Initial Inspection and Diagnostic Overview

Exhaust System

Inspection and Verification

1. Verify the customer concern by operating the system.
2. Visually inspect for obvious signs of mechanical damage.

Visual Inspection Chart
Mechanical
Leaks
Metal fatigue
Pipes, mufflers and catalytic converters
Joints
Mountings
Clearance around components

3. If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4. If the concern is not visually evident, verify the symptom and refer to the Symptom Chart.

Symptom Chart

Condition(s):

Noisy or leaking exhaust
Possible Source(s):
Exhaust system.

Action(s) to take:
INSTALL new components as necessary.

Loss of power
Possible Source(s):
Restricted exhaust system.

Action(s) to take:
INSTALL new components as necessary.

Possible Source(s):
Fuel system.

Action(s) to take:
CHECK and REPAIR the fuel system as necessary.

Possible Source(s):
Ignition system.

Action(s) to take:
CHECK and REPAIR the ignition system as necessary.

Possible Source(s):
Electronic engine controls.

Action(s) to take:
CHECK and REPAIR the electronic engine control system as necessary.