System Specifications

Cylinder Head Bolt Tightening Sequence:

Cylinder head bolts [1] 29 N.m (22 lb.ft.)
Engine coolant inlet pipe nuts 15 N.m (11 lb.ft.)
Guide tube bolt 9.5 N.m (84 lb.in.)
Generator mounting bracket bolts 26 N.m (19 lb.ft.)
Front engine hanger bolt 27 N.m (20 lb.ft.)
Engine mount to vehicle
"A" bolts 64 N.m (47 lb.ft.)
"B" bolt 25 N.m (18 lb.ft.)
Rubber insulator-to-engine mount bolt 25 N.m (18 lb.ft.)
Engine mount reinforcement bracket bolt and nut 25 N.m (18 lb.ft.)
A/C pipe bracket bolt (if equipped) 10 N.m (89 lb.in.)
Engine mount stud nuts 52 N.m (38 lb.ft.)
Cruise control actuator bolts 10 N.m (89 lb.in.)
Cruise control actuator bolts 10 N.m (89 lb.in.)
Intake manifold bolts and nuts [2] 19 N.m (14 lb. ft.)
Engine wire harness retainer nuts 10 N.m (89 lb. in.)
Engine wire ground strap bolt 10 N.m (89 lb. in.)
Engine wire cover bolts 10 N.m (89 lb. in.)
Fuel rail bolts 15 N.m (11 lb. ft.)
Fuel inlet pipe union bolt fuel rail 29 N.m (22 lb. ft.)
Intake chamber cover nuts and bolts 19 N.m (14 lb. ft.)
Fuel inlet hose clamp bolt 10 N.m (89 lb. in.)
Throttle body (TB) bolts and nuts 23 Nm (17 lb. ft.)
Accelerator bracket bolts 15 N.m (11 lb. ft.)
EGR valve-to-intake manifold bolts and nuts [3] 13 Nm (115 lb. in.)
EGR valve-to-cylinder head bolts [3] 59 N.m (43 lb. ft.)
Air pipe-to-intake manifold bolt and nut 9 N.m (80 lb. in.)
Intake manifold brace bolts (12 mm bolt head) 19 N.m (14 lb. ft.).
Intake manifold brace bolt (14 mm bolt head) 39 N.m (29 lb. ft.).
EGR solenoid vacuum valve mounting bolt [3] 13 N.m (115 lb. in.)
Left-side engine hanger nut 28 N.m (21 lb. ft.)
Thermostat housing nuts and bolt 20 N.m (14 lb. ft.)
Engine coolant outlet housing bolts 15 N.m (11 lb. ft.)
Exhaust manifold nuts [4] 34 N.m (25 lb. ft.)
Exhaust manifold brace bolts 39 N.m (29 lb. ft.)
Upper heat insulator bolts 9 N.m (80 lb. in.)
Front exhaust pipe-to-muffler pipe nuts 62 N.m (46 lb.ft.)
Front exhaust pipe-to-exhaust manifold nuts [5] 43 N.m (32 lb. ft.)
Front exhaust pipe-to-mounting bracket bolts 19 N.m (14 lb. ft.)
Throttle cable-to-bracket lock and adjusting nut 15 N.m (11 lb. ft.)
Accelerator cable-to-throttle lever lock and adjusting nut 15 N.m (11 lb. ft.)
Right-side engine splash shield bolts 10 N.m (89 lb. in.)
Negative (-) battery cable terminal 15 N.m (11 lb. ft.)

[1] Ten bolts to cylinder head in sequence shown in the illustration, placing the 90 mm (3.54-inches) bolts on the intake manifold side and 108 mm (4.25-inches) bolts on the exhaust manifold side.
Cylinder head bolts must be tightened in several passes and in the sequence shown in the illustration. If the bolts are not tightened in this fashion, damage may occur to the cylinder head.
- Once the cylinder head bolts are tightened to specifications. they must be tightened again using the following procedure:
- Mark the front of each cylinder head bolt with paint.
- Tighten each cylinder head bolt 90° using the sequence shown in the illustration.
- Tighten each cylinder head bolt an additional 90° in the sequence shown in the illustration.
- Check that the paint mark has been turned 180° from the front.

[2] Tighten each intake manifold bolt and nut in several passes to eliminate the possibility of warping the intake manifold.

[3] California specification vehicles.

[4] Tighten each exhaust manifold nut in several passes to eliminate the possibility of warping the exhaust manifold.

[5] Warm up three way catalytic converter (WU TWC) on California specification vehicles.