2020 BUICK Regal LTG (E2)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Turbocharger wastegate rattle reported in some units
• Timing chain tensioner noise under specific conditions

First checks

• Verify maintenance history for oil change and spark plug replacement
• Inspect turbocharger for unusual noises or leaks

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

• The Regal 2020 is mainly available in North America and China with differing transmissions and minor power tune variations.
• The model in North America is discontinued after 2020; the China market version continues production under different naming.