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Old 08-06-2009, 16:27   #1 (permalink)
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2003 Ford Ranger Problem Starting when Weather is HOT!

I've been having a problem this summer when it is hot outside.... When I drive my 3.0L Ranger around town and stop somewhere and let it sit for 15-20 minutes it won't start. I have to let it sit for 45-60 minutes and cool down. It sounds like a fuel problem. The first time I start it after sitting it will rumble like it's getting fuel intermittently. Then after that it will just crank and not start. But if I let it sit there for a bit it will start and run just fine.

I've tried putting higher octane gas and fuel injector cleaner in it.

I want to try and get it fixed, but I know the mechanics will just start Guessing and replacing and it will cost me mucho bucks.

Any ideas? It's almost like the old Vapor Lock problems of times past, but from what I've read the newer engines don't vapor lock.

Steve
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Old 08-27-2009, 00:43   #2 (permalink)
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Re: 2003 Ford Ranger Problem Starting when Weather is HOT!

One possibility-my 86 had a problem with a weak fuel pump that would stop working during hot weather and the truck would stall. It would sit for 30 minutes or so and then run fine. This only happened when it was hot (90 degrees +). The fuel pump located in the tank relies on the fuel for cooling itself. I replaced the pump and the problem stopped. I don't know if this is your problem or not, but this is a place to start.
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