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.
2003 Chevrolet Impala LSFACTORY OEM SERVICE PROCEDURE
Fluid Capacity (Cooling System)
FLUID CAPACITY (COOLING SYSTEM) (1)
| Application | (2) Quantity - Qts. (L) | |||||
|---|---|---|---|---|---|---|
| 3.1L | ||||||
| Century | 11.6 (10.9) | |||||
| Grand Prix | 11.0 (10.4) | |||||
| 3.4L | ||||||
| Monte Carlo | 11.3 (10.7) | |||||
| 3.8L | ||||||
| Century, Regal | 12.3 (11.6) | |||||
| Grand Prix | 11.2 (10.6) | |||||
| Impala & Monte Carlo | 11.7 (11.0) | |||||
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Factory Service Tools
Use the Manual With the Right Hardware
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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.
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