Buick Repair Questions? Ask a Mechanic for Answers ASAP
Hi There, I'm Clayso a certified master automobile technician with 30 years of automotive repair and diagnostic experience.
From your description there are 2 possibilities. The ignition switch can fail internally and signal the start circuit with the key in the run position. The is also a Technical Service Bulletin (TSB) concerning deformed or collapsed terminals in the Underhood Bussed Electrical Center (UBEC), (fuse box) with the same symptoms. I have the TSB, if you would like a copy let me know. From you description on the instrument panel, I'd lean more towards an ignition switch, but this could really go either way.
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Hi there, I'm following up on any progress with this repair. I hope the information I gave was helpful. If you have any questions or run into any problems let me know.