Hello group.
My friend's 1994 Ford Ranger doesn't start sometimes when it's warm. After driving for any amount of time, the engine will turn, but it never starts. It will eventually start once the engine cools down. She has had no problems at all with cold starts. The warm start is only intermittent, though.
Mechanics have shown their lack of experience by blowing hundreds of dollars in repairs that have solved nothing. They're helpless because it never fails by the time a mechanic gets involved.
I already have a solution in mind, but I am looking here for additional insights from your collective experiences.
I plan on replacing the coolant temperature sensor. This sensor could be giving the fuel injector a cold start condition when the engine is actually warm. That would cause the fuel mixture to be wrong, and subsequently the engine won't start.
Does anyone have any other ideas?
Thank you so much for your input.