Ranger wont start
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Freshman User
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From: Everett Pa
Ranger wont start
I have a 1987 ranger stx 4x4 2.9 v6. It was running great untill not to long ago i parked it and then the next day it wouldnt start. It gets good spark but no fuel. I have replaced the fuel pump in the tank the low pressure one, the fuel pump relay, the eec relay, and i put a new ignition module in it today and that still didnt help. I have also tried another computer but that dont help either. If you know anything that could help me out i would be very thankful 
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Myron
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Postmaster
Joined: Oct 2003
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From: SoCal
I agree, check the inertia switch.
Then remove the connector from the switch & connect your voltmeter to the orange/light blue. Now turn the key to run.
If you see 12 volts for 2 seconds the problem is in the wiring to the fuel pump.
No 12 volts, the problem is somewhere between the EEC relay or fuse link & the inertia switch.
BTW, i would'nt throw away those old parts.
Edit, see my posts in the thread "1986 Ranger wont start"
If your not sure where to ground your voltmeter, just run a wire from the negative post on the battery into the cab.
Then remove the connector from the switch & connect your voltmeter to the orange/light blue. Now turn the key to run.
If you see 12 volts for 2 seconds the problem is in the wiring to the fuel pump.
No 12 volts, the problem is somewhere between the EEC relay or fuse link & the inertia switch.
BTW, i would'nt throw away those old parts.
Edit, see my posts in the thread "1986 Ranger wont start"
If your not sure where to ground your voltmeter, just run a wire from the negative post on the battery into the cab.
Last edited by 87 XLT; Jul 17, 2005 at 01:06 PM.
Thread Starter
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Freshman User
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From: Everett Pa
Ok thanks ill have to try that out. I did try to jump the inertia switch but it still didnt kick the pump on. Btw i didnt throw away the old parts i still have them here in the boxes that the new ones came in.
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Freshman User
Joined: Jul 2005
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From: Everett Pa
when i turn the switch on i get current out to the relay and around but i dont get anything to the inertia switch. i checked all the fuseable links or what ever they are called and there all working good.
Postmaster
Joined: Oct 2003
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From: SoCal
If you have 12 volts on the orange/light blue wire at the pump relay but not at the inertia switch, you need to find the break in the wire or run a new wire.
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Freshman User
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From: Everett Pa
what wires should i check to see if there getting power back to the pump in the tank.. there is alot of wires that run right back to the fuel pump.
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Postmaster
Joined: Oct 2003
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From: SoCal
You cant fix ANYTHING electrical on your truck until you understand how the circuit works.
Doesnt matter if it's the fuel pump circuit or power windows or cruise control ETC ETC.
What you need is a GOOO set of wiring diagrams
The Ford "electrical & vacuum troubleshooting manual" will tell you how to fix EVERY circuit on your truck. And it will only cost you around 20 bucks at www.helminc.com I suggest that you get one of these and then fix your truck.
These wiring diagrams are very simple to understand. MUCH better than what you will find in Haynes or Chiltons.
Doesnt matter if it's the fuel pump circuit or power windows or cruise control ETC ETC.
What you need is a GOOO set of wiring diagrams
The Ford "electrical & vacuum troubleshooting manual" will tell you how to fix EVERY circuit on your truck. And it will only cost you around 20 bucks at www.helminc.com I suggest that you get one of these and then fix your truck.
These wiring diagrams are very simple to understand. MUCH better than what you will find in Haynes or Chiltons.
Thread Starter
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Freshman User
Joined: Jul 2005
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From: Everett Pa
hello i have a 1987 ford ranger 2.9 v6 4x4. when i turn the switch on the fuel pump wont kick on. i have replaced the EEC relay, fuel pump relay, fuel pump, ignition switch no the cylinder and keys the other part, the ignition module, and switched computers and tried that still nothing. i also tried by passing the fuel shut off safety switch but that didn't help either. i also replaced the alternator diode that someone said might be wrong with it but that also hasn't helped. i checked and i have power to the pump. sorry that its been so long but i was working away and havent had much time but im getting laid off this week so i should have time to work on it.
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Freshman User
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From: Everett Pa
no i havent got it resolved yet i have replaced alot of stuff i think it might be the cylinder and key part thats bad cause when ever i wiggle the switch i noticed the pump will like kick on and off. if you find anything out please let me know and if you need any suggestions on anything let me know cause i might be able to help you out i have replaced about everything.
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Freshman User
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From: Everett Pa
i have another question on the eec relay or maybe its the fuel pump relay im not sure at the moment there is a black wire with a geen line on it i was wondering if you could look on your truck and see where it goes to. thanks it runs through a connector.
Elder User
Joined: Jul 2003
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From: north carolina
there is an ingitons module in the stering colum take off the plastice covers and make sure its plugged all the way, or the module it self might be bad. (when you turn the key it moves a shaft in the colum that moves a switch in the module, the module is cheap and can be pick up at any parts store, it is held in by 2 keyed torx screws, you will need the proper size torx bit that is hollow to remove the screws.