Pickup 4WD L4-2559cc 2.6L SOHC (4ZE1) (1988)
Exhaust Pipe: Technical Service Bulletins
Exhaust System - Service Precautions
BULLETIN NUMBER SB88-03-004
ISSUE DATE November 3, 1988
GROUP EMISSIONS
EXHAUST PIPE NUTS (4ZD1 AND 4ZE1 ENGINE)
VEHICLES AFFECTED
1987 - 1988 Isuzu models with 4ZD1 or 4ZE1 engine.
SERVICE INFORMATION
When replacing the front exhaust pipe or gasket, be sure to replace the exhaust pipe nuts. Refer to the parts listing below for part number information.
FIGURE 1
SERVICE PROCEDURE
Install new exhaust pipe nuts to front exhaust pipe (Figure 1). Tighten to the appropriate torque as specified below:
Model
Ft/lbs (kg/m)
1987-88 Trooper II
43.4 - 52.8 (6.0 - 7.3)
1988 Pickup
43.4 - 52.8 (6.0 - 7.3)
1987 P'UP
34.5 - 46.8 (4.9 - 6.6)
PARTS INFORMATION
Part No.
Description
Quantity
8-94156-626-0 Exhaust Pipe Nut
2 (1987 models)
8-94156-626-0 Exhaust Pipe Nut
3 (1988 models)