Nissan Repair Questions? Ask a Mechanic for Answers ASAP
When your truck is cold the choke on the carburator closes to allow more fuel to get into the carburator and less air , when the truck stalls cold this sounds like the choke is not closing or stuck open, causing to stall from lack of fuel. once it warms up the choke is open does not need it, this is why it will run after it warms up, I would have the carburator looked at ,or overhauled to fix your problem. Thanks ROY!