Replaced the fuel pump on Dodge Intrepid 2001, 2.7L engine. Before dropping the fuel tank, drove it until about 1/8 full, so that it would be lighter. Installed the new fuel pump, strapped the tank back on, but when we went to fire it up, the engine wouldn't start.
After trying a number of things, we finally decided to pop off the vinyl quick-connect that connects to the steel fuel line to see if any fuel would pour out, but when we primped the pump we only saw a few drops, certainly not enough to start an engine. We added about 2.5 gallons to the tank, and it almost started. We added about 3.5 more gallons, and boom, it started right up.
Friend said the pump was vapor locked, but I thought that vapor locking had more to do with fuel boiling. Tried searching around the internet for an explanation, but didn't really find one. So, I ended up here. Anyone have any ideas why this happened? Thanks.