2003 CADILLAC Deville L37 (GM K)
GM K / Sedan / North America / select global markets
L37Registro exacto de año/versiónGold
Engine identity
Oils and fluids
Service and parts data
Common and chronic problems
- Head gasket failures in high mileage
- Intake manifold gasket leaks
- Timing chain tensioner wear
First checks
- Inspect coolant system and thermostat
- Check ignition coil packs
- Verify proper transmission fluid level
Antes de cambiar piezas
- Save fault codes and freeze-frame data before clearing anything.
- Check engine oil, coolant and transmission fluid using the correct temperature and service procedure.
- Verify power, ground, connectors, hoses, leaks and live data before replacing expensive parts.
Important notes
- 2003 DeVille primarily sold in North America; select exports to Middle East and Asia.
- Engine codes and specs are consistent for North American market; other markets may have minor variations.