Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHEVROLET2025TRAILBLAZER ACTIV, FWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 4 (ENGINE MECHANICAL - 1.2L (LBP) - SPECIFICATIONS)SPECIFICATIONSFASTENER SPECIFICATIONS
2025 Chevrolet Trailblazer ACTIV, FWD
Fastener Specifications
2025 Chevrolet Trailblazer ACTIV, FWDSECTION Fastener Specifications
WARNING: This page is about a different variant/trim than selected.
Single Use Non-Threaded Fasteners/Components
| Application |
|---|
|
NOTE:
All fasteners/components listed in this table MUST BE DISCARDED and replaced with NEW after removal. |
| Camshaft Cover Gasket |
| Camshaft Position Sensor Seal |
| Combustion Fuel Injector Seal |
| Crankshaft Front Seal |
| Cylinder Head Gasket |
| Engine Coolant Thermostat Gasket |
| Engine Oil Cooler Gasket |
| Fuel Feed Intermediate Pipe |
| Fuel Injector Retainer |
| Fuel Injector Seal |
| Fuel Injector Seal Retainer |
| Fuel Pump Seal |
| Intake Manifold Seal |
| Oil Flow Check Valve Seal |
| Oil Pan Drain Plug Seal |
| Oil Pan High Pressure Port Seal |
| Oil Pump Flow Control Valve Seal |
| Oil Pump Gasket |
| Seal @ Camshaft Position Actuator Solenoid Valve Solenoid |
| Seal @ Engine Oil Pressure Sensor |
| Seal @ Intake Air Pressure and Temperature Sensor |
| Throttle Body Seal |
| Turbocharger Coolant Feed Pipe Seal |
| Turbocharger Oil Feed Pipe Washer |
| Turbocharger Oil Feed Pipe Seal Ring |
| Turbocharger Oil Return Pipe Gasket |
| Vacuum Pump Gasket |
| Water Outlet Gasket |
| Water Pump Gasket |
| Water Pump Housing Gasket |
Single Use Threaded Fastener/Component Tightening Specifications
|
NOTE:
All fasteners/components listed in this table MUST BE DISCARDED and replaced with NEW after removal. |
|
|---|---|
| Application | Specification |
| Metric (English) | |
| Automatic Transmission Flex Plate Bolt Refer to procedure for tightening sequence and torque values. |
Automatic Transmission Flex Plate Installation |
| Balancer Shaft Weight Bolt | |
|
30 N.m (22 lb ft) |
|
70 degrees |
| Camshaft Sprocket Actuator Valve Bolt | |
|
50 N.m (37 lb ft) |
|
28 degrees |
| Connecting Rod Bearing Cap Bolt | |
|
20 N.m (15 lb ft) |
|
60 degrees |
| Crankshaft Balancer Bolt | |
|
150 N.m (111 lb ft) |
|
150 degrees |
| Crankshaft Bearing Cap Bolt Refer to procedure for tightening sequence and torque values. |
Crankshaft and Bearing Installation |
| Cylinder Head Bolt Refer to procedure for tightening sequence and torque values. |
Cylinder Head Installation |
| Fuel Injection Fuel Feed Front Pipe Nut | 30 N.m (22 lb ft) |
| Turbocharger Nut Refer to procedure for tightening sequence and torque values. |
Compressor Air Intake Turbocharger Installation |
Reusable Threaded Fastener Tightening Specifications
|
NOTE:
All fasteners listed in this table can be reused after removal. |
|
|---|---|
| Application | Specification |
| Metric (English) | |
| Camshaft Bearing Cap Bolt Refer to procedure for tightening sequence and torque values. |
Exhaust Camshaft Installation Intake Camshaft Installation |
| Camshaft Cover Bolt Refer to procedure for tightening sequence and torque values. |
Camshaft Cover Installation |
| Camshaft Cover Heat Shield Bolt | 7 N.m (62 lb in) |
| Camshaft Position Actuator Valve Solenoid Bolt | 8.5 N.m (75 lb in) |
| Camshaft Position Sensor Bolt | 8.5 N.m (75 lb in) |
| Charge Air Bypass Regulator Solenoid Valve Bolt | 7 N.m (62 lb in) |
| Crankshaft Position Sensor Bolt | 8.5 N.m (75 lb in) |
| Crankshaft Rear Oil Seal Housing Bolt Refer to procedure for tightening sequence and torque values. |
Crankshaft Rear Oil Seal Housing Installation |
| Cylinder Head Bolt - M6 | 15 N.m (11 lb ft) |
| Cylinder Head Oil Gallery Plug | 22 N.m (16 lb ft) |
| Drive Belt Tensioner Bolt | 22 N.m (16 lb ft) |
| Engine Block Oil Gallery Plug | 15 N.m (11 lb ft) |
| Engine Coolant Heater Bolt | 25 N.m (18 lb ft) |
| Engine Coolant Thermostat Housing Bolt | 8.5 N.m (75 lb in) |
| Engine Front Cover Bolt Refer to procedure for tightening sequence and torque values. |
Timing Belt Lower Cover Installation |
| Engine Oil Cooler Bolt | 9.5 N.m (84 lb in) |
| Engine Oil Pressure Sensor | 35 N.m (26 lb ft) |
| Evaporative Emission Canister Purge Pump Bolt | 8.5 N.m (75 lb in) |
| Fuel Injection Fuel Feed Pipe Bolt | 8.5 N.m (75 lb in) |
| Fuel Injection Fuel Rail Bolt | 36 N.m (27 lb ft) |
| Fuel Injection Fuel Rail Fuel Pressure Sensor | 32.5 N.m (24 lb ft) |
| Fuel Pump Bolt | 36 N.m (27 lb ft) |
| Fuel Pump Shield Bolt | 8.5 N.m (75 lb in) |
| Ignition Coil Bolt | 8.5 N.m (75 lb in) |
| Intake Air Pressure and Temperature Sensor Bolt | 8.5 N.m (75 lb in) |
| Intake Manifold Bolt Refer to procedure for tightening sequence and torque values. |
Intake Manifold Installation |
| Knock Sensor Bolt | 15 N.m (11 lb ft) |
| Lower Oil Pan Bolt Refer to procedure for tightening sequence and torque values. |
Lower Oil Pan Installation |
| Manifold Absolute Pressure Sensor Bolt | 8.5 N.m (75 lb in) |
| Oil Filter | 1 full turn after gasket makes contact with the sealing surface on the filter mounting flange |
| Oil Filter Fitting | 50 N.m (37 lb ft) |
| Oil Pan Drain Plug | 14 N.m (124 lb in) |
| Oil Pump Bolt Refer to procedure for tightening sequence and torque values. |
Oil Pump Installation |
| Oil Pump Flow Control Solenoid Valve Bolt | 8.5 N.m (75 lb in) |
| Oil Pump Screen Bolt | 8 N.m (71 lb in) |
| Piston Oil Nozzle Bolt | 15 N.m (11 lb ft) |
| Spark Plug | 16 N.m (12 lb ft) |
| Thermostat Bypass Pipe Bolt | 8.5 N.m (75 lb in) |
| Throttle Body Bolt | 8.5 N.m (75 lb in) |
| Timing Belt Idler Pulley Bolt | 25 N.m (18 lb ft) |
| Timing Belt Tensioner Bolt | 36 N.m (27 lb ft) |
| Turbocharger Coolant Feed Pipe Bolt | 15 N.m (11 lb ft) |
| Turbocharger Coolant Return Pipe Bolt | 8.5 N.m (75 lb in) |
| Turbocharger Heat Shield Bolt | 8.5 N.m (75 lb in) |
| Turbocharger Oil Feed Pipe Bolt @ Compressor Air Intake Turbocharger | 32 N.m (24 lb ft) |
| Turbocharger Oil Feed Pipe Bolt @ Cylinder Head | 8.5 N.m (75 lb in) |
| Turbocharger Oil Return Pipe Bolt | 8.5 N.m (75 lb in) |
| Turbocharger Stud | 10 N.m (89 lb in) |
| Turbocharger Wastegate Actuator Nut | 7 N.m (62 lb in) |
| Turbocharger Wastegate Actuator Vacuum Control Solenoid Valve Bolt | 15 N.m (11 lb ft) |
| Upper Oil Pan Bolt Refer to procedure for tightening sequence and torque values. |
Lower Crankcase Extension Installation |
| Upper Oil Pan Hole Plug | 40 N.m (30 lb ft) |
| Vacuum Pump Bolt Refer to procedure for tightening sequence and torque values. |
Vacuum Pump Installation |
| Water Outlet Bolt | 8.5 N.m (75 lb in) |
| Water Pump Bolt | 7.5 N.m (66 lb in) |
| Water Pump Housing Bolt Refer to procedure for tightening sequence and torque values. |
Water Pump Installation |
| Water Pump Pulley Bolt | 15 N.m (11 lb ft) |
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.