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Old 11-30-2008, 11:03 PM   #1
explorerhavok
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Default 94 Ranger cranks but won't start

I normally have an affliction for Explorers, I have had four in the last couple years, but decided to swap over to a Ranger as there is more that can be done with them. I bought a 94 Ranger XL with the 4.0 and a manual trans in it, bought it cheap since it won't start. My plan is to get it running and then swap in a rebuilt 4.0 I already have. So here is my dilema the engine cranks but won't fire, guy I bought it from replaced the battery and the starter, which didn't fix it. I noticed when I turn the key I can't hear the fuel pump running so I figure that is a possibility and I will test it when I get the truck somewhere I can work on it. Thing about the fuel pump is the guy I got it from said he ran a wire from the battery to the pump and it worked but still wouldn't start. So I am not sure if it is the pump or something else, possibly electrical. Also something else I noticed is that the check engine light doesn't come on at all when I turn the hey, I know in my explorer it comes on when I start the engine. Could this be the sign of another problem? Also I did some quick testing and I know I have power as far as the connector for the ignition coil pack. Any advice on possible problems or awhat to look for would be appreciated.
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Old 11-30-2008, 11:15 PM   #2
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Check the fuel pump shut off ( inertia) switch, may have been tripped.
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Old 12-01-2008, 12:15 AM   #3
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Checked the inertia switch, button is down. Is it possible the inertia switch is bad? One thing I had forgot, truck was running and just quit one day.
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Old 12-01-2008, 01:08 AM   #4
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Check associated relays,fuse.but it sounds like pump in tank is D.O.A
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Old 12-01-2008, 08:02 AM   #5
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Had the same problem, if the truck has a/c switch the a/c relay with the EEC relay and see if the check engine light works at Key on Engine off. If that relay isnt working your computer has no power & you will have no fuel pump & Spark.

These relays are in the engine compartment next to the battery > The Fuel pump relay, EEC relay & A/C relay are all the same. Just make sure you switch the A/C & EEC. If no A/C I would just go buy a new 1 they are not expensive
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Old 12-01-2008, 05:53 PM   #6
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Went at lunch and tried the swap for the EEC Relay, still no check engine light, no fuel pump noise, no spark. Begining to think the PCM is toast, what else can it be?
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Old 12-01-2008, 08:09 PM   #7
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Yep it is most likely your computer had the same problem in my 93 and after a week of messing around with it i found out i had no check engine light, injectors werent noiding and the fuel pump wouldnt turn on. I put a new computer in it and it fired right up. hope this helps
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Old 12-02-2008, 11:54 AM   #8
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id put i fuel pump in it... if no start then id check the injector pulses if they are good then check the crank sensor
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Old 12-02-2008, 02:20 PM   #9
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Pulled the computer and opened it up, got some burnt components so I am pretty sure that is the issue. Sending it out to be repaired. I'll update if it works or not.
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Old 12-02-2008, 03:15 PM   #10
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thats never good... itll buff out tho
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