4.0 V6 This happens after I drive it and get it up to temperature. Then, when I shut the engine off and try to start it about 5 min. later, it won't. I've replaced the Egnition Coil, Plugs and Plug Wires. I've heard that maybe the fuel pump needs to be replaced but it wasn't a professional opinion. I don't want to spend the money and time trying to repair the truck again on something that may not be the problem. I need some kind of definite answer oon what is wrong. Help PLEASE!!
1994 Explorer won't start
Aug 19, 2004
4 Replies
This problem was talked here previously. The solution is to change the fuel pump relay. When it get hot it won't start. You can take a look in previous post in the forum about this issue. Hope this will work for you. Regards
Marc
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Tough call without some diagnosis. With the radio off, turn the key "on" & listen for the fuel pump hum. It should run 2-3 seconds & shut off. You may want to try swapping the fuel pump & heater motor relays in the under hood relay box. Worst case is you have no heater fan....
Pull a plug wire & check for spark while someone turns the key to "start". No spark means you need to check further. One possible problem is a bad crankshaft position sensor that comes open when it heat soaks from a shut-down engine. Again, without diagnostics it a shot in the dark.
Thanks for the responses. It was the relay switch!!!!! When I tapped the switch, the fuel pump would kick on. Now that it's replaced it works fine. Thanks a lot!
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