When does the truck stall, after it is fully warmed up, does it restart right away or after 30 seconds, stall at low road speeds or highway speeds? How many miles on the turck?
My first guess is you have an FSD that is going south. If the truck has to be fully warmed up, will not restart unless you wait 30+ seconds and is more apt to stall at lower speeds I would remove the FSD wire from the unit and remotely mount your new one outside the engine comparetment. Bill Heath http://www.heathdiesel.com/ has a plate mounted unit that I installed inside my bumper, look at my web page for details.
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