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 MANUALSCHEVROLET2009HHR L4-2.4LREPAIR AND DIAGNOSISTRANSMISSION AND DRIVETRAINAUTOMATIC TRANSMISSION/TRANSAXLESERVICE AND REPAIROVERHAULCASE INSPECTION
2009 Chevrolet HHR L4-2.4L
Case Inspection
2009 Chevrolet HHR L4-2.4LSECTION Case Inspection
Case Inspection
Special Tools
J 36850 - Assembly Lubricant
For equivalent regional tools, refer to Special Tools (Tools and Equipment).
Caution: Use J 36850 or equivalent during assembly in order to retain checkballs or to lubricate components. Lubricants other than the recommended assembly lube changes the transmission fluid characteristics and causes undesirable shift conditions or filter clogging.
Note: After cleaning the transmission case, allow the case to air dry. Do not use cloth or paper towels in order to dry the transmission case or any other transmission components. Lint from the towels can cause component failure.
1. Thoroughly clean the transmission case and all the case threads with solvent.
2. Inspect the case exterior and the external bores for cracks, sharp edges, porosity and excessive bushing wear.
3. Inspect the case interior for damage at the snap ring grooves, case lugs and band anchor pin.
4. Inspect all the gasket surfaces for surface damage and in order to ensure surface flatness.
5. Inspect the corresponding gasket for proper impressions in order to ensure surface flatness.
6. Inspect the bolt holes and fasteners for thread damage. If necessary, repair or replace any bolt holes or fasteners.
7. Air check the oil passages. For identification of the oil passages, refer to the transmission diagnosis section.
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.