Fuel Control - Updated Controlled Idle Speed Chart

90chevy13
GMC NUMBER: 90-6C-49(B)

GROUP: 6C Engine Fuel

DATE: July, 1990

CORPORATE
NUMBER: 036504
SUBJECT: MANUAL UPDATE-FUEL CONTROL SECTION PAGE 4-43 (UPDATED CHART CONTROLLED IDLE SPEED)

MODELS: ALL 1990 LIGHT DUTY TRUCKS W/CPC ENGINES

THIS BULLETIN CANCELS AND REPLACES GMC TRUCK SERVICE BULLETIN 90-6C-49 DATED MAY, 1990 TO CORRECT ELEVATION SPECIFICATIONS FOR 4.3L AND VS ENGINES ALL COPIES OF 9G-6C-49(A) SHOULD BE DISCARDED.



This bulletin updates the chart shown on Page 4-43 in the Fuel Control Section of the 1990 Fuel
and Emissions Service Manual X9036. This information is for all 1990 light-duty trucks with gas engines.