Is it hard to start a GMC Sierra?
Is it hard to start a GMC Sierra? I have a 2011 GMC Sierra SLE 5.3 LC9. Recently it has been hard starting after it sits a while. The truck is stored inside at about 60 degrees. It seems to crank for about 6-7 seconds and then when it finally fires seems to stumble until it finds idle. It almost seems to be too rich. When did the GMC Sierra truck come out? The GMC Sierra is the fifth-most popular truck in the United States, with more than 230,000 trucks sold in 2019. General Motors introduced the GMC Sierra and...