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.
Installation Procedure
- Install the transmission support to the frame.NOTE: Refer to Fastener Notice in Cautions and Notices.
- Install the upper transmission support to the frame mounting bolts.
Tighten
Tighten the upper transmission support to the frame mounting bolts to 50 N.m (37 lb.ft).
- Install the lower transmission support to the frame mounting bolts.
Tighten
Tighten the bolts to 46 N.m (35 lb.ft).
- Lower the transmission onto the transmission support.
- Install the transmission mount to the transmission support retaining nuts.
Tighten
Tighten the transmission mount to the transmission support retaining nuts to 46 N.m (35 lb.ft).
- Install the evaporative emission (EVAP) canister. Refer to Evaporative Emission (EVAP) Canister Replacement (TrailBlazer, Envoy, Bravada) or Evaporative Emission (EVAP) Canister Replacement (TrailBlazer EXT, Envoy XL) in Engine Controls.
- Install the fuel tank shield. Refer to FUEL TANK SHIELD REPLACEMENT (TRAILBLAZER, ENVOY) or FUEL TANK SHIELD REPLACEMENT (TRAILBLAZER EXT, ENVOY XL) .
- Lower the vehicle.
NO RELATED
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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.