I have a 2011 Silverado 1500 with a 6.2 V8 with 95k miles. When the temperature is below 45 outside my truck has issues starting. The starter is about a year old the battery is about a year old and I just replaced the starter fuse and relay. If it’s warm outside it starts and runs like a champ. Any suggestions ?

 

Welcome to the forum! More descriptive info please - what is "issues starting"? Does the starter turn slow when cold? Does it turn fine but motor take longer to catch??
The more detailed your description of your problem, the quicker fix you will get from all the smart folks (not me) here.

 

It literally acts like it does not want to crank. I turn the key and I just get a single clunk noise. And after a few attempts then it slowly builds up with a slow crank to a full start. Then there’s times where I turn the key and absolutely nothing happens.

 

Have the battery load tested and clean your cable grounds. Cold weather is great at finding dirty grounds! Even a year old battery & year old starter could be the culprit, but grounds first!

 

I will do that tomorrow and repost on any results good or bad