Hello, 01 Taurus 3.0 will start just fine in the morning and drives great but once it gets warmed up it won't start after you turn it off. It still cranks but will not start until it sits for an hour or so. The check engine light is not on and I have even scanned for codes and nothing. I have replaced the crankshaft position sensor and the camshaft position sensor but neither one fixed the problem. Any ideas?