Transmission won’t shift past 3rd gear
2 Answers
When an automatic transmission will shift up to second, but won't work beyond that, it might caused by a low fluid level. This can cause many shift problems and should be the first thing you check. If fluid is at the proper level and clean, check linkage, especially if the vehicle is older, like your Malibu, or high on miles. Linkage can wear out and cables can stretch. Next, the problem could be electrical. Might be as simple as a bad speed sensor or a PCM problem.