1989 X88936 GMC Light Duty Light Duty Truck Service Manual – PFD DOWNLOAD

Description

1989 X88936 GMC Light Duty Light Duty Truck Service Manual – PFD DOWNLOAD

DESCRIPTION:

1989 X88936 GMC Light Duty Light Duty Truck Service Manual – PFD DOWNLOAD

FOREWORD

This Service Manual replaces Section 6C and 6E for 2.5L, 2.8L, 4.3L, 5.0L, 5.7L, and 7.4L gasoline engines with throttle body injection and supplements the following shop manuals:

• X-8932 10-30 Series R-V-G-P Light Duty Truck Service Manual

• X-8929 10 Series S-T Light Duty Truck Service Manual

• X-8930 10 Series M-Van Light Duty Truck Service Manual

• X-8931 10-30 Series C-K Light Duty Truck Service Manual

This manual includes the general description of a system, diagnosis and on-vehicle service procedures for the fuel control and emissions used on light duty truck with a throttle body injection fuel control system. Wiring diagrams for the above vehicles are also published in a separate “Truck Wiring Diagram” booklet. This manual should be kept in a handy place for ready reference. If properly used, it will meet the needs of technicians and vehicle owners.

CAUTION:

These vehicle’s contain some parts dimensioned in the metric system as well as in the customary system. Some fasteners are metric and are very close in dimension to familiar customary fasteners in the inch system. It is important to note that, during any vehicle maintenance procedures, replacement fasteners must have the same measurements and strength as those removed, whether metric or customary.

(Numbers on the heads of metric bolts and on surfaces of metric nuts indicate their strength. Customary bolts use radial lines for this purpose, while most customary nuts do not have strength markings.) Mismatched or incorrect fasteners can result in vehicle damage or malfunction, or possibly personal injury. Therefore, fasteners removed from the vehicle should be saved for re-use in the same location whenever possible. Where the fasteners are not satisfactory for re-use, care should be taken to select a replacement that matches the original. For information and assistance, see your authorized dealer.

CAUTION:

• To reduce the chance of personal injury and/or property damage, the following instructions must be carefully observed. Proper service and repair are important to the safety of the service technician and the safe, reliable operation of all motor vehicles. If part replacement is necessary, the part must be replaced with one of the same part number or with an equivalent part.
• Do not use a replacement part of lesser quality. The service procedures recommended and described in this service manual are effective methods of performing service and repair. Some of these procedures require the use of tools specially designed for the purpose. Accordingly, anyone who intends to use a replacement part, service procedure or tool, which is not recommended by the vehicle manufacturer, must first determine that neither his safety nor the safe operation of the vehicle will be jeopardized by the replacement part, service procedure or tool selected.
• It is important to note that this manual contains various Cautions and Notices that must be carefully observed in order to reduce the risk of personal injury during service or repair, or the possibility that improper service or repair may damage the vehicle or render it unsafe. It is also important to understand that these “Cautions” and “Notices” are not exhaustive, because it is impossible to warn of all the possible hazardous consequences that might result from failure to follow these instructions

TABLE OF CONTENTS:

1989 X88936 GMC Light Duty Light Duty Truck Service Manual – PFD DOWNLOAD

TABLE OF CONTENTS SECTION
GENERAL INFORMATION
DRIVEABILITY SYMPTOMS
COMPUTER COMMAND
CONTROL
FUEL CONTROL
EVAPORATIVE EMISSION
CONTROL
IGNITION SYSTEM/EST
ELECTRONIC SPARK CONTROL
AIR MANAGEMENT 8
I
?
EXHAUST GAS
RECIRCULATION
9
AUTOMATIC TRANSMISSION
CONVERTER CLUTCH OR
DOWN-SHIFT CONTROL AND
MANUAL TRANSMISSION
SHIFT LIGHT
10
POSITIVE CRANKCASE
VENTILATION 11
THERMOSTATIC AIR CLEANER w
SPECIAL TOOLS AND
SPECIFICATIONS
” I
ABBREVIATIONS 14
ALPHABETICAL INDEX
GENERAL 1-1 Positive Crankcase Ventilation (PCV) 1-4

Need help? Contact: [email protected]

IMAGES PREVIEW OF THE MANUAL:

PLEASE NOTE:

• This is the same manual used by the dealers to diagnose and troubleshoot your vehicle
• You will be directed to the download page as soon as the purchase is completed. The whole payment and downloading process will take anywhere between 2-5 minutes
• Need any other service / repair / parts manual, please feel free to contact [email protected] . We still have 50,000 manuals unlisted

S.M