What happens if you have a bad PCM in your car?
What happens if you have a bad PCM in your car? If your automatic transmission vehicle isn’t shifting normally, take it to a mechanic immediately. A failed PCM or TCM can cause the car to get stuck in gear, which can be a serious safety issue. It can also lead to costly transmission damage. What are the symptoms of a bad PCM solo? Possible causes include: 1 An improperly-balanced fuel-to-air ratio 2 Improper engine timing 3 A short in the wiring harness What happens if my PCM fails the emissions test? This may cause you to fail your state’s emissions...