6000 V6-173 2.8L (1988)
3.
Remove the circular "E" clip (Figure 1, Item # 1) from the throttle actuating link stud of the throttle lever (Item # 12).
4.
Using a T40 Torx Bit, rotate the throttle actuating lever screw (Item # 3) CLOCKWISE to remove it from the throttle body.
CAUTION:
KEEP FINGERS CLEAR OF THROTTLE ACTUATING LEVER. SPRINGS ARE UNDER TENSION AND WILL UNWIND
WHEN TENSION IS RELEASED. SPRINGS MAY BECOME DETACHED AND CAUSE INJURY. WEAR SAFETY
GLASSES.
IMPORTANT:
- LEFT HAND THREADS ON SCREW
-
IF BREAKAGE OF THE SCREW OCCURS, REPLACE THE THROTTLE BODY ASSEMBLY.
-
ALL PARTS REMOVED, PER THIS BULLETIN, SHOULD BE FORWARDED PER THE INSTRUCTIONS IN
THE WARRANTY PARTS RETURN PROGRAM. IF A PARTS RETURN PROGRAM IS NOT APPLICABLE,
THEN THE PARTS MAY BE SCRAPPED.
5.
Remove the throttle actuating lever and bushing assembly (Item # 4), thrust washers, spring pack retainers, and springs.
6.
Using compressed air, clean threads in throttle body casting and replacement screw.
7.
Install the throttle body service linkage kit (with rubber band still in place) to the throttle body assembly by hand tightening (left hand threads) the
throttle actuating lever screw in a COUNTERCLOCKWISE direction.
8.
Position the casting side pawl (Item # 5) in the semi-circular groove (Item # 10), and the lever side pawl (Item # 6) in the notch area of the throttle
actuating lever.
9.
Install the throttle actuating link (Item # 2) to the throttle lever stud using a new "E" clip.
10.
Cut and remove the rubber band (Item # 11).
IMPORTANT:
DO NOT REMOVE THE SPRING PACK RETAINER (ITEM # 9).
11.
Recheck the position of the pawls, check freedom of movement of linkage, then torque the throttle actuating lever screw to 10-12 ft.lbs. (14-16
N-m).
IMPORTANT:
DO NOT OVERTORQUE.
If after throttle actuating screw is properly torqued, it appears loose, entire throttle body is to be replaced.
12.
Remove spring pack retainer by pulling on tab.
13.
In accordance with instructions in Service Manual Section 6C, when performing service on accelerator controls, inspect the linkage and cables for
binding, interference with other components or physical damage (kinks, burns, etc.):
-
Grasp accelerator cable terminal, and move it in and out. Cable should move freely with no binding or sticking.
-
Pull cable out and release the terminal. Due to pedal weight, the cable should return to its fully retracted position without delay.
-
If required, replace cable per Service Manual Section 6C.
14.
Install the throttle valve (T.V.), cruise control, and accelerator cables.
15.
Adjust T.V. cable and cruise control cable, per the procedures in Service Manual Sections 7A and 9B, respectively.
16.
Check linkage operation prior to starting engine by actuating accelerator pedal several times throughout its full range:
With the aid of an underhood observer or diagnostic scanner such as a Tech 1, check to ensure that the throttle lever reaches full "wide-open"
upon fully depressing the pedal and that it returns to the idle position without delay upon releasing the pedal.
Throttle should operate smoothly with no binding or sticking. Pedal operating efforts required to reach full throttle should not be excessive.
If operation is unsatisfactory, repair or replace other linkage components (pedal, cables, etc.) as required, per the Service Manual procedures.
NOTICE:
DO NOT ATTEMPT TO USE LUBRICANT ON CABLES; INTERNAL DAMAGE MAY RESULT. UNSATISFACTORY
OPERATION IS TO BE CORRECTED BY CABLE REPLACEMENT ONLY.
THROTTLE BODY SERVICE LINKAGE KIT
MODEL YEAR
