Report "Starting Have a 98 Discovery II. Get in it in the morning and it cranks a little to start. After running it and getting it warmed up, cut it off and leave it for 15-30 minutes and it won't start. Have to hold pedal to floor to get it going. And sometime that doesn't work. After it sits for hours and cools down, then it starts. What would be causing this problem? Could it be a throttle sensor?"