Engine Component Description (LF4): Notes

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.

The High Feature V6 (VIN Code Identifier "8") RPO LF4 is a 3.6 Liter VVT (Variable Valve Timing) engine with direct injection and twin turbochargers. The LF4 has an Integral Charge-Air Cooler Module (IACM) with an internally-mounted throttle body to cool and meter the airflow into the engine. The direct injection system places the high pressure injectors in the cylinder heads. This engine incorporates 2 intake and 2 exhaust valves per cylinder, and uses a dual overhead cam design with individual intake and exhaust camshafts. A camshaft position actuator is mounted on each camshaft. The cylinders are arranged in 2 banks of 3 with a 60 degree included angle. The right bank of cylinders are number 1-3-5 and the left bank of cylinders are 2-4-6, viewed from the flywheel end of the engine. The engine firing order is 1-2-3-4-5-6.