hello
i just purchased a 2500 silverado 5.7, it runs rough when stopped at traffic signals and pings( rattling engine sounds) when accerating. what should i check? also it only get 10 mpg is that average for this model truck?
thanks for any suggestions
larry
i just purchased a 2500 silverado 5.7, it runs rough when stopped at traffic signals and pings( rattling engine sounds) when accerating. what should i check? also it only get 10 mpg is that average for this model truck?
thanks for any suggestions
larry