
A man took his GMC to a dealership and says he was quoted $15,000 for a new engine and a transmission. When he took it for a second opinion, the original diagnosis stumped the mechanic. Here’s why.

A man took his GMC to a dealership and says he was quoted $15,000 for a new engine and a transmission. When he took it for a second opinion, the original diagnosis stumped the mechanic. Here’s why.