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18
Troubleshooting Guide
TROUBLESHOOTING AND ELECTRICAL
SYSTEM: PEDAL-START GAS VEHICLE
GASOLINE POWERTRAIN
_
TROUBLESHOOTING GUIDE
SYMPTOM
POSSIBLE CAUSES
CORRECTIVE ACTION
Spark plug is partially fouled or in poor
condition
Clean or replace
Spark plug is damaged or loose
Replace or tighten
Incorrect spark plug gap
Adjust gap
Spark plug wire is damaged or loose
Replace or reconnect
Loose wire connection at ignition coil
Test Procedures 15 –
and 16
Intermittent ignition coil failure
Test Procedures 15 –
and 16
Low fuel level in fuel tank
Refill
Fuel line pinched or clogged
Clean or replace
Poor fuel quality or contaminated fuel
Replace
Water or dirt in the fuel system and/or throttle
body/fuel injector; dirty or clogged fuel filter
Section 23 — Fuel System: Gasoline Vehicles
Throttle body dirty or improperly adjusted
Clean or adjust. Section 23 — Fuel System:
Low cylinder compression
Section 22 — Engine (Subaru EX40)
Cylinder head bolts not tighten properly
Check and retighten. Section 22 — Engine
Intake or exhaust valve not sealing
Repair. Section 22 — Engine (Subaru EX40)
Incorrect valve clearance
Adjust. Section 22 — Engine (Subaru EX40)
Vacuum leak
Retighten hardware or replace gasket(s)
Engine does not start easily.
Starter/generator belt is slipping
Belt Tension Adjustment for EFI Engines on
Spark plug is fouled or in poor condition
Section 22 — Engine (Subaru EX40)
Spark plug wire is damaged or loose
Section 22 — Engine (Subaru EX40)
Intermittent ignition coil failure
Test Procedures 15 –
and 16
Water or dirt in the fuel system and/or throttle
body/fuel injector; dirty or clogged fuel filter
Section 23 — Fuel System: Gasoline Vehicles
Engine starts but does not run smoothly.
Fuel pump malfunction; fuel pressure to
throttle body too low
Section 23 — Fuel System: Gasoline Vehicles
TABLE CONTINUED ON NEXT PAGE
Page 18-4
2017 Carryall 500 and 700 Maintenance and Service Manual
Summary of Contents for Carryall 500
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