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#2407334 - 11/22/17 10:17 AM Fixed! Over Charging Problem 68 Dodge Truck
wally426ci Offline
master

Registered: 07/26/07
Posts: 2514
Loc: Maryland
Ok, I've been reading heavily everywhere to diagnose this.

Truck cranks forever & sputters when letting off the key. For the last 6 months it was starting often when letting off the key. I've read about voltage drop through firewall plug and bad ignition switches. I've improved the problem by either replacing or fiddling with ECU harness (converted to Mopar electronic ignition). That fix doesn't last long and it happens again.

I have a Volt meter in place of AMP gauge inside the truck and it is now reading at 10- while idling and getting close to 12 with rev. Previously, it was 11.5 @ idle and almost 14 with rev.

I know there are a lot of variables, but is there a diagram somewhere that shows me acceptable voltage readings to the corresponding point under the hood? I know there is expected drop for each component but trying to figure out what readings I "should" be getting.....

Thank you in advance!


Edited by wally426ci (12/16/17 02:12 PM)

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#2407346 - 11/22/17 10:43 AM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
Supercuda Offline
I Live Here

Registered: 09/04/07
Posts: 13071
In order to know your voltage drop you have to know what is coming out of hte alternator.

10V at idle with 12V revved up is BAD.

11.5v at idle with 14 revved is also bad.

Since we have no idea where you voltmeter is actually tied into the system it's hard to say what it's reading. If you simply bolted the two ammeter connections together and used that point as the freed for the voltmeter then you should be reading alternator out put and if it's that low you have serious issues.

We may as well start at the beginning ...

What is the reading at the battery positive - (use engine block for ground)

engine off -
engine at idle -
engine at 2500 rpm -

What is the reading at the alternator stud - (use engine block for ground)

engine off -
engine at idle -
engine at 2500 rpm -

What is the reading at the coil positive - (use engine block for ground)

engine off -
engine at idle -
engine at 2500 rpm -

Once we have these we can go from there

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#2407347 - 11/22/17 10:43 AM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
469runner Offline
super stock

Registered: 01/07/04
Posts: 1075
Loc: Virginia
Check your Ballast resister.

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#2407348 - 11/22/17 10:44 AM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
Andrewh Offline
master

Registered: 02/17/03
Posts: 7734
There really isn't an acceptible amount. Variances of .1 or so are expected.
But it sounds like you aren't charging at all.

It also sounds like you have done some modifications so a generic 68 diagram might not help.

The key is voltage based on the ground.
That is to say, where you are tapping the ground for will affect the voltage you see at whatever line you are checking.
So it matters what the ground is for the item that needs to get the voltage.

So if I test the voltage reg for the charging system, I touch the sensing line(which is exposed on a factory 68 but not on the 71 and up) for the positive and the case of the voltage reg for the ground.

IF the case is not properly grounded the voltage will differ if I used the battery for ground instead.
Both of the actual postive voltage provided and the ground to the voltage reg will change what the voltage reg shows.

All of these readings should be compared to the battery directly using the battery pos and neg posts.

Also be careful on using the bolt or screw holding a wire in place instead of the actual wire as the touch point, as this too can give you a false reading depending on how good the connector is on that wire.

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#2407349 - 11/22/17 10:44 AM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: 469runner]
Supercuda Offline
I Live Here

Registered: 09/04/07
Posts: 13071
Originally Posted By 469runner
Check your Ballast resister.


Ignore this.

The ballast resistor will NOT have any affect on system voltage, which is very low.

Nor is it used in START. It is bypassed with the key in START and the fact that it will sometimes start when the key is released shows it is good.

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#2407470 - 11/22/17 02:41 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
None2Slow Offline
mopar

Registered: 02/27/07
Posts: 598
Loc: Nampa, ID
What about the ignition switch? You could have bad or dirty contacts in there that are not allowing you to get a good connection when starting.

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#2407485 - 11/22/17 02:59 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
wally426ci Offline
master

Registered: 07/26/07
Posts: 2514
Loc: Maryland
Thanks ya'll! I will report back.

I did a clean Madd rewire all the way to gauges so solid wire where amp was. Voltmeter feeding from full volt side of cluster

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#2407516 - 11/22/17 04:04 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
RapidRobert Online   content
Circle Track

Registered: 11/20/03
Posts: 33622
Loc: Lincoln Nebraska
Quote:
Truck cranks forever & sputters when letting off the key. I've improved the problem by either replacing or fiddling with ECU harness (converted to Mopar electronic ignition).
4 pin orange box I am assuming. I would jump 12V from the battery positive post to the blue yellow ECU terminal and to the coil positive primary terminal & seperately (on the ground side) from the ECU base to ground then crank it & see if it starts several times in a row & only let it run for several seconds if/when it does start to confirm or elim the coil/ECU are good tho they can be OK when cold then act up when hot but you did say this was an initial in the morning starting problem. then as said check voltage drops at the coil/ECU when cranking OR just start cleaning ALL terminals/connections especially the bulkhead & ign sw.
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#2407699 - 11/22/17 11:25 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
wally426ci Offline
master

Registered: 07/26/07
Posts: 2514
Loc: Maryland
Thanks Robert - hoping you would chime in to reason me through another issue. I'll get you a plane ticket one of these days.

Battery was 12.5 across terminals. I got 11.85 tops at the positive alternator stud but I am idling super low?

I did replace the ignition switch with new for kicks and it started easier twice in a row. Voltage gauge inside still reading low.

I'll get some solid readings tomorrow and report back.

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#2407700 - 11/22/17 11:36 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
RapidRobert Online   content
Circle Track

Registered: 11/20/03
Posts: 33622
Loc: Lincoln Nebraska
Thank you for the kind words & I could use a vacation but the thought of the airport delays would probably make me want to stay put. for the charging rate I would confirm that the battery is full charged by slo charging it with a charger to full charged then put it on a fast idle & see what you get at the alt & at the batt terminals. I'm wondering if this is a charging rate or a voltage drop (connections/terminals) or a part (coil/ECU/switch) issue. The battery could be sulphated (least likely) but a possible potential. We're getting there.
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#2407705 - 11/22/17 11:52 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: RapidRobert]
Pacnorthcuda Offline
I Live Here

Registered: 11/19/07
Posts: 18987
Loc: Kirkland, Washington
Originally Posted By RapidRobert
Quote:
Truck cranks forever & sputters when letting off the key. I've improved the problem by either replacing or fiddling with ECU harness (converted to Mopar electronic ignition).
4 pin orange box I am assuming. I would jump 12V from the battery positive post to the blue yellow ECU terminal and to the coil positive primary terminal & seperately (on the ground side) from the ECU base to ground then crank it & see if it starts several times in a row & only let it run for several seconds if/when it does start to confirm or elim the coil/ECU are good tho they can be OK when cold then act up when hot but you did say this was an initial in the morning starting problem. then as said check voltage drops at the coil/ECU when cranking OR just start cleaning ALL terminals/connections especially the bulkhead & ign sw.


Wally,
As FastBob states above, check your bulkhead connections. Your comment "sputters when letting of the key" is a classic indicator that the STARTING circuit to the ignition has failed. Not uncommon.

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#2407829 - 11/23/17 10:38 AM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
dvw Offline
master

Registered: 03/16/06
Posts: 6947
Loc: MI, usa
If It wont fire until the key is released the blue/yellow circuit to the ECU is dead during crank. Where? It depends if how it was wired when installed. Where was the wire attached to the ignition on circuit? Be aware that Mopar has 2 ignition circuits. Ignition 1, is hot in run but not crank (I believe red on your truck). Ignition 2 is hot in crank, but not run (I believe pink on your truck). The best way to find voltage drop? Connect a voltmeter hot to hot (positive side drop) or ground to ground (negative side drop). In your case battery positive post to the Blue/yellow wire. Crank the engine. By all rights the voltmeter should read zero. It won't. What ever reading you see is how much voltage is lost between the circuit testing point and the battery positive post. Don't be surprised to see readings of .5-1.0 volts. More than that is an issue. Start at the battery terminal and work your way down the the circuit. Do this test while the circuit is loaded. Such as while cranking, while running or with what ever component you want to test is switched on.
Doug

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#2408718 - 11/25/17 01:42 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
wally426ci Offline
master

Registered: 07/26/07
Posts: 2514
Loc: Maryland
Ok report #1

Battery fully charged

Voltage

Batt positive
engine off 12.68
650 rpm idle 12.26
2500 rpm 15.5

Alt stud
Engine off 12.67
650 idle 12.25
2500 rpm 15.5

Coil positive
Engine off 0.03
650 idle 10.3
2500 rpm 11.6

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#2408725 - 11/25/17 02:07 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
Andrewh Offline
master

Registered: 02/17/03
Posts: 7734
that 15.5 is too high.
what did your voltage reg read at the sensing line?

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#2408735 - 11/25/17 02:42 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
Supercuda Offline
I Live Here

Registered: 09/04/07
Posts: 13071
As Andrew said, 15.5 is probably too high, your idle is too low. Your coil voltages look ok and where you have checked I do not see a voltage drop issue.

I would say voltage drop to the voltage regulator on the sense side needs looked at, usually it's a blue wire but it is the switched 12V feed to the VR. Measure that to engine block and it should be the same as the battery + terminal or alternator output stud voltages, if not you have an issue if so it's probably the regulator.

In 68 you should still have the single field terminal alternator with the mechanical regulator system, unless it has been changed.

If you are still running the mechanical voltage regulator instead of the later electronic version of it (not to be confused with the 70 and up regulator) you can adjust turn on and turn off voltages. To tell if it's the mechanical regulator look at the bottom, if it has a couple wire wound resistors it's the mechanical one. The FSM has adjusting procedures in it.

No truck FSM's, but the 68/69 pass car ones have the relevant info in them

http://www.mymopar.com/index.php?pid=109

I would think about converting to the newer charging system

http://www.mymopar.com/index.php?pid=78

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#2408747 - 11/25/17 03:53 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
wally426ci Offline
master

Registered: 07/26/07
Posts: 2514
Loc: Maryland
I have not probed the regulator points. I did swap the regulator for no change. I then decided to swap another alternator in. That changed the volt ratings inside the truck and it now pulses by a half an amp or so..

See my youtube upload https://youtu.be/6DkWHOLzsxk

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#2408748 - 11/25/17 03:57 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
Supercuda Offline
I Live Here

Registered: 09/04/07
Posts: 13071
that is what a mechanical regulator looks like when it's doing it's thing.

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#2408750 - 11/25/17 04:03 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
Andrewh Offline
master

Registered: 02/17/03
Posts: 7734
you still need to verify sensing voltage, and as said before use the case as your ground point.

I expect you will find at least 1 volt drop causing your higher charging voltage.

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#2408751 - 11/25/17 04:03 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
wally426ci Offline
master

Registered: 07/26/07
Posts: 2514
Loc: Maryland
Actually, i have it set up to newer square back with mopar electronic ign

Are you thinking i should leave it and see how it goes?

My analyzer ws flashing bad alt brushes on the previous alt...

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#2408800 - 11/25/17 06:24 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
Supercuda Offline
I Live Here

Registered: 09/04/07
Posts: 13071
If you have the newer setup and it's doing that you have a problem.

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#2408817 - 11/25/17 07:01 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
RapidRobert Online   content
Circle Track

Registered: 11/20/03
Posts: 33622
Loc: Lincoln Nebraska
that charging rate is too high. I'm thinking this 2nd electromechanical reg is the problem, a considerably way less 2nd choice would be the alt. I would certainly want to get an electronic reg which most parts house types are now (have no wire wound resistors on the bottom side of it) & a Wells 706 (iirc) was the last electronic one I got but it dont look OE (if that is critical). For sure the starting issue ain't a lack of voltage but it is critical to get this dealt with first as that high of voltage will fry (or significantly shorten the life) of bulbs and any electrical component that is "on" while it is charging that high. As said jump from the batt positive post to the "ign" terminal on the reg but your (posted) voltage drops are about as perfect as I have ever seen & a voltage drop might not be the issue (easy/free to check). I'm assuming the reg is grounded well since it has been changed & confirm the block is grounded well to the firewall/batt neg post. Backing up a bit I'm assuming you have a 2 field terminal alt with one terminal grounded.
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#2409108 - 11/26/17 11:09 AM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
wally426ci Offline
master

Registered: 07/26/07
Posts: 2514
Loc: Maryland
Hey Robert - i will post the 2nd alternator results

If you watch the youtube video, that is after the alternator change which was the only thing that affected the reading change at the cab gauge...

I have the newer style triangle plug regulator with both alt wires correctly connected. The hard start may have been a coincidence and is so far cured with the new ign switch. All firewall/harness connections clean and tight...

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#2409318 - 11/26/17 07:16 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
RapidRobert Online   content
Circle Track

Registered: 11/20/03
Posts: 33622
Loc: Lincoln Nebraska
You know I was out jogging today & it crossed my mind that the unsteady ammeter needle would be from an electromechanical reg that ain't quite right or alt brushes/commutator (intermittent contact) but with your electronic reg that elims that. So I am thinking the alt if your idle speed is up high enough where it is supposed to be. On the high charging rate (which has to be dealt with) a sulphated battery would be the last potential but do continue to check voltage drops & jumping 12V to the reg "side" blue wire terminal would be my first step (a thin pin to stick in the triangle connector).
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live every 24 hour block of time like it's your last day on earth

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#2409507 - 11/27/17 07:07 AM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
wally426ci Offline
master

Registered: 07/26/07
Posts: 2514
Loc: Maryland
Will do

That Amp label is stuck over a volt gauge so that needle wiggle is pulsing from 12-12.5 and then on rev it goes up a half volt or so with the same range wiggle....

I'll try to get time this week again. I've never used a volt gauge before this truck so I am not sure how they should be reading when tapping the full voltage at the gauges before the limiter.....

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#2409550 - 11/27/17 09:38 AM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
RapidRobert Online   content
Circle Track

Registered: 11/20/03
Posts: 33622
Loc: Lincoln Nebraska
If that is actually a voltmeter then that wiggle/slight raise you reported is normal. but 15+ is still a critical problem.
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live every 24 hour block of time like it's your last day on earth

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#2409586 - 11/27/17 10:38 AM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
wally426ci Offline
master

Registered: 07/26/07
Posts: 2514
Loc: Maryland
Gotcha. I'll reflect the recent alt change voltage numbers. I think I switched this alt out originally because I didn't like that "wiggle"

so, maybe I've been running a jacked up alt for a while and it took more of a dive recently.......

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#2414954 - 12/07/17 07:32 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
wally426ci Offline
master

Registered: 07/26/07
Posts: 2514
Loc: Maryland
Ugh. Baffled by high alt stud voltage reading. Had a new alternator on the bench so i swapped that in. New battery because the old was not holding charge. All of my voltage readings are very similar to first numbers posted (15.6 at alt stud)

Tried a new regulator for kicks with no change. Figured it was worth a try...

Alt wire goes straight to starter relay (madd style) could it be something in that neighborhood? Fusible link connections?

Starting problem cured with new switch. Volt gauge still pulses 12-13 volts


Edited by wally426ci (12/07/17 07:33 PM)

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#2414963 - 12/07/17 07:48 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
Supercuda Offline
I Live Here

Registered: 09/04/07
Posts: 13071
Originally Posted By wally426ci
I've never used a volt gauge before this truck so I am not sure how they should be reading when tapping the full voltage at the gauges before the limiter.....


Do you know how the IVR works? It's a clicker type regulator that uses the current passing thru it to heat up a bimetallic trip that cycles the load (gauges) on and off, you pick a poor source for your voltmeter as it is seeing that load clicking on and off.

Did you ever get a reading at the voltage regulator sense voltage? I didn't see it in the thread. I suspect it is low.


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#2415004 - 12/07/17 09:04 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
wally426ci Offline
master

Registered: 07/26/07
Posts: 2514
Loc: Maryland
I'll take that reading over the weekend.

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#2415119 - 12/08/17 07:23 AM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
wally426ci Offline
master

Registered: 07/26/07
Posts: 2514
Loc: Maryland
Hey Supercuda - the gauge is connected to voltage once Key turns on. a separate wire feeds the limiter to the gauges. Before the hard start and low reading issue, the gauge read steady - but I admit that I never checked the voltage when I thought the system was operating correctly.

The needle never pulsed before this whole issue..... When I fist did the wiring, I had the needle pulse and swapped alternators. Now I wonder if there was an issue with the swapped in alt......

I'll check my connections at the starter relay this weekend and get the volt reading from the regulator. I would think I can check those readings at the field terminals on the alt since the wires connect?

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#2415162 - 12/08/17 09:14 AM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
Supercuda Offline
I Live Here

Registered: 09/04/07
Posts: 13071
You really want to check as close as possible to the VR. The sense line splits at the ballast so you would not be checking the feed to the VR at all.

If you followed Chrysler color codes the blue wire is the sense line, should be the same as the battery or alternator output voltage. The green line controls the alternator and you need to check each end and compare as that reading will vary depending on load.

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#2415201 - 12/08/17 10:24 AM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
therocks Offline
Its Lost

Registered: 01/20/03
Posts: 19176
Loc: Niles , Ohio
Do you still have the factory amp gauge?If it has one try disconnecting it.I had lots of problems with the ones in my trucks.Unhooked all and used a vot meter.That and Wells isnt the best brand for electronics.i use Standards etc.Rocky
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#2415208 - 12/08/17 10:38 AM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
Supercuda Offline
I Live Here

Registered: 09/04/07
Posts: 13071
Read the thread

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#2415859 - 12/09/17 04:45 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
wally426ci Offline
master

Registered: 07/26/07
Posts: 2514
Loc: Maryland
Ok, with the vr triangular plug at the bottom of the vr, i got the following readings:

Idle: top wire = 14.4 bottom right = 4.6
rev: top wire = 15.5 bottom right =13

Truck was wired without issue for a few years.

I did question myself after seeing a diagram that showed the ignition feeding from the lower vr terminal. Mine is fed from the top like other diagrams. I used jumpers to swap the field connections onnthe vr for a few minutes. I must have cooked that new vr because after that the alt stud readings held steady around 12.26 and the gauge in the truck was no longer reading.

So far i have not run seperate witing like Robert suggested as i wanted to report back first. In addition, i added an extra ground and cleaned the alt connections at starter relay. New positive bat cable since i had one.


Edited by wally426ci (12/11/17 12:13 PM)

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#2415875 - 12/09/17 05:04 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
mopars4ever Offline
I Live Here

Registered: 01/20/03
Posts: 10793
Loc: md
I had a overcharging problem and it was a melted blue wire in my dash harness. It looked like the wire had been pinched and finally over time grounded and melted.

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#2415895 - 12/09/17 06:04 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
Supercuda Offline
I Live Here

Registered: 09/04/07
Posts: 13071
Looks like the voltage sense is reading properly.

What does the ground for both the regulator and alternator look like? I'd run extra for testing.

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#2416421 - 12/10/17 06:39 PM Re: Finding the Voltage drop 68 Dodge Truck issue [Re: wally426ci]
70HemiGTX Offline
top fuel

Registered: 01/20/03
Posts: 2090
Loc: PA
I had an overcharging and starting problem with my 71 Challenger. Once in a while it would not start. A few times I ended up "pop starting" it. The voltage was low at idle and way over when revving. I'd blow the caps off the battery. I couldn't find the problem and had 3 different garages hunt for the problem. No one found anything. One day I was under the dash and just happened to notice the connector plug for the steering column to the dash harness had a black streak in it. It was the heavy red wire. I clipped the wire on both sides of the connector and bypassed it with a separate connection. It was fixed. No more problems with it not starting and overcharging.

So look for a bad connection. Especially in your hot wire from your starter to the relay.

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#2416780 - 12/11/17 12:05 PM Re: Over Charging Problem 68 Dodge Truck [Re: wally426ci]
wally426ci Offline
master

Registered: 07/26/07
Posts: 2514
Loc: Maryland
Thanks - still trying to get some time to bypass some wires as suggested by Robert - banging my head against wall at the moment... help


Edited by wally426ci (12/11/17 12:05 PM)

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#2417064 - 12/11/17 08:44 PM Re: Over Charging Problem 68 Dodge Truck [Re: wally426ci]
RapidRobert Online   content
Circle Track

Registered: 11/20/03
Posts: 33622
Loc: Lincoln Nebraska
when the shop tested the alt did they give you a sheet with the voltage? which is what it produces when full fielded. You might try this: pull both female terminals off of the alt male field terminals & jump one terminal to the nearby alt case (ground) then hook the voltmeter to the alt (batt stud/nearby alt case) & idle it at a good fast idle & jump 12V to the other alt male field terminal for several seconds, just long enough to see what the voltmeter reads & have all lights/accessories OFF for this. Is this the same 15+V reading you are dealing with? You might also grab a coil of wire & some alligator clips from the HELP section at your parts house & make some jumpers & pull both field leads from the alt & pull the triangle reg connector & jump 12V to the top reg nub and 12V to either male alt field terminal then connect the other reg (side) nub only to the other alt male field terminal & jumper from the reg case to ground & start it & at a fast idle see what the voltmeter AT the alt reads. this takes the wiring out of the picture & only leaves the reg or the alt. & electronic regs almost always either go open (no charging) or full field (max voltage the alt can produce).
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live every 24 hour block of time like it's your last day on earth

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#2417375 - 12/12/17 12:17 PM Re: Over Charging Problem 68 Dodge Truck [Re: wally426ci]
wally426ci Offline
master

Registered: 07/26/07
Posts: 2514
Loc: Maryland
Thanks for not getting frustrated with this long lasting Help thread guys. I'll try to see if I have the alt card somewhere. I plan on getting back to this over the weekend. It's super cold out and our 140 yr old house requires attention at times....

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#2419525 - 12/16/17 02:21 PM Re: Over Charging Problem 68 Dodge Truck [Re: wally426ci]
wally426ci Offline
master

Registered: 07/26/07
Posts: 2514
Loc: Maryland
Robert/Supercuda - thank you for hanging in there with me. After 20 years of driving old mopars, i always figure "won't happen to me"

I believe my main problem was a firewall connection. When i rewired, i traced back to find that i had created a connection for the ignition feed before it entered the cab. That short portion of the engine harness wire was brittle.

I drilled that wire out of the plug as well as the amp heavy wire and made a tight bullet connection wire to wire after pulling through firewall. I still want to be able to pull everything apart if need be.

In addition, i cleaned my fuse block connections again.

Those fixes now give me 14.7 idle up to 14.5 on the alt stud and a steady 12 on the volt gauge with no fluctuation.

I think i've been overcharging for a couple years without realizing until i killed the last battery.

I am over the moon!!

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#2419538 - 12/16/17 02:54 PM Re: Over Charging Problem 68 Dodge Truck [Re: wally426ci]
Supercuda Offline
I Live Here

Registered: 09/04/07
Posts: 13071
Excellent

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#2419612 - 12/16/17 06:33 PM Re: Over Charging Problem 68 Dodge Truck [Re: wally426ci]
RapidRobert Online   content
Circle Track

Registered: 11/20/03
Posts: 33622
Loc: Lincoln Nebraska
That was too easy!
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live every 24 hour block of time like it's your last day on earth

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