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Capacitor on alternator
- Thread starter Rrent
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Skinny
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I don't think that has anything to do with alternator function. I believe it's for electrical noise like what is also on the wiper motor.
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Skinny is correct.
The capacitor is there to suppress possible electrical noise or "hash" emanating from the alternator. The alternator will work with or without it.
The capacitors inline with the wiper motor wires are there for the same reason.
The capacitor is there to suppress possible electrical noise or "hash" emanating from the alternator. The alternator will work with or without it.
The capacitors inline with the wiper motor wires are there for the same reason.
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As time goes on, I've personally found those capacitors to cause more trouble than good. The horn cap failed, and the wiper caps were causing a slow wipe. I removed both of those and the horn/wipers resumed working correctly. I removed the cap off the alternator too. Given how advanced surveillance is these days, there's no need for these parts to remain on the truck. They already knew you were around when the glow plug relay clicked...
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Caps do dry out and go leaky. This will certainly cause issues of they are not good.
I had to replace the caps on my alternators. The hash emanating from them rendered the HF and up into the lower portions of the VHF spectrum useless.
New caps made a big difference but there was still one more item causing a lot of RF noise.
The low coolant module was making a lot of RF noise, I unplugged it and all the noise disappeared.
I had to replace the caps on my alternators. The hash emanating from them rendered the HF and up into the lower portions of the VHF spectrum useless.
New caps made a big difference but there was still one more item causing a lot of RF noise.
The low coolant module was making a lot of RF noise, I unplugged it and all the noise disappeared.
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My low coolant module is starting to act up these days now too. I think I'll unplug it the next time I'm in the truck. I've got a mechanical temp gauge.
Skinny
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That's weird, I removed the cap when rebuilding the alternator and was immediately intercepted by Russian spies...probably should have kept them on.
On a more serious note, my truck still has the caps on the wiper motor. Wonder if I should just remove them anyway at this point since I'm done with covert ops.
On a more serious note, my truck still has the caps on the wiper motor. Wonder if I should just remove them anyway at this point since I'm done with covert ops.