not charging right
#1
03-25-2009, 12:23 AM
not charging right
ok guys ive put a total of 60 miles on my truck for break in. the problem im having is it aint charging woth a damn. two new interstate batteries and new ground cables and power between cables. the truck made 14 volts before disasembling with higher rpms now it drops below the first dash mark, any ideas
#2
03-25-2009, 12:29 AM
Not sure on the 94 but on my 98 the voltage regulation comes from the PCM.
How many volts are you getting at the battery terminals??
How many volts are you getting at the battery terminals??
#3
03-25-2009, 12:31 AM
dont know havent had time to hit it with a multimeter, hopefully in the morning i was just wondering if anyne had any quick thoughts
#4
03-25-2009, 12:39 AM
Im not sure if there is an external voltage regulator on a 94??? Whitmore might know.....
Could be the alternator.....
Could be the alternator.....
#5
03-25-2009, 12:44 AM
is the external regulator the little black box on the back of the alternator?, i know the alternator was doding 14 voltes at higher rpm before taredown, but it aint even close now
#6
03-25-2009, 02:14 AM
Not sure on this but it is worth a shot, I had the same problem on my 79 gmc after I put it back together and no charge, it ended up being the signal wire coming from the battery to tell the alternator to charge, good luck and hope you get it fixed.
#7
03-25-2009, 11:10 PM
ok guys i made a jumper wire from the rear of the alterbnator to the battery and that was the problem, its getting the full 14+ volts now. i just need to figure out whick wire aint conected. I COUNT MY TRUCK ON FIRE
dont use 18 guage wire as a jumper when doing this proceduere it ends up badly
---AutoMerged DoublePost---
ok i traced the wires tomight and there was a little fuse in the fuse block that is shot i think that might be the problem
dont use 18 guage wire as a jumper when doing this proceduere it ends up badly---AutoMerged DoublePost---
ok i traced the wires tomight and there was a little fuse in the fuse block that is shot i think that might be the problem
Last edited by 94cummins12v; 03-25-2009 at 11:10 PM. Reason: Automerged Doublepost
#9
03-26-2009, 12:22 AM
its all wraped in loom, everything looks ok, it may be a few things, touching wires together, grounding out that stud on the oil filter housing when tightening the bolts, if it pops it again then i ll start replacing more wires, i still cant belive i cought the old girl on fire though
