What are the reasons for the Buick LaCrosse having power but no response when starting?
1 Answers
There are several reasons why the Buick LaCrosse has power but no response when starting: 1. Starter damage: (1) Symptom 1: No response when turning to START. The starter solenoid is damaged. (2) Symptom 2: A "click" sound is heard when turning to START, but the starter does not rotate. The main contacts of the starter solenoid are damaged, or the starter winding is damaged. (3) Symptom 3: A "click" sound is heard when turning to START, and the starter rotates at high speed. The starter one-way clutch is damaged. 2. Engine ignition system failure: The symptom is that when turning to START, the engine can be dragged to rotate (100r/min), but the engine does not start. When the high-voltage wire (or ignition coil) is unplugged, there is no spark when turning to START. 3. Engine fuel supply system failure: When in the IG position, the "buzzing" sound of the fuel pump working cannot be heard from the fuel tank area.