R 3500 P/U 2WD V8-454 7.4L VIN W 4-bbl (1988)
If the control speed is not within the above specifications, a minimum idle speed adjustment must be made using procedure shown on Page 4-20 of the
1991 Fuel and Emission Manual.
5.
Install latest PROM as shown on chart.
New
New
PROM
Broadcast
New
Scan
Transmission
Axle
Kit
Code
Tool I.D.
Auto (M-40)
ALL
16169157
AZFT
9171
Man (M-20)
3.73 (GT4)
16169158
AZFU
9181
3.42 (GU6)
"
"
"
Man (M-20)
4.10 (GT5)
16169159
AZFW
9191
4.56 (HC4)
"
"
"
6. The Dealer should tell the customer that the Cold Start Procedure has been revised from that shown in his Owners Manual. After initial fire and run,
the throttle should be cracked to about 1/4 to clean raw gas from the intake manifold.
Labor Operation Number:
Labor Time
Relocating Map Sensor
T7500
0.3 Hours
Replace PROM
T0500
0.6 Hour C/K, R/V
0.7 Hour G/P