ...

Combination meter system Wiring diagram
WIRING SYSTEM > Combination Meter SystemWIRING DIAGRAM1. MODEL WITH NORMAL METER2. MODEL WITH COLOR TFT METER ...

Disposal
EXTERIOR BODY PANELS > Rear GateDISPOSAL1. REAR GATE DAMPER STAYCAUTION:Gas is colorless, odorless, and harmless. However, gas pressure may spray cutting powder or oil. Be sure to wear dust-resistant goggles.1. Cover with a vinyl sack as shown in the figure.(1)Stay ASSY - rear gate(2)Vinyl sackNO ...