In the recent cold snap in Wisconsin, -25 degrees my truck won't start. battery died and wouldn't allow a jump start. So I replaced the battery and the truck won't fire. Sprayed starting fluid and that didn't work either. Engine turns over but won't fire. any help would be appreciated. Thanks in advance.

 

*Moved to 2nd gen tech*

 

If it doesn't start with starting fluid, (not a good idea, use carb spray instead) it's time to check for spark at each plug while cranking. Needs to be a blue, not orange, spark, and should jump a half inch gap to ground.