Q:My2012 Chevrolet Silverado1500 extended cab is my third Silverado; I've had two gas engines and one diesel. This truck is gas, the 5.3-liter engine with active cylinder management. I exclusively use ...

Question: I have a 1999 GMC Sierra 4x4 with a 5.3-liter automatic and 92,000 miles on it. At times when I start it, hot or cold, it acts as if it's not running on all cylinders for a minute or two.

It's a widely known fact that the 330 CID (5.4-liter) version of the Triton V8 wasn't a praised engine because… reasons. Too many reasons, to be frank. Just recently Ford announced that some vehicles ...