What causes the transmission failure in the Buick LaCrosse 2.4?
1 Answers
Buick LaCrosse 2.4 transmission warning light may illuminate due to faults in wiring or engine components. Here are detailed explanations of potential causes: 1. Starting system failure: Engine fails to crank or cranks too slowly, caused by insufficient battery charge, loose or severely oxidized battery terminals; faulty ignition switch, starter motor failure, open circuit in starting wiring or poor connector contact. 2. Ignition system failure: Malfunctioning ignition coil resulting in weak or no high-voltage spark, faulty igniter. 3. Fuel injection system failure: Empty fuel tank, inoperative fuel pump or low pumping pressure, leaking or deformed fuel lines, open circuit relay, malfunctioning fuel pressure regulator, excessively dirty fuel filter.