Over charging 91 D350 in England

75dually · Jan 20, 2015

Hey
Greetings from the UK
Just got my 1st Dodge truck 1991 D350 Cummins, only had it a couple of weeks.
I noticed today that over idle the lights were pulsing and a lot brighter than before,
then i noticed the battery was hissing, I put a multimeter on the battery and over idle
I have 19v, I can't see any regulator on the bulkhead so I presume the alternator is
computer controlled?? anything I need to check?

79jasper · Jan 20, 2015

Regulator could be built into the alternator.

Sent from my SM-T537R4 using Tapatalk

75dually · Jan 20, 2015

From searching on here i've not seen a Dodge Alternator with a built in regulator

79jasper · Jan 20, 2015

Okay depending on the date your truck was built, it could be on the firewall, or built into the computer.
You can bypass it if it's in the computer. As shown in post 8 in this link. http://www.cumminsforum.com/forum/8...tage-regulator-location.html#/forumsite/20661

Sent from my SM-T537R4 using Tapatalk

75dually · Jan 20, 2015

According to the vin decoders it's 1992 but according to the door jamb plate it 11-91 c not sure what the c is for
No regulator on the firewall so i'm guessing it's in the computer, I'll see if I can find an external regulator tomorrow,
parts not easy to find over here

79jasper · Jan 20, 2015

Then I bet it's in the computer.

Sent from my SM-T537R4 using Tapatalk

75dually · Jan 21, 2015

Well looks like some PO has installed an after market euro regulator to the inner fender,
earth was bad on this plus it was rattling loose on the screws, cleaned the earth and fastened
the reg to the body and my truck is not 14.8v

still has a slight pulsing thing though but at least it's
not cooking my battery any more

towcat · Jan 21, 2015

start simple. make sure your grounds and clean, DRY and tight.
if you can post a pic of the alternator.

75dually · Jan 28, 2015

Right finally got back on it today, put my digital volt meter on the battery and the volts are going 13v to 16v up and down, faster you rev the motor the faster it fluctuates, the PO seems to have picked up a key live from the grid heater relay, this is a bad connection i need to sort

You must be registered for see images attach

75dually · Jan 28, 2015

You must be registered for see images attach

dodgy key live

75dually · Jan 28, 2015

PO fitted this regulator

You must be registered for see images attach

Over charging 91 D350 in England

75dually

Registered User

79jasper

Chickenhawk

75dually

Registered User

79jasper

Chickenhawk

75dually

Registered User

79jasper

Chickenhawk

75dually

Registered User

towcat

Supporting Member

75dually

Registered User

75dually

Registered User

75dually

Registered User

Similar threads

Latest posts

Forum statistics

Members online

Share this page