PDA

View Full Version : voltage regulator


Chopstick
02-04-2014, 08:30 PM
I cant find online a wiring diagram to fix my voltage regulator for my 95 Cherokee, does anyone know how to change it out?

or does anyone know a way I could do a external regulator?

my alt puts out 135amps

Tinker
02-04-2014, 10:20 PM
Computer controlled charging ...... no voltage regulator! Is it a 135 amp alt? What's the problem?

Chopstick
02-04-2014, 10:41 PM
I realize that! Thats why is said "change it out" not where do i find it!

Yes its 135, :dontknow:

Its charging at 15volts and getting worse at times. U can fix the ecu but need a diagram. New ecu is 4-5days away an $300. Most external voltage regulators can only handle 80-85amps, just wondering if theres higher rated ones out there an how u could use it to bypass the stock regulator junk.

85chevy
02-05-2014, 12:26 AM
Computer controlled charging ...... no voltage regulator! Is it a 135 amp alt? What's the problem?
All the voltage regulator does is turn the stator on and off so that ur not generating 70 volts..... Computer does the same thing turns it on and off so it could be generating 15 volts because one bad connection is dropping the voltage .6-.8 volts so its allowing it to generate more voltage

Happypants
02-05-2014, 10:10 AM
What about a regulator out of a Durango or Dakota? They run the same high amp alternators, just a thought, Mabey? When my voltage regulator went it full fielded the alt and put out 75 amps straight to the battery lol, never seen a soleniod melt off a fender before

Tinker
02-05-2014, 10:35 AM
Can't say I have heard of what you are trying to do......I'd ask the Jeep god (Nutty) if I was you ;)

Apathy
02-05-2014, 10:39 AM
what is the problem?
your alternator puts out 135 amps. normal.
your alternator puts out 15 bolts. normal. (actully 14.8 is normal)

I ran my alternator for 3 years at 18 volts.

135 amps is not being put out either, only when you demand 135 amps. thats the current draw.

Chopstick
02-05-2014, 01:08 PM
All the voltage regulator does is turn the stator on and off so that ur not generating 70 volts..... Computer does the same thing turns it on and off so it could be generating 15 volts because one bad connection is dropping the voltage .6-.8 volts so its allowing it to generate more voltage

Ok ill check my wires for ohm draw

Chopstick
02-06-2014, 09:00 AM
what is the problem?
your alternator puts out 135 amps. normal.
your alternator puts out 15 bolts. normal. (actully 14.8 is normal)

I ran my alternator for 3 years at 18 volts.

135 amps is not being put out either, only when you demand 135 amps. thats the current draw.

135 is normal i just put the rating out there
15v isnt normal especially when u have gel batteries

Apathy
02-06-2014, 09:05 AM
135 is normal i just put the rating out there
15v isnt normal especially when u have gel batteries
so, you have something that will measure exactly.

because 14.8 is about normal.

Reeseman
02-06-2014, 02:49 PM
The regulator should be part on the alternator.

85chevy
02-06-2014, 06:56 PM
The regulator should be part on the alternator.
Nope all fancy and computerized now on lots of stuff

Chopstick
02-07-2014, 12:29 AM
The regulator should be part on the alternator.

the newer cherokars are in the ecu, which are gay... the older renix ones I believe are on the alternator

Happypants
02-07-2014, 07:18 AM
No luck yet choppy?

Tinker
02-07-2014, 09:37 AM
Are you trusting the gauge or have you measured with a volt/ohm reader?

vajayjay
02-07-2014, 10:10 AM
My gauge always read betwwen 16 and pinned for years, never had a problem,

Well electrically anyway

atoyot
02-07-2014, 12:04 PM
must be a jeep thing.....:D

85chevy
02-07-2014, 07:19 PM
Are you trusting the gauge or have you measured with a volt/ohm reader?
I already told him that yesterday. And yes 14.8 volts is fine but if ur running a AGM battery u will boil it and kill the battery because u can't top up what boils out

Apathy
02-08-2014, 07:35 AM
I already told him that yesterday. And yes 14.8 volts is fine but if ur running a AGM battery u will boil it and kill the battery because u can't top up what boils out


I run agm batteries. And it's not an issue.

Must be a jeep thing.

Apathy
02-08-2014, 07:35 AM
I already told him that yesterday. And yes 14.8 volts is fine but if ur running a AGM battery u will boil it and kill the battery because u can't top up what boils out


I run agm batteries. And it's not an issue.

Must be a jeep thing.

85chevy
02-08-2014, 12:59 PM
Yea optima says 13.8 to 15 volts now for alternator

epic3
02-10-2014, 12:25 AM
Its a common problem with any chrysler vehicle from the late 80's and up. I've dealt with this on a few occasions now and to fix it I just take the alternator into a rebuilder (I use Brighouse in Richmond) and have them convert it to internally regulated. Takes an hour and about $70.

Tinker
02-10-2014, 12:39 AM
Well shit Phil, I done learned sumting today.

epic3
02-10-2014, 01:35 PM
glad I could ejumacate you

Chopstick
02-10-2014, 08:12 PM
Thanks phil!

epic3
02-11-2014, 12:03 AM
Ohh if doing this mod you dont plug the regulator wire back into the alt. You just leave it disconnected

Chopstick
02-11-2014, 11:15 AM
Ya that would be stupid if ya did

epic3
02-11-2014, 03:27 PM
some people are stupid lol