Project Red Goat Work Truck - Dodge Cummins Diesel Forum
3rd Gen. Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect...NO ADVERTISING

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  • 1 Post By 68Timber
  • 1 Post By steelhead1
 
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post #1 of 7 (permalink) Old 03-28-2019, 07:48 AM Thread Starter
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Project Red Goat Work Truck

Hello,

Long time reader, random poster.

I purchased a LBRC 2005 2500 4x4 Cummins last summer with a dead #6 cylinder: the purchase price reflected this.


The Previous Owner, PO, had a Midwest Transmission NV-4500 kit installed by a local shop prior to the purchase.

MTCRY038.

https://www.midwesttrans.com/Dodge_%...nsmission.html

I drove the truck before purchasing & it had issues besides low power.
Various Dash lights were on, the alarm would go off if you didnít have your foot on the brake when starting it, just issues.

We finally have the engine back together.


All OEM parts including the entire new Rocker Arm Assembly because about 8 lash caps were in the oil pan.

ARE Head Studs were also installed.


Anywho,

It seems the ECM was never flashed; in-fact, the local hack shop didnít even mount the master cylinder reservoir. It was just laid up there on other items at the fire wall.

Bare wires/cut wires galore.

Weíve pretty much got the wiring repaired.

Now for my questions-

1. Besides flashing the ECM, what else is needed to get this truck functioning correctly?

Is there other wiring that needs to be redone/ changed?

2. This truck is going to be a work truck: no hotroding. I need a dependable work truck.
That being said, whatís the best avenue for straightening out the ECM?

Thanks In Advance.


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post #2 of 7 (permalink) Old 03-28-2019, 10:06 AM
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Lots of ECM info in this thread: LINK It's somewhat long and tedious but good info. Hope it helps. Nice truck.
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John

2007 2wd 2500 Laramie crew cab 5.9/auto
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post #3 of 7 (permalink) Old 03-28-2019, 07:48 PM
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Get the FSM with all the wiring diagrams.
Get a quality soldering iron 40watt with heat regulation and quality 60/40 solder with internal flux.
All wire splices twisted and soldered with glue interior heat shrink over the top. NO crimp wire splices even with heat shrink, they pull and vibrate loose, drive you crazy.

Do all the grounds, take apart, clean with rotary wire brush, coat with dielectric grease. Use SS star washers on all especially any of the ECM grounds to frame/firewall.

Myself, to save headaches, I would start with a new Mopar factory ECM since it sounds like the PO did a real dog pouch on the truck systems. Most likely not the correct ECM for your year.
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post #4 of 7 (permalink) Old 03-28-2019, 10:20 PM Thread Starter
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Quote:
Originally Posted by 68Timber View Post
Lots of ECM info in this thread: LINK It's somewhat long and tedious but good info. Hope it helps. Nice truck.


Thank You.


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post #5 of 7 (permalink) Old 03-28-2019, 10:21 PM Thread Starter
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Quote:
Originally Posted by steelhead1 View Post
Get the FSM with all the wiring diagrams.
Get a quality soldering iron 40watt with heat regulation and quality 60/40 solder with internal flux.
All wire splices twisted and soldered with glue interior heat shrink over the top. NO crimp wire splices even with heat shrink, they pull and vibrate loose, drive you crazy.

Do all the grounds, take apart, clean with rotary wire brush, coat with dielectric grease. Use SS star washers on all especially any of the ECM grounds to frame/firewall.

Myself, to save headaches, I would start with a new Mopar factory ECM since it sounds like the PO did a real dog pouch on the truck systems. Most likely not the correct ECM for your year.


Thank You.

I would wager a guess the ECM is the original, i.e. for the auto.


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post #6 of 7 (permalink) Old 03-29-2019, 10:13 PM Thread Starter
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So,
If the EPPS seems inop & you buy a new one, stick it on, & it doesnít correct the issue, whatís the next step?


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post #7 of 7 (permalink) Old 04-15-2019, 05:47 PM Thread Starter
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Project Red Goat Work Truck

Update.

Grounding Cable on the frame was broken. That has been repaired & now the engine will rev above 1500 rpm.

There are still codes present related to the Auto trans so I had it towed to a local Cummins specialist & he is going to reflash it.

In the mean time,

This was one of the symptoms & was replaced during the rebuild.



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