I've had an intermittent tach now for a while, sometimes it works, sometimes it doesn't. Right now it's jumping from the bottom up to like 800 every two seconds, gen and other lights come on for a split second and repeat. Not charging the batteries because of it, replaced the wiring harness at the end of the ESS because I'd determined it to be faulty, but has turned out not to be the problem.
My main question is can I jump two of the harness wires together to fool the alternator into charging? Gonna order a new one soon here. Gap is correct, just recently reset it. Harm balancer is failing (rubber pushing out of front and back) so I'm thinking that could be the issue?
Don't know, but need my batteries to charge badly. Thank you.
When I installed one I used the constant hot wire to the fuel shutoff solenoid.
But before you head to the parts store, inspect the wire harness very carefully. I had the same symptoms and found a tiny hole in the insulation where the wire was grounding to the block.
I think that's probably what is happening (grounding out). So the ext. voltage regulator makes the alternator charging independent of the ESS/CPS sensor signal? Been meaning to do the external regulator for a while, now it's top of the list. Thank you.
If your damper is coming apart that could be a possibility also, although I can't recall anyone posting something like that. I'm guessing here, but perhaps it isn't maintaining a good clearance. Have your measured it on several different points of rotation?
I haven't yet. It seems that I can see some wobble in it when I look at it while running, I can't tell if I'm just wanting to see it and seeing it, or if it's actually happening. It needs replacing either way, but I'm not jumping out of my skin to drop $500 right now on a new one.
I'm gonna have to pull the sensor out ASAP and check all the wiring, and probably do the ext. reg. too while my nose is buried in there...
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