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 MANUALSCHEVROLET2010HHR L4-2.4LREPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTENGINESERVICE AND REPAIROVERHAULOVERHAUL PROCEDURE STEPS
2010 Chevrolet HHR L4-2.4L
Overhaul Procedure Steps
2010 Chevrolet HHR L4-2.4LSECTION Overhaul Procedure Steps
ENGINE OVERHAUL
In order to overhaul, follow the sequence below.
1. Draining Fluids and Oil Filter Removal
2. Crankshaft Balancer Removal
3. Engine Flywheel Removal
4. Oil Level Indicator and Tube Removal
5. Exhaust Manifold Removal
6. Intake Manifold Removal
7. Camshaft Cover Removal
8. Engine Front Cover and Oil Pump Removal
9. Timing Chain and Tensioner Removal
10. Intake and Exhaust Camshaft, Bearing Cap, and Lash Adjuster Removal
11. Water Pump and Balance Shaft Chain and Tensioner Removal
12. Balance Shaft Removal
13. Water Pump Removal
14. Cylinder Head Removal
15. Oil Pan Removal
16. Piston, Connecting Rod, and Bearing Removal
17. Lower Crankcase Removal
18. Crankshaft and Bearing Removal
19. Engine Block Disassemble
20. Engine Block Cleaning and Inspection
21. Cylinder Honing
22. Cylinder Sleeve Removal
23. Cylinder Sleeve Installation
24. Crankshaft Balancer Cleaning and Inspection
25. Engine Flywheel Cleaning and Inspection
26. Crankshaft and Bearing Cleaning and Inspection
27. Piston and Connecting Rod Disassemble
28. Piston, Connecting Rod, and Bearing Cleaning and Inspection
29. Piston and Connecting Rod Assemble
30. Camshaft Cleaning and Inspection
31. Camshaft Timing Chain and Sprocket Cleaning and Inspection
32. Balance Shaft Cleaning and Inspection
33. Water Pump and Balance Shaft Chain and Sprocket Cleaning and Inspection
34. Cylinder Head Disassemble
35. Cylinder Head Cleaning and Inspection
36. Valve and Seat Grinding
37. Cylinder Head Assemble
38. Oil Pump Disassemble
39. Oil Pump Assemble
40. Intake Manifold Cleaning and Inspection
41. Exhaust Manifold Cleaning and Inspection
42. Oil Pan Cleaning and Inspection
43. Thread Repair
44. Service Prior to Assembly
45. Engine Block Assemble
46. Crankshaft and Bearing Installation
47. Lower Crankcase Installation
48. Crankshaft Rear Oil Seal Installation
49. Piston, Connecting Rod, and Bearing Installation
50. Cylinder Head Installation
51. Intake and Exhaust Camshaft, Bearing Cap, and Lash Adjuster Installation
52. Balance Shaft Installation
53. Water Pump Installation
54. Balance Shaft to Engine Timing
55. Water Pump and Balance Shaft Chain and Tensioner Installation
56. Camshaft Timing Chain, Sprocket, and Tensioner Installation
57. Crankshaft Front Oil Seal Installation
58. Engine Front Cover and Oil Pump Installation
59. Oil Pan Installation
60. Crankshaft Balancer Installation
61. Camshaft Cover Installation
62. Oil Filter with Cap and Seal Installation
63. Intake Manifold Installation
64. Exhaust Manifold Installation
65. Oil Level Indicator and Tube Installation
66. Engine Flywheel Installation
67. Engine Prelubing
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.