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.
Transmission Mount Replacement - Left Side
2011 Chevrolet HHR L4-2.2LSECTION Transmission Mount Replacement - Left Side
Transmission Mount Replacement - Left Side
Removal Procedure
1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (Battery Negative Cable Disconnection and Connection).
2. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle (Service and Repair).
3. Remove the front transmission mount thru bolt.
4. Remove the rear transmission mount thru bolt.
5. Lower the vehicle.
6. Remove the underhood electrical center cover.
7. Disconnect the engine control module harness connector (3, 4).
8. Disconnect the positive battery cables (1) from the under hood electrical center.
9. Remove the underhood electrical center tray bracket nuts (1) and bolt (2).
10. Disconnect the wiring harness retainer from the tray bracket.
11. Lift the electrical center up and swing it back and out of the way.
12. Support the transmission with an hydraulic floor jack. Use a block of wood between the jack and the transmission.
13. Remove the transmission mount to transmission bolts.
14. Remove the transmission mount to mid-rail bolts.
15. Using the floor jack, slowly lower the transmission just enough to remove the transmission mount from the vehicle.
Installation Procedure
1. Install the transmission mount to the mid-rail.
Caution: Refer to Fastener Caution (Fastener Caution).
2. Hand start the transmission mount to mid-rail bolts. Tighten the bolts to 34 Nm (25 lb ft).
3. Using a hydraulic jack, raise the transmission until it contacts the transmission mount.
Note: The transmission mount to transmission bolts must be hand started. Do not pry the transmission or mount to align the holes.
4. Hand start the transmission mount to transmission bolts using the following sequence:
1. Rear Bolt
2. Middle Bolt
3. Front Bolt
5. Using the previous sequence, tighten the transmission mount bolts to 65 Nm (48 lb ft).
6. Reposition the underhood electrical center.
7. Connect the wiring harness retainer to the tray bracket.
8. Install the electrical center nuts (1) and bolts (2).
* Tighten the nut to 10 Nm (89 lb in).
* Tighten the bolt to 25 Nm (18 lb ft).
9. Install the positive battery cables (1) to the underhood electrical center. Tighten the positive cable nut to 15 Nm (11 lb ft).
10. Connect the engine control module harness connectors (3, 4).
11. Install the underhood electrical center cover.
12. Raise the vehicle.
13. Hand tighten the front transmission mount thru bolt.
14. Hand tighten the rear transmission mount thru bolt.
15. Tighten the front transmission mount thru bolt to 100 Nm (74 lb ft).
16. Tighten the rear transmission mount thru bolt to 100 Nm (74 lb ft).
17. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (Battery Negative Cable Disconnection and Connection).
RENDER: 1.0x
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.