chevrolet truck Light Duty Truck 1994 Series, Repair Manual

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MFD. BY GENERAL MOTORS CORPORATION
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US. MYIM#
SEE OWNER’S MANUAL FOR ADDITIONAL INFORMATION
F0597
Figure 4— Vehicle Certification Label
All engines are stamped with an engine identifica­
tion number. Refer to figures 5, 6, 7, 8, and 9 to
determine the location of the engine identification
number.
TRANSM ISSION
IDENTIFICATION NUMBER
Refer to figures 10 through 14 for determining trans­
mission identification numbers and code meanings.
MODEL IDENTIFICATIO N
Models and body styles are shown in figures 15
through 19.
M ETRIC FASTENERS
Current model GM vehicles are primarily dimensioned
in the metric system. Many fasteners are metric and are
very close in dimension to well-known customary fas­
teners in the inch system . It is m ost im p o rta n t that
replacement fasteners be of the correct nominal diame­
ter, thread pitch, and strength.
Figure 5— 2.2L Engine I.D. Location
Original-equipment metric fasteners (except “ beauty”
bolts, such as exposed bumper bolts, and cross-recess
head screws) are identified by a number of markings
indicating the strength of the material in the fastener as
outlined later. Metric cross-recess screws are identified
by a Posidriv or Type 1A. Either a Phillips head or Type
1A cross-recess screwdriver can be used in Posidriv
recess screw heads, but Type 1A cross-recess screw­
drivers will perform better.