Buick Regal intermittent starting issue requiring solenoid wire connection on Buick Regal

Some Buick Regal owners report experiencing intermittent starting issues potentially linked to the solenoid wire connection. These problems may arise from a faulty solenoid, which can cause inconsistent engagement of the starter motor with the flywheel. Additionally, internal wiring or switching mechanism issues within the starter solenoid can contribute to these intermittent problems. High resistance in the wire harness leading to the "S" terminal of the starter solenoid may result in low amperage or voltage delivery, further complicating the starting issue. Some owners also note that deformed or collapsed terminals in the Engine Wiring Junction Block connectors can lead to poor connections, necessitating corrective service procedures. Common causes for clicking noises and failure to crank include a weak battery, corrosion on battery terminals, poor electrical connections, bad ground connections, and a faulty starter motor. It is advisable for owners experiencing these issues to inspect the solenoid, wiring, harness, and terminals, and to check starter motor voltages to effectively diagnose and resolve the problem.