GM Service Manual Online
For 1990-2009 cars only

THROTTLE LINKAGE REVISIONS TO REDUCE PEDAL EFFORT

EFFECTIVE WITH SOP 1982, 8.2L POWERED MODELS WILL INCLUDE REVISED THROTTLE LINKAGE COMPONENTS TO REDUCE PEDAL EFFORT AND IMPROVE PEDAL HEIGHT. THE FOLLOWING DETAILS THE INSTALLATION REQUIREMENTS FOR LINKAGE KIT P/N 8884272 WHICH CONTAINS THESE REVISED COMPONENTS: DESCRIPTION CAB LEVER PART NUMBER 2081355 DESCRIPTION GOV. SPRING-INNER PART NUMBER 2086658 DESCRIPTION GOV. SPRING-OUTER PART NUMBER 2086640 DESCRIPTION MODULATOR SPRING PART NUMBER 717225 DESCRIPTION ROD ASM. PART NUMBER 2091924 DESCRIPTION BELLCRANK ASM. PART NUMBER 2091925 DESCRIPTION GOV. LEVER PART NUMBER 2091926 DESCRIPTION BELLCRANK BRKT. PART NUMBER 2091927 SERVICE PROCEDURE 1.DISCONNECT BATTERY. 2.REMOVE EXISTING THROTTLE COMPONENTS INCLUDING (SEE FIGURE NO. 1): A.ROD ASSEMBLY B.BELLCRANK C.THROTTLE ROD ASSEMBLY D.LEVER E.SPRINGS (REPLACEMENT REQUIRED ON TRUCKS PRIOR TO VIN GMC 1GDG7D1F1BV595513 AND CHEV. 1GBJ7D1F6BV139537 ONLY). SPRINGS REQUIRING REPLACEMENT ARE RED IN COLOR. F.BRACKET 3.DISCONNECT AUTOMATIC TRANSMISSION MODULATOR CABLE. 4.PROPER POSITIONING OF GOVERNOR FUEL LEVER IS ESSENTIAL IN OBTAINING CORRECT THROTTLE ACTION. A GOVERNOR COVER RETAINING BOLT (SEE FIGURE NO. 2) SHOULD BE SIGHTED DIRECTLY BELOW THE EXISTING LEVER ATTACHMENT HOLE. THE 69.0 MM (2.7 IN.) DIMENSION SHOULD BE MAINTAINED WHEN POSITIONING THE LEVER ON THE GOVERNOR SHAFT. AN 11 MM (.43 IN.) HEIGHT SHOULD BE MAINTAINED ABOVE THE GOVERNOR COVER (SEE FIGURE NO. 2). INSTALL THE GOVERNOR LEVER (P/N 2091926 AND SECURE WITH BOLT (P/N 186634) AND NUT (P/N 9422296). 5.REPLACE THE THROTTLE LEVER WITH P/N 2081355. 6.INSTALL BELLCRANK BRACKET, P/N 2091927. 7.INSTALL BELLCRANK, P/N 2091925. 8.RE-INSTALL THE REMOVED THROTTLE ROD ASSEMBLY AND ADJUST LINKAGE AS FOLLOWS: A.DEPRESS ACCELERATOR PEDAL TO FLOOR. B.ROTATE GOVERNOR LEVER TO WIDE OPEN THROTTLE. 1.MANUAL TRANSMISSION: ADJUST THROTTLE ROD ASSEMBLY SO THAT IT IS APPROXIMATELY 12.0 MM (.47 IN.) BEYOND DIRECT ENGAGEMENT WITH BELL-CRANK ATTACHMENT HOLE. 2.AUTOMATIC TRANSMISSION: ADJUST THROTTLE ROD ASSEMBLY SO THAT IT IS APPROXIMATELY 20.0 MM (.79 IN.) BEYOND DIRECT ENGAGEMENT WITH BELLCRANK ATTACHMENT HOLE. C.ASSEMBLE THROTTLE ROD IN BELL-CRANK. 9.RECONNECT TRANSMISSION MODULATOR CABLE. REPLACE EXISTING CABLE RETURN SPRING WITH P/N 717225 (WHITE IN COLOR). 10.INSTALL INNER AND OUTER THROTTLE RETURN SPRINGS P/N'S 2086640 (GREY IN COLOR) AND 2086658 (GREY IN COLOR). 11.CHECK TO ASSURE WIDE OPEN THROTTLE JUST AS ACCELERATOR PEDAL REACHES FLOOR. CHECK TRANSMISSION MODULATOR CABLE TRAVEL FOR FREE EXTENSION AND RETURN. 12.RECONNECT BATTERY.


Object Number: 81905  Size: FS


Object Number: 90390  Size: MF

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