Had an incident this summer that was a real surprise. We were driving our 2000 Trek in Washington State on a rather steep pass with the outside temperatures in the low 100s. After about 40 minutes of slow continuous climbing, the engine quit! No engine temperature increase (based on gauges), the temp would increase, fan kick in and the temp would drop. But no excessive engine temp.
After sitting for about 90 minutes, the engine started and we completed the climb over the pass and down into the valley. Following morning I had a shop replace the fuel filter and check the engine codes with only a voltage drop being indicated. Fuel filter did not appear to be plugged. Engine has run fine every since, including pulling some good passes while pulling our Toad.
Particulars: 2000 Workhorse P32 chassis,
7.4 L Vortec gas engine,
32,000 miles,
lightly loaded, ie: fuel, water, holding tanks 1/2 full.
Fuel pump in fuel tank... sure seemed to be vaporlock but this is not supposed to occur with pressurized fuel lines.
add this to your stats wherever it might fit.