V 2500 P/U 4WD V6-262 4.3L (1987)
Fuel Injector: Technical Service Bulletins
TBI Injector - Usage Precaution
CHEVROLET NUMBER: 87-T-44
SECTION:
6E - Engine Emission
DATE:
January, 1987
SUBJECT:
INJECTOR USAGE
MODELS:
1987 R,V,M, AND G MODELS EQUIPPED WITH THE 4.3L TBI ENGINE
Figure No. 1 - Model Number and Injector Location
The Throttle Body Injection (TBI) assembly installed on the 1987 4.3L light duty truck engine uses injectors with DIFFERENT flow rates in each
throttle bore for improved emission control. The TBI units involved are model numbers 17087090 and 17087162. If the injectors are removed for any
reason, care must be taken to make sure they are installed in their proper location. See Figure No. 1 for model number and injector location.
INJECTOR LOCATION INFORMATION
Throttle Lever
Side Bore
COLOR-CODED ORANGE AND
GREEN
^
New service package Part Number 17111928
^
Remanufactured equivalent Part Number 17111930
TPS Side Bore COLOR-CODED PINK AND BROWN
^
New service package Part Number 17111929
^
Remanufactured equivalent Part Number 17111931
