What Happens When the Fan Control Circuit 1 of the Buick LaCrosse Fails?
1 Answers
When the fan control circuit 1 of the Buick LaCrosse fails, it generally leads to the following two situations: 1. The electric fan runs continuously at low speed but operates normally at high speed, with specific manifestations including: (1) The coolant temperature gauge needle takes a long time to reach the normal operating temperature; (2) The engine lacks power, and fuel consumption and emissions increase; (3) Poor heating effect of the air conditioning. 2. The electric fan operates normally at low speed but does not run at high speed, with specific manifestations including: (1) The coolant temperature exceeds the normal operating temperature, and the needle points to the red zone; (2) The engine runs roughly, lacks acceleration power, and emissions increase; (3) Poor cooling effect of the air conditioning. When encountering the above situations, the circuit should be inspected and repaired promptly to avoid more serious problems with the car.