1990 GMC LIGHT TRUCK Unit Repair Manual – PDF DOWNLOAD
DESCRIPTION:
1990 GMC LIGHT TRUCK Unit Repair Manual – PDF DOWNLOAD
FOREWORD This manual includes procedures involved in disassembly and assembly of components listed in the “Table of Contents.” 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 vehicles 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 reuse, 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:
1990 GMC LIGHT TRUCK Unit Repair Manual – PDF DOWNLOAD
SUBJECT PAGE
Service Parts Identification Label ………………………………………………………………………………………………………….OA- 1
Vehicle Identification Number …………………………………………………………………………………………………………………OA- 1
Certification Label ……………………………………………………………………………………………………………………………………OA- 1
Engine Identification Number ………………………………………………………………………………………………………………….OA- 2
“Transmission Identification Number ………………………………………………………………………………………………………OA- 3
Model Reference ……………………………………………………………………………………………………………………………………… OA- 3
Metric Fasteners ……………………………………………………………………………………………………………………………………… OA- 3
Fastener Strength Identification ……………………………………………………………………………………………………………. OA- 5
Six Lobed Socket Head Fasteners …………………………………………………………………………………………………………OA- 5
Prevailing Torque Fasteners …………………………………………………………………………………………………………………..OA- 5
Conversion Table ……………………………………………………………………………….. …………………………………………………..OA-13
Decimal and Metric Equivalents ……………………………………………………………………………………………………………. OA-14
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PLEASE NOTE:
- This is not a physical manual but a digital manual – meaning no physical copy will be couriered to you. The manual can be yours in the next 2 mins as once you make the payment, you will be directed to the download page IMMEDIATELY.
- This is the same manual used by the dealers inorder to diagnose your vehicle of its faults.
- Require some other service manual or have any queries: please WRITE to us at [email protected]
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