Edelbrock 3842 Installation Instructions

•Please study these instructions carefully before installing your new throttle body. If you have any questions or problems,
please call our Technical Hotline at: 1-800-416-8628, 7:00 am - 5:00 pm, Monday through Friday, Pacific Standard
Time, or e-mail us at edelbrock@edelbrock.com
• These parts are street legal in all 50 states for use on 1989-95 3.8 liter Thunderbird Supercoupes.
STEP 1
Let engine cool, raise hood and disconnect the
negative battery terminal.
STEP 2
Remove the throttle body air inlet hose (two hose
clamps) and disconnect the water lines from
underside of the factory throttle body.
STEP 3 Disconnect throttle return spring from linkage and
unhook throttle cable by opening throttle and
slipping cable from cam groove.
STEP 4
Unplug the Throttle Position Sensor (TPS) and Idle
Bypass Valve (IBV).
STEP 5 Remove four nuts securing throttle body to intake.
STEP 6
Remove the throttle position sensor (TPS) and Idle
Bypass Valve (IBV) from the stock throttle body
and transfer over to the new Edelbrock throttle
body using the existing screws. Be sure to use
supplied plastic bushing on the TPS. For
optimum performance, match the intake opening to
the new throttle body size for maximum air flow.
STEP 7 Install new throttle body onto manifold using
supplied gaskets and torque to factory
specification (18 ft/lbs.).
Brochure # 63-0150
©2002 Edelbrock Corp.
Edelbrock Throttle Body #3842 (70mm)
for 1989-95 3.8 liter Thunderbird Supercoupe
.
INSTALLATION
STEP 8
STEP 9
STEP 10 Re-install flexible hose to throttle body and airbox.
STEP 11 Reinstall the negative battery terminal and refill the
STEP 12 Turn idle screw counter-clockwise until you can
STEP 13 Be sure the idle bleed screw (brass slot head) is
STEP 14 Start engine. If no idle can be achieved, turn brass
Throttle Body Kit Contents:
1- Throttle body assembly
1- Gasket; throttle body
1- Gasket; Idle Bypass Valve
1- Plastic bushing; Throttle Position Sensor

1- Installation Instructions

Edelbrock Corp.
2700 California Street
Torrance, California 90503
Installation Instructions
Some vehicles will require the use of a water
bypass tube ( not included in kit) to connect
coolant hoses (there are no water connections in
the Edelbrock throttle body).
Re-attach return spring, throttle cable and the TPS
and IBV connectors.
coolant tank to allow for lost coolant.
see between the screw and the throttle linkage
(set gap to 0.010" with feeler gauge, if possible),
then turn screw clockwise exactly one full turn.
turned clockwise until it bottoms in its bore. Do not
use too much force when bottoming screw.
idle bleed screw counter-clockwise in small
increments, restarting engine until desired idle rpm
is achieved.
Rev. 10/02