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Automotive electricity

Ford Ranger lights blink.

Jesus Mtecnico
hace 6 años
hace 6 años
Good afternoon everyone sent a cordial greeting, I admire the whole forum, I hope you can guide me. I have a 1994 Ford Ranger truck, 4 cylinders 8 spark plugs, of which they come with two coils. The problem I have is that the lights are blinking, they don't go out completely, they only vary in intensity to the rhythm of the engine. All exterior and interior lights do this, the battery needle on the same board rises and falls too much and at times the battery warning light turns on. When this happens as the car pulls. I took him with an electric and he told me that it is an unquestionable symptom of Alternator or battery, well I bought the battery and he changed the regulator to me alternatively, as well as the stator or rotor and until it ends but it remained the same. Now I bought the ignition module because it had already damaged me, the two coils, alternator, wires and spark plugs, all new but the fault continues. Do this more when I go up or accelerate a lot. I also checked the alternator and battery cables and apparently it is fine however, I would like to hear your opinion or suggestion if you have had a similar experience and could guide me, thank you very much in advance. Greetings, be well.
Mangel HH
Mangel HH
19.786
hace 6 años
hace 6 años
Hello Jesus. Verify the earth to the body, a very simple observation such as this can be the cause, poor anchoring or rust in its terminal. If the condition continues for the electrician to check the alternator values again, it would not be the first time a regulator fails again. Salu2.
Jesus Mtecnico
hace 6 años

How about Mangel HH, thanks for your kind response, I already checked the battery ground wires, I have not checked the others, the alternator is new just one day and the fault was made after putting it. It happened to me to tell you that if I disconnect the alternator and start it with the pure battery it works very well, even lights and engine very well while the charge lasts, but when connecting the alternator the fault returns, I tried one that I got used later with which They fixed me but this alternator is new. I think that maybe you see one of the many harness cables that is short.

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Mangel HH
Mangel HH
19.786
hace 6 años

Was the alternator voltage checked? The earth of the carcass of this is correct in its anchor base ?. Is the band tense? If the alternator is new with its corresponding regulator, it is a question of looking at the connections and wiring side.

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Jesus Mtecnico
hace 6 años

Thanks Mangel HH. Sorry for the delay. Check with multimeter and the alternator is fine, the battery too, but looking between the harness I found two pairs of melted wire, they were of horn and cleaners that although apparently they were not completely crossed maybe if it affected. I have changed some fuses including the alternator and the problem decreased a lot. I will continue to check the main lights and relay lights and the land you mentioned to me hopefully that is it.

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Jesus Mtecnico
hace 6 años
hace 6 años
Thanks, I changed one of the 3 wires that come out of the alternator, the thinnest one that reached the rifle, because I noticed that that fuse did not blow, but the plastic melted, without the fuse the truck was still running but it took a long time to load or It did not charge, nor did it end up discharging the battery without the fuse but if the lights stopped blinking. The function of that fuse is not printed, what I did was to derive two wires of a larger caliber and I put a fuse holder separately. Until today everything is going well, thanks to all greetings.
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