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 MANUALSCHEVROLET2009IMPALA V8-5.3LREPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTENGINETIMING COMPONENTSSPECIFICATIONS
2009 Chevrolet Impala V8-5.3L
Timing Components: Specifications
2009 Chevrolet Impala V8-5.3LSECTION Specifications
TIMING CHAIN TENSIONER
Tensioner Bolts 25 Nm (18 lb ft)
ENGINE FRONT COVER (TIMING COVER)
Engine front cover bolts 25 Nm (18 lb ft)
CRANKSHAFT PULLEY
Crankshaft balancer bolt
first pass 150 Nm (111 lb ft)
Second Pass 360 degrees
Third Pass 50 Nm (37 lb ft)
final pass 230 degrees
Tensioner Bolts 25 Nm (18 lb ft)
ENGINE FRONT COVER (TIMING COVER)
Engine front cover bolts 25 Nm (18 lb ft)
CRANKSHAFT PULLEY
Crankshaft balancer bolt
first pass 150 Nm (111 lb ft)
Second Pass 360 degrees
Third Pass 50 Nm (37 lb ft)
final pass 230 degrees
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.