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PLEASE study these instructions carefully before beginning this installation. Most installations can be accomplished with common tools and
procedures. However, you should be familiar with and comfortable working on your vehicle. If you do not feel comfortable performing this
installation, it is recommended to have the installation completed by a qualified mechanic. If you have any questions, please call our Technical
Hotline at: 1-800-416-8628, 7:00 am - 5:00 pm, Pacific Standard Time, Monday through Friday or e-mail us at edelbrock@edelbrock.com..
NOTE: Proper installation is the responsibility of the installer. Improper installation may result in poor performance and engine or vehicle damage.
PLEASE complete and mail your warranty card. Be sure to write the model number of this product in the "Part #____" space. THANK YOU.
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DESCRIPTION: Designed for 1996-2003 Mustang GT, 1991-95 cars, and 1997-2003 truck models with modular 4.6/5.4L V-8 engines.
#3871 - 70mm Throttle Body for 1996-2003 4.6L Car Models
#3872 - 75mm Throttle Body for 1996-2003 4.6L Car Models
SPECIAL NOTICE: These parts are street legal in all 50 states for use on 1996 through 2004 Ford passenger vehicles with the 4.6/5.4L V8.
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They have received an Executive Order number (E.O. #) from the California Air Resources Board (C.A.R.B.) making them legal for street use
on pollution-controlled motor vehicles in all 50 states. To assist you with emissions equipment certification, we have included a silver fan
shroud decal to help testing personnel verify that this part is a legal replacement part on the vehicle for which it is cataloged. The adhesive-
backed decal should be affixed to your fan shroud next to the existing emission and engine specification decal. Do not cover your original
equipment specification decal with the Edelbrock fan shroud decal.
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KIT CONTENTS:
K 1 - Throttle Body Assembly
K 1 - Throttle Body Gasket
1.
Set parking brake on vehicle and disconnect the negative battery
terminal.
2.
Loosen the two hose clamps and remove inlet air tube connecting
the throttle body and airbox. Disconnect PCV, I.A.C. (Idle Air
Control) tube, and inlet air temperature sensor connector, if
applicable.
3.
Disconnect the return spring from the linkage and unhook the
throttle cable by opening the throttle by hand and slipping the
cable from the cam groove. Disconnect the cruise control cable,
if applicable.
4.
Disconnect the T.P.S. (throttle position sensor) connector.
5.
Remove the four bolts securing the throttle body to the intake and
remove the factory throttle body.
NOTE: For Optimum Performance, match the intake opening to
the new throttle body size. Although this is not mandatory, it will
maximize intake flow.
6.
Using the supplied screws and gasket install the new throttle
body on the intake manifold and secure.
7.
Re-attach the throttle cable, T.P.S. sensor connector, return spring
and cruise control cable, if applicable.
Catalog #3871, 3872, 3873, 3874
Rev. 10/05 - RS/mc
For 1991-2003 Ford Passenger Vehicles with 4.6/5.4L V8s
Catalog #3871 (70mm), #3872 (75mm), #3873 (70mm), & #3874 (75mm)
Edelbrock Corporation • 2700 California St. • Torrance, CA 90503
Tech-Line: 800-416-8628 • E-Mail: Edelbrock@Edelbrock.com
#3873 - 70mm Throttle Body for 1991-1995 4.6L Car Models
#3874 - 75mm Throttle Body for 1997-2003 4.6/5.4L Truck Models
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TOOLS REQUIRED:
K Flat & Phillips Blade Screwdrivers
K Metric Sockets and Extensions
K Metric Allen Wrenches
INSTALLATION PROCEDURE
8.
Re-install inlet tube between airbox and throttle body. Be sure to
reconnect the PCV tube, idle air control tube and inlet air
temperature sensor if applicable.
9.
Re-connect the negative battery cable.
10. Start the engine and run until it is at operating temperature.
NOTE: If you are unable to obtain a steady idle and proper idle
speed, continue with steps A and B below:
A.
Shut off engine, and be sure the idle valve adjustment
screw (gold colored, slotted head) is turned clockwise
until it bottoms in its bore. CAUTION: Do not use too
much force when bottoming the screw.
B.
Start the engine and disconnect I.A.C. connector. Adjust
gold idle screw in small increments until vehicle idles at
approximately 500 rpm. Re-connect I.A.C. connector
and vehicle will return to computer controlled idle
speed.
11. Shut off Engine and double check all fasteners and clamps to
ensure they are all secure.
70
75
mm &
mm THROTTLE BODIES
INSTALLATION INSTRUCTIONS
©2005 Edelbrock Corporation
Brochure #63-0023
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