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Workhorse W Series User Manual

Workhorse W Series
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WORKHORSE CUSTOM CHASSIS
Service Manual
W SeriesWCC
SECTION
6.2
PAGE
14
Engine Mechanical
W Series Chassis
TOC
© 2006 WorkhorseCustom Chassis — All Rights Reserved
DIAGNOSTIC STARTING POINT - ENGINE MECHANICAL — (8.1L/ L18 ENGINE)
Begin the system diagnosis by reviewing the Disassembled Views, Engine Component Description , Lubrication
Description , New Product Information , and the Drive Belt System Description. Reviewing the description and
operation information will help you determine the correct symptom diagnostic procedure when a malfunction exists.
Reviewing the description and operation information will also help you determine if the condition described by the
customer is normal operation. Refer to Symptoms - Engine Mechanical in order to identify the correct procedure for
diagnosing the system and where the procedure is located.
Symptoms - Engine Mechanical
Strategy Based Diagnostics
Perform a Diagnostic System Check - Vehicle before using the symptom tables, if applicable.
Review the system operations in order to familiarize yourself with the system functions. Refer to Disassembled
Views , Engine Component Description , Drive Belt System Description , Lubrication Description and New Product
Information .
All diagnosis on a vehicle should follow a logical process. Strategy based diagnostics is a uniform approach
for repairing all systems. The diagnostic fl ow may always be used in order to resolve a system condition. The
diagnostic fl ow is the place to start when repairs are necessary.
Visual/Physical Inspection
Inspect for aftermarket devices which could affect the operation of the engine. Refer to Checking Aftermarket Accessories.
Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the
symptom.
Inspect for the correct oil level, proper oil viscosity, and correct fi lter application.
Verify the exact operating conditions under which the condition exists. Note factors such as engine RPM, ambient
temperature, engine temperature, amount of engine warm-up time, and other specifi cs.
Compare the engine sounds, if applicable, to a known good engine and ensure you are not trying to correct a normal
condition.

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Workhorse W Series Specifications

General IconGeneral
BrandWorkhorse
ModelW Series
CategoryEngine
LanguageEnglish