Smothers65
New member
I have a 1997 Chevy 1500 Silverado 4x4 with a 5.7 350 vortec. I bought the truck when it was not running and just had the motor swapped out and have driven it for just over 100 miles. I can't keep any antifreeze in it though. It's not burning or leaking any, it's all going out the reservoir overflow. The air temp sensor that plugs into the air filter box is broken and I haven't had time to get a new one to put on it yet. Would this have anything to do with it? If not, any ideas?