Hello, I recently did a tappet cover gasket and thermostat gasket job on my 94 k1500. I had to disconnect the alternator an some ac lines in order to get the covers off. After the replacement and assemble, my truck seemed to be running fine. A few days later, it started to give me trouble when starting i.e. sounds like it is not getting enough air making it feel like its going to stall. The first start of the day would be rough, but the rest would be fine. It would turn over like it had no problems. I drove my daily driver for a day and went to drive my truck and it was completely dead, No lights, nothing. So I charged it up, and my truck would fire. It cranks, but just doesn't run. It feels like its going to start but it doesn't. I brought the battery in to get fully charged as well as had my alternator checked and it passed all of the tests. Anybody have any ideas?