34: Vortec Motor Defects
Vortec V8 engines are some of the most popular engines around, but the 5.3L has been the host of many problems. From a recall due to the cam lobe to common problems related to lifter failure and collapse, these engines are not as reliable as they once were. Type in “Vortec Tick” to Youtube and you’ll see a host of owners who have the same problems. These engines are starting to fail earlier on and part of this could be caused by a rush in production. GM is pushing these onto the market to keep up with demand and quality is starting to lack.
Being that the company is going to be focusing exclusively on trucks and crossovers, the need for quality is higher than ever. GM has been pushing the Vortec motor since the nineties and there have always been problems with the engine from time to time. The company just needs to take a step back and put much more effort into development.