Best replacement alternator?
I've got an alternator that was originally purchased from Hervey many years ago. I've had three of them installed. I have a ground bus installed. And yet, when my engine is idling, none of these alternators have been able to maintain a nice output if I have the lights on or the A/C on. They all drop voltage, my lights dim, air motor slows down, until I push the accelerator to give me 1,000 RPMs then the needle bounces up and all is great. I have DPI fans, and even have my ECU programmed to bump the RPM up by 100 (850+- Idle RPM) when the A/C turns on yet I still have this issue. With no accessories turned on, my engine idles at 750+- and the needle is pretty steady with a good voltage.
It's been an annoyance from the beginning of ownership that I'd love to finally get resolved.
Can anyone tell me their experiences with other alternators? DMCH? Saturn alternator?
Thanks in advance
Best replacement alternator?
Add the Red (sense)wire shown here, that is what Dave did.
https://uploads.tapatalk-cdn.com/201...5ae1d5cee7.jpg
You can get a replacement connector loaded with all the wires like the one shown in the photo. Remove the 2 wires tied in the knot. They are not needed.
Also make sure the belt is tightened properly.
Best replacement alternator?
Quote:
Originally Posted by
NckT
This is interesting, is this on the dmch alternator?
The DMCH (CS130) is provided with same connector with only a single Wire (L) Since it technically does not need the (S) Red wire. However, when the key is turned to the Run position with engine off, the battery light will flash/pulse. Dave M. Added the Red sense wire to his DMCH alternator and the flash/ pulsing light stopped. Just a steady ON now.
As I mentioned earlier, too add the Red wire, you need to buy another connector pigtail assembly from your local AP store.