Question about 1993 Ford Ranger SuperCab

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1993 Ford Ranger charging system problems

Alright I've bashed my head around for 2 days on this one. My ranger's volt gauge was fluctuating intermittently the other day. Finally by the end of the day the voltage was real low and the lights were all dim at night. Took the alternator in to be tested, they said it was bad. I put the new one on same thing still happening. I got a new belt thinking maybe it was slipping, still didnt fix the problem. I checked all wires in the engine compartment. Starter wires, solenoid wires, Power Distribution box fuses / wires, alternator wires, everything passed with nothing more than 0.1 ohms resistance. By this point I'm getting extremely frustrated. Inside the car I try banging my fist on the steering wheel, and sure enough the voltage comes up and it starts charging, only to stop again after about one minute. I try banging some more and after a while get it to start charging again, then it cuts off after a while again. I'm assuming its a loose wire / connection in the steering column. I do know my ignition switch is loose but this has never been a problem before and its been like that for years. Plus when I did a volt test at the alternator plug that leads from the ignition switch it always shows 12V when the key is "on".

Any suggestions?

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  • 2L8IW1N Jun 02, 2008

    Internal, the new one of course came with the alternator. I also had this new alternator tested and it checked out good.

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In order to answer your question i need to know if you have internal or external regulator for alternator

Posted on Jun 02, 2008

  • fernando arevalo Jun 02, 2008

    ok located the wire with ignition power and install a by pass from positive at batterie to the alternator ignition wire if this takes care of the problem then you have a bad ignition switch but if not try my replacing the alternator bulb at dash boar becasue thats the one trigering the alternator and if it works intermitant then alternator will do the same

  • fernando arevalo Jun 03, 2008

    have some one to watch teh volmeter at the ignition of alternator while you bang on steering if volmeter fluctuates then you have a problem from the steering switch to alternator i allready told you to aply starihgt power from batterie to alternator have you do that or by pass from ignition coil to alternator if ok then your ignition swich is not good

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