Model Year Comparison
- Worst Model Year
- Worst Category
- engine Problems
We don't have a lot of complaints on file for the Plymouth Valiant — feel free to add yours here. Probably because it's so old, no one bothers to post complaints anymore.
The 1966 Plymouth Valiant has the most overall complaints, & we also rate 1966 as the worst model year ranked on several factors such as repair cost & average mileage when problems occur. The most-reported problem is also with the 1966 Valiant for engine oil light comes on.