We had a 2005 Chevy Cobalt with intermittent electrical problems. Trips to dealers didn't resolve the issue. Brought it to MGA 3 times over the years and they never caught it either, which was disappointing. The clues were visible right under the hood. Finally, a dealership service department in Bloomington found the problem, but it cost me a lot of $$$ over the years, even at MGA, to find and finally fix the problem.
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