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3.4L (DOHC) Engine Mechanical Specifications
Application
Millimeters
Inches General Data Engine Type
--
60° V-6 Displacement
--
204 Cu In Liter (VIN)
--
3.4 (X) RPO
--
LQ1 Bore
92
3.622 Stroke
84
3.307 Deck Height
224
8.818 Compression Ratio
--
9.50:1 Firing Order
--
1-2-3-4-5-6 Oil Pressure @ Operating Temperature
103 kPa @ 1100 RPM
15 psi min @ 1100 RPM Cylinder Bore Diameter
92.020-92.038
3.6228-3.6235 Out Of Round Maximum
0.010
0.0004 Taper -- Thrust Side Maximum
0.013
0.00051 Center Distance
111.76
4.4 Piston Diameter-gauged at skirt 10.44 mm
(0.413 in) below centerline of piston pin bore
91.985-92.000
3.6215-3.6220 Clearance
0.020-0.052
0.0008-0.0020 Pin Bore
23.003-23.010
0.9056-0.9059 Piston Ring Compression Groove Clearance 1st and 2nd
0.033-0.079
0.0013-0.0031 Gap (at gauge diameter) 1st
0.20-0.45
0.008-0.018 Gap (at gauge diameter) 2nd
0.56-0.81
0.022-0.032 Oil Groove Clearance
0.028-0.206
0.0011-0.0081 Gap (segment at gauge diameter)
0.25-0.76
0.0098-0.0299 Tension 1st
27.6 N
6.2 lbs Tension 2nd
19.8 N
4.5 lbs Tension Oil
31.2 N
7.0 lbs Piston Pin Diameter
22.9915-22.9964
0.9052-0.9054 Clearance
0.0066-0.0185
0.00026-0.00073 Fit In Rod
0.0165-0.0464
0.0006-0.0018 Crankshaft Main Journal Diameter-All
67.239-67.257
2.6472-2.6479 Taper-Maximum
0.005
0.0002 Out Of Round-Maximum
0.005
0.0002 Cylinder Block Main Bearing Bore Diameter
72.155-72.168
2.8407-2.8412 Crankshaft Main Bearing Inner Diameter
67.289-67.316
2.6492-2.6502 Main Bearing Clearance
0.019-0.064
0.0008-0.0025 Main Thrust Bearing Clearance
0.032-0.077
0.0013-0.0030 Crankshaft End Play
0.06-0.21
0.002-0.008 Crankpin Diameter
50.768-50.784
1.9987-1.9994 Taper-Maximum
0.005
0.0002 Out Of Round-Maximum
0.005
0.0002 Rod Bearing Bore Diameter
53.962-53.984
2.124-2.125 Rod Inner Bearing Diameter
50.812-50.850
2.000-2.002 Rod Bearing Clearance
0.018-0.062
0.0007-0.0024 Rod Side Clearance
0.18-0.44
0.0071-0.0173 Camshaft Lobe Lift (Intake)
9.398 @ 108° Crank ATDC
0.370 @ 108° Crank ATDC Lobe Lift (Exhaust)
9.389 @ 115° Crank BTDC
0.370 @ 115° Crank BTDC Timing Reference Set Position with Camshaft
Timing Flats in Clamped Position-Right Bank
--
TDC-1Piston Exhaust Stroke +/- 2° of Crankshaft Timing Reference Set Position with Camshaft
Timing Flats in Clamped Position-Left Bank
--
TDC-4 Piston Exhaust Stroke +/- 2° of Crankshaft Journal Diameter
54.973-55.001
2.1643-2.1654 Bore Inside Diameter
55.050-55.075
2.1673-2.1683 Journal Clearance
0.049-0.102
0.0019-0.0040 Valve System Lifter
--
Hydraulic Face Angle
--
45° Seat Angle
--
46° Seat Runout-Maximum
0.075
0.0030 Seat Width Intake
1.25-1.50
0.0492-0.0591 Exhaust
1.60-1.90
0.063-0.0748 Valve Margin-Minimum
0.75
0.029 Stem Clearance Intake
0.028-0.066
0.0011-0.0026 Stem Clearance Exhaust
0.046-0.084
0.0018-0.0033 Valve Spring Free Length
42.04
1.6551 Load (Closed)-All
289 N @ 35.56
65 lb @ 1.400 Load (Open)-All
711 N @ 26.16
160 lb @ 1.030 Approximate Number of Active Coils
--
4 Oil Pump Valve to Bore Clearance
0.038-0.089
0.0015-0.0035 Gear Lash
0.094-0.195
0.0037-0.0077 Gear Pocket Depth
30.53-30.61
1.202-1.205 Diameter
38.202-38.252
1.504-1.506 Gear Length
30.45-30.48
1.199-1.20 Diameter
38.05-38.10
1.498-1.50 Side Clearance
0.08-0.10
0.003-0.004 End Clearance
0.05-0.152
0.002-0.006 3.4L (DOHC) Fastener Tightening Specifications
Application
N·m
Lb Ft
Lb In Accelerator Control Cable Bracket Bolt
10
--
89 Accelerator Control Cable Bracket Nut
10
--
89 Camshaft Carrier Cover Bolt
11
--
97 Camshaft Carrier Thrust Plate Bolt
10
--
89 Camshaft Carrier Thrust Plate Cover Bolt
10
--
89 Camshaft Drive Belt Cover Bolt
10
--
89 Camshaft Drive Sprocket Bolt
130
96
-- Camshaft Housing Assembly Bolt
27
20
-- Camshaft Position Sensor Bolt
50
37
-- Connecting Rod Cap Nut
20 +75°
15 +75°
-- Coolant By-Pass Nut
25
18
-- Coolant Inlet Housing Bolt
25
18
-- Coolant Outlet Bolt
27
20
-- Coolant Pump Bolt
11
--
97 Coolant Pump Pulley Bolt
25
18
-- Crankshaft Balancer Mounting Bolt
107
79
-- Crankshaft Main Bearing Cap Bolt
50+75°
37+75°
-- Crankshaft Main Bearing Cap Stud
50+75°
37+75°
-- Crankshaft Oil Deflector Nut
25
18
-- Crankshaft Pulley-to-Crankshaft Damper Bolt
60
44
-- Crankshaft Position Sensor Bolt-Front of
Engine
8
--
71 Crankshaft Position Sensor Bolt-Side of Engine
8
--
71 Crankshaft Position Sensor Harness Retaining
Bracket Bolt
5
--
45 Cylinder Head Bolt
60 +90°
44 +90°
-- Drive Belt Tensioner Bolt
50
37
-- EGR Valve Adapter Brace Nut
25
18
-- EGR Valve Adapter Stud
10
--
89 EGR Tube Assembly
25
18
-- EGR Valve Assembly Nut
25
18
-- Electronic Ignition Control Module Assemble
Bolt/Stud
25
18
-- Electronic Ignition Control Assembly Nut
25
18
-- Engine Block Coolant Drain Plug
19
14
-- Engine Block Oil Gallery Plug-Center Rear
16
12
-- Engine Block Oil Gallery Plug-Rear
33
24
-- Engine Block Oil Gallery Plug-Side of Block
19
14
-- Engine Coolant Temperature Sensor
18
13
-- Engine Motor Mount Frame Nut-Engine Left Side
43
32
-- Engine Motor Mount Bracket Nut-Engine Left
Side
43
32
-- Engine Motor Mount Frame Nut-Engine Right Side
43
32
-- Engine Motor Mount Bracket Nut-Engine Right
Side
47
35
-- Engine Motor Mount Bracket -Front of Block
Bolt-Engine Left Side
103
76
-- Engine Motor Mount Bracket-Side of Block
Bolts-Engine Left Side
58
43
-- Engine Motor Mount Bracket-Front of Block
Bolts-Engine Right Side
102
75
-- Engine Motor Mount Bracket-Side of Block
Bolt-Engine Right Side
58
43
-- Engine Motor Mount Bracket-Transaxle
Bolts-Engine Right Side
75
55
-- Engine Mount Strut Bracket Bolt
80
59
-- Engine Oil Cooler Connector
40
30
-- Engine Oil Level Sensor
22
16
-- Evaporator Emission Canister Purge Solenoid
Mounting Bracket Bolt
10
--
89 Exhaust Manifold Crossover Stud
9
--
80 Exhaust Manifold Nut
13
--
116 Exhaust Manifold Stud
17
13
-- Flywheel Bolt
82
60
-- Front Cover Coolant Drain Plug
25
18
-- Front Cover Bolts- Large
47
35
-- Front Cover Bolts - Small
27
20
-- Front Cover-to-Front Engine Lift Hook Bolt
25
18
-- Front Engine Lift Hook-to-Right Camshaft
Carrier Bolt
50
37
-- Front Engine Lift Hook-to-Right Cylinder Head
Bolt (Access through Front Cover)
50
37
-- Fuel Pipe Clip Bolt
7
--
62 Fuel Pipe Retainer Screw
3
--
27 Fuel Rail Assembly Bolt
10
--
89 Ignition Coil Bolt
25
18
-- Ignition Coil Nut
25
18
-- Intermediate Drive Shaft Retainer Screw
10
--
89 Intermediate Shaft Belt Sprocket Bolt
130
96
-- Knock Sensor
21
15
-- Lower Intake Manifold Mounting Bolt
13
--
116 Manifold Absolute Pressure Sensor Bracket Bolt
8
--
71 Oil Cooler Connector
40
30
-- Oil Cooler Hose Fitting
25
18
-- Oil Distribution Cover Bolt
27
20
-- Oil Filter
16
12
-- Oil Filter Fitting
67
49
-- Oil Level Indicator Bolt
10
--
89 Oil Pan Bolt-Except Rear
11
--
97 Oil Pan Bolt-Rear (2)
27
20
-- Oil Pan Drain Plug
25
18
-- Oil Pan Nut
11
--
97 Oil Pan Stud-to-Cylinder Block
10
--
89 Oil Pressure Switch
32
24
-- Oil Pump Cover Bolt
10
--
89 Oil Pump Drive Clamp Bolt
36
27
-- Oil Pump-to-Rear Main Cap Bolt
54
40
-- Power Brake Booster Vacuum Pipe Fitting
18
13
-- Rear Engine Mount Strut Bracket Bolt
82
60
-- Secondary Air Injection Pipe
25
18
-- Secondary Air Injection Pipe Nut-Left Side
25
18
-- Secondary Air Injection Pipe Support Bolt
10
--
89 Secondary Air Injection Pipe Nut-Right Side
10
--
89 Serpentine Drive belt tensioner bolt
50
37
-- Spark Plug
20
15
-- Throttle Body Adapter Bolt
25
18
-- Throttle Body Adapter Nut
25
18
-- Throttle Body Heater Outlet Hose Nipple
18
13
-- Throttle Body Stud
4
--
36 Throttle Body Bolt
10
--
89 Tie Bar Bracket
26
19
-- Timing Belt Cover Bolt
10
--
89 Timing Belt Idler Pulley Bolt
50
37
-- Timing Belt Tensioner Actuator Bracket Bolt
50
37
-- Timing Belt Tensioner Actuator Pulley Pivot
Bolt
50
37
-- Timing Belt Tenisoner Actuator Side Plate Bolt
27
20
-- Timing Chain Tensioner Bolt
27
20
-- Engine Mount Strut and Engine Lift Bracket
Bolt
70
52
-- Upper Intake Manifold Retaining Bolt
26
19
-- Water Inlet Fitting to Front Cover
27
20
-- Vacuum Source Manifold Mounting Bolt
7
--
62
Application
Millimeters
Inches General Data Engine Type
--
60° V-6 Displacement
--
204 Cu In Liter (VIN)
--
3.4 (X) RPO
--
LQ1 Bore
92
3.622 Stroke
84
3.307 Deck Height
224
8.818 Compression Ratio
--
9.50:1 Firing Order
--
1-2-3-4-5-6 Oil Pressure @ Operating Temperature
103 kPa @ 1100 RPM
15 psi min @ 1100 RPM Cylinder Bore Diameter
92.020-92.038
3.6228-3.6235 Out Of Round Maximum
0.010
0.0004 Taper -- Thrust Side Maximum
0.013
0.00051 Center Distance
111.76
4.4 Piston Diameter-gauged at skirt 10.44 mm
(0.413 in) below centerline of piston pin bore
91.985-92.000
3.6215-3.6220 Clearance
0.020-0.052
0.0008-0.0020 Pin Bore
23.003-23.010
0.9056-0.9059 Piston Ring Compression Groove Clearance 1st and 2nd
0.033-0.079
0.0013-0.0031 Gap (at gauge diameter) 1st
0.20-0.45
0.008-0.018 Gap (at gauge diameter) 2nd
0.56-0.81
0.022-0.032 Oil Groove Clearance
0.028-0.206
0.0011-0.0081 Gap (segment at gauge diameter)
0.25-0.76
0.0098-0.0299 Tension 1st
27.6 N
6.2 lbs Tension 2nd
19.8 N
4.5 lbs Tension Oil
31.2 N
7.0 lbs Piston Pin Diameter
22.9915-22.9964
0.9052-0.9054 Clearance
0.0066-0.0185
0.00026-0.00073 Fit In Rod
0.0165-0.0464
0.0006-0.0018 Crankshaft Main Journal Diameter-All
67.239-67.257
2.6472-2.6479 Taper-Maximum
0.005
0.0002 Out Of Round-Maximum
0.005
0.0002 Cylinder Block Main Bearing Bore Diameter
72.155-72.168
2.8407-2.8412 Crankshaft Main Bearing Inner Diameter
67.289-67.316
2.6492-2.6502 Main Bearing Clearance
0.019-0.064
0.0008-0.0025 Main Thrust Bearing Clearance
0.032-0.077
0.0013-0.0030 Crankshaft End Play
0.06-0.21
0.002-0.008 Crankpin Diameter
50.768-50.784
1.9987-1.9994 Taper-Maximum
0.005
0.0002 Out Of Round-Maximum
0.005
0.0002 Rod Bearing Bore Diameter
53.962-53.984
2.124-2.125 Rod Inner Bearing Diameter
50.812-50.850
2.000-2.002 Rod Bearing Clearance
0.018-0.062
0.0007-0.0024 Rod Side Clearance
0.18-0.44
0.0071-0.0173 Camshaft Lobe Lift (Intake)
9.398 @ 108° Crank ATDC
0.370 @ 108° Crank ATDC Lobe Lift (Exhaust)
9.389 @ 115° Crank BTDC
0.370 @ 115° Crank BTDC Timing Reference Set Position with Camshaft
Timing Flats in Clamped Position-Right Bank
--
TDC-1Piston Exhaust Stroke +/- 2° of Crankshaft Timing Reference Set Position with Camshaft
Timing Flats in Clamped Position-Left Bank
--
TDC-4 Piston Exhaust Stroke +/- 2° of Crankshaft Journal Diameter
54.973-55.001
2.1643-2.1654 Bore Inside Diameter
55.050-55.075
2.1673-2.1683 Journal Clearance
0.049-0.102
0.0019-0.0040 Valve System Lifter
--
Hydraulic Face Angle
--
45° Seat Angle
--
46° Seat Runout-Maximum
0.075
0.0030 Seat Width Intake
1.25-1.50
0.0492-0.0591 Exhaust
1.60-1.90
0.063-0.0748 Valve Margin-Minimum
0.75
0.029 Stem Clearance Intake
0.028-0.066
0.0011-0.0026 Stem Clearance Exhaust
0.046-0.084
0.0018-0.0033 Valve Spring Free Length
42.04
1.6551 Load (Closed)-All
289 N @ 35.56
65 lb @ 1.400 Load (Open)-All
711 N @ 26.16
160 lb @ 1.030 Approximate Number of Active Coils
--
4 Oil Pump Valve to Bore Clearance
0.038-0.089
0.0015-0.0035 Gear Lash
0.094-0.195
0.0037-0.0077 Gear Pocket Depth
30.53-30.61
1.202-1.205 Diameter
38.202-38.252
1.504-1.506 Gear Length
30.45-30.48
1.199-1.20 Diameter
38.05-38.10
1.498-1.50 Side Clearance
0.08-0.10
0.003-0.004 End Clearance
0.05-0.152
0.002-0.006 3.4L (DOHC) Fastener Tightening Specifications
Application
N·m
Lb Ft
Lb In Accelerator Control Cable Bracket Bolt
10
--
89 Accelerator Control Cable Bracket Nut
10
--
89 Camshaft Carrier Cover Bolt
11
--
97 Camshaft Carrier Thrust Plate Bolt
10
--
89 Camshaft Carrier Thrust Plate Cover Bolt
10
--
89 Camshaft Drive Belt Cover Bolt
10
--
89 Camshaft Drive Sprocket Bolt
130
96
-- Camshaft Housing Assembly Bolt
27
20
-- Camshaft Position Sensor Bolt
50
37
-- Connecting Rod Cap Nut
20 +75°
15 +75°
-- Coolant By-Pass Nut
25
18
-- Coolant Inlet Housing Bolt
25
18
-- Coolant Outlet Bolt
27
20
-- Coolant Pump Bolt
11
--
97 Coolant Pump Pulley Bolt
25
18
-- Crankshaft Balancer Mounting Bolt
107
79
-- Crankshaft Main Bearing Cap Bolt
50+75°
37+75°
-- Crankshaft Main Bearing Cap Stud
50+75°
37+75°
-- Crankshaft Oil Deflector Nut
25
18
-- Crankshaft Pulley-to-Crankshaft Damper Bolt
60
44
-- Crankshaft Position Sensor Bolt-Front of
Engine
8
--
71 Crankshaft Position Sensor Bolt-Side of Engine
8
--
71 Crankshaft Position Sensor Harness Retaining
Bracket Bolt
5
--
45 Cylinder Head Bolt
60 +90°
44 +90°
-- Drive Belt Tensioner Bolt
50
37
-- EGR Valve Adapter Brace Nut
25
18
-- EGR Valve Adapter Stud
10
--
89 EGR Tube Assembly
25
18
-- EGR Valve Assembly Nut
25
18
-- Electronic Ignition Control Module Assemble
Bolt/Stud
25
18
-- Electronic Ignition Control Assembly Nut
25
18
-- Engine Block Coolant Drain Plug
19
14
-- Engine Block Oil Gallery Plug-Center Rear
16
12
-- Engine Block Oil Gallery Plug-Rear
33
24
-- Engine Block Oil Gallery Plug-Side of Block
19
14
-- Engine Coolant Temperature Sensor
18
13
-- Engine Motor Mount Frame Nut-Engine Left Side
43
32
-- Engine Motor Mount Bracket Nut-Engine Left
Side
43
32
-- Engine Motor Mount Frame Nut-Engine Right Side
43
32
-- Engine Motor Mount Bracket Nut-Engine Right
Side
47
35
-- Engine Motor Mount Bracket -Front of Block
Bolt-Engine Left Side
103
76
-- Engine Motor Mount Bracket-Side of Block
Bolts-Engine Left Side
58
43
-- Engine Motor Mount Bracket-Front of Block
Bolts-Engine Right Side
102
75
-- Engine Motor Mount Bracket-Side of Block
Bolt-Engine Right Side
58
43
-- Engine Motor Mount Bracket-Transaxle
Bolts-Engine Right Side
75
55
-- Engine Mount Strut Bracket Bolt
80
59
-- Engine Oil Cooler Connector
40
30
-- Engine Oil Level Sensor
22
16
-- Evaporator Emission Canister Purge Solenoid
Mounting Bracket Bolt
10
--
89 Exhaust Manifold Crossover Stud
9
--
80 Exhaust Manifold Nut
13
--
116 Exhaust Manifold Stud
17
13
-- Flywheel Bolt
82
60
-- Front Cover Coolant Drain Plug
25
18
-- Front Cover Bolts- Large
47
35
-- Front Cover Bolts - Small
27
20
-- Front Cover-to-Front Engine Lift Hook Bolt
25
18
-- Front Engine Lift Hook-to-Right Camshaft
Carrier Bolt
50
37
-- Front Engine Lift Hook-to-Right Cylinder Head
Bolt (Access through Front Cover)
50
37
-- Fuel Pipe Clip Bolt
7
--
62 Fuel Pipe Retainer Screw
3
--
27 Fuel Rail Assembly Bolt
10
--
89 Ignition Coil Bolt
25
18
-- Ignition Coil Nut
25
18
-- Intermediate Drive Shaft Retainer Screw
10
--
89 Intermediate Shaft Belt Sprocket Bolt
130
96
-- Knock Sensor
21
15
-- Lower Intake Manifold Mounting Bolt
13
--
116 Manifold Absolute Pressure Sensor Bracket Bolt
8
--
71 Oil Cooler Connector
40
30
-- Oil Cooler Hose Fitting
25
18
-- Oil Distribution Cover Bolt
27
20
-- Oil Filter
16
12
-- Oil Filter Fitting
67
49
-- Oil Level Indicator Bolt
10
--
89 Oil Pan Bolt-Except Rear
11
--
97 Oil Pan Bolt-Rear (2)
27
20
-- Oil Pan Drain Plug
25
18
-- Oil Pan Nut
11
--
97 Oil Pan Stud-to-Cylinder Block
10
--
89 Oil Pressure Switch
32
24
-- Oil Pump Cover Bolt
10
--
89 Oil Pump Drive Clamp Bolt
36
27
-- Oil Pump-to-Rear Main Cap Bolt
54
40
-- Power Brake Booster Vacuum Pipe Fitting
18
13
-- Rear Engine Mount Strut Bracket Bolt
82
60
-- Secondary Air Injection Pipe
25
18
-- Secondary Air Injection Pipe Nut-Left Side
25
18
-- Secondary Air Injection Pipe Support Bolt
10
--
89 Secondary Air Injection Pipe Nut-Right Side
10
--
89 Serpentine Drive belt tensioner bolt
50
37
-- Spark Plug
20
15
-- Throttle Body Adapter Bolt
25
18
-- Throttle Body Adapter Nut
25
18
-- Throttle Body Heater Outlet Hose Nipple
18
13
-- Throttle Body Stud
4
--
36 Throttle Body Bolt
10
--
89 Tie Bar Bracket
26
19
-- Timing Belt Cover Bolt
10
--
89 Timing Belt Idler Pulley Bolt
50
37
-- Timing Belt Tensioner Actuator Bracket Bolt
50
37
-- Timing Belt Tensioner Actuator Pulley Pivot
Bolt
50
37
-- Timing Belt Tenisoner Actuator Side Plate Bolt
27
20
-- Timing Chain Tensioner Bolt
27
20
-- Engine Mount Strut and Engine Lift Bracket
Bolt
70
52
-- Upper Intake Manifold Retaining Bolt
26
19
-- Water Inlet Fitting to Front Cover
27
20
-- Vacuum Source Manifold Mounting Bolt
7
--
62