Chevrolet Repair: 96 blazer having trouble starting i cold weather, coolant temp, cold weather

Question
our blazer starts fine when weather is 0 or up but when it gets below -5 degrees it won't start, we took it in for an oil change and put in a new battery, when i went to start this morning it was starting to turn over but then it wouldn't even click to turn over, what can i do to solve this problem, i love my truck and just want it too start when it is cold.

Answer
The coolant temp sensor tells the computer how much fuel to inject when cold.  The colder it is the more fuel needs to be injected.  Just like a carburetor with a choke.  Try cycling the key on and off to prime the fuel rail a bit.  A weak fuel pump could cause this too.

Wayne