ECSB 4WD 4l60E to 4l80E
#132
Thread Starter
TECH Senior Member
iTrader: (7)
Joined: Jun 2004
Posts: 5,446
Likes: 7
From: Central Kentucky
Installed the transmission lines. Not much to say.
Had to pull the front grille to get to the cooler. New lines on top, old on bottom. Get them unhooked from the radiator and cooler, small clips hold them under the engine. Unclip them there and remove a couple of clips that keep them tied together. Fish them out toward the front of the truck. Messy and and a puzzle.


It's not a direct fit so far. Guess where the 2500 sits higher on the frame. Anybody know of a tool to make these type fittings. I'd like to cut some length off the new line and re flare it.
New line in background. Old line in the foreground.
Had to pull the front grille to get to the cooler. New lines on top, old on bottom. Get them unhooked from the radiator and cooler, small clips hold them under the engine. Unclip them there and remove a couple of clips that keep them tied together. Fish them out toward the front of the truck. Messy and and a puzzle.


It's not a direct fit so far. Guess where the 2500 sits higher on the frame. Anybody know of a tool to make these type fittings. I'd like to cut some length off the new line and re flare it.
New line in background. Old line in the foreground.
Last edited by KySilverado; Nov 29, 2008 at 04:17 PM.
#134
You could probably use a hydraulic 'olive' type joining fitting. We use them at work for air, fluids etc. That's what I'd use.
As for the pcm connections....yeah...you really need to remove those covers. They're designed to lock those tabs in behind the lip on the pins and stop them from sliding backwards as you plug them into the PCM.
Just a note on your speed sensor....apparently the OEM speed sensor wires are a 'twisted pair' for reasons of warding off/blocking interference from other electrical signals within the rest of the wiring loom.
I don't know how important/true that is....but apparently the speed sensors are quite sensitive to interference.
Also....it doesn't matter which wire goes to which of the two pins at the PCM.
EDIT: easy way to make them a twisted pair....tie one end of each wire to something and put the two 'other' ends in the battery drill....pull the trigger. Voila...twisted pair.
As for the pcm connections....yeah...you really need to remove those covers. They're designed to lock those tabs in behind the lip on the pins and stop them from sliding backwards as you plug them into the PCM.
Just a note on your speed sensor....apparently the OEM speed sensor wires are a 'twisted pair' for reasons of warding off/blocking interference from other electrical signals within the rest of the wiring loom.
I don't know how important/true that is....but apparently the speed sensors are quite sensitive to interference.
Also....it doesn't matter which wire goes to which of the two pins at the PCM.
EDIT: easy way to make them a twisted pair....tie one end of each wire to something and put the two 'other' ends in the battery drill....pull the trigger. Voila...twisted pair.
#135
Thread Starter
TECH Senior Member
iTrader: (7)
Joined: Jun 2004
Posts: 5,446
Likes: 7
From: Central Kentucky
You could probably use a hydraulic 'olive' type joining fitting. We use them at work for air, fluids etc. That's what I'd use.
As for the pcm connections....yeah...you really need to remove those covers. They're designed to lock those tabs in behind the lip on the pins and stop them from sliding backwards as you plug them into the PCM.
Just a note on your speed sensor....apparently the OEM speed sensor wires are a 'twisted pair' for reasons of warding off/blocking interference from other electrical signals within the rest of the wiring loom.
I don't know how important/true that is....but apparently the speed sensors are quite sensitive to interference.
Also....it doesn't matter which wire goes to which of the two pins at the PCM.
EDIT: easy way to make them a twisted pair....tie one end of each wire to something and put the two 'other' ends in the battery drill....pull the trigger. Voila...twisted pair.
As for the pcm connections....yeah...you really need to remove those covers. They're designed to lock those tabs in behind the lip on the pins and stop them from sliding backwards as you plug them into the PCM.
Just a note on your speed sensor....apparently the OEM speed sensor wires are a 'twisted pair' for reasons of warding off/blocking interference from other electrical signals within the rest of the wiring loom.
I don't know how important/true that is....but apparently the speed sensors are quite sensitive to interference.
Also....it doesn't matter which wire goes to which of the two pins at the PCM.
EDIT: easy way to make them a twisted pair....tie one end of each wire to something and put the two 'other' ends in the battery drill....pull the trigger. Voila...twisted pair.

#138
This is what I'd use....and just cut a section out back further...under the truck.
http://www.ultimatehandyman.co.uk/di...n_fittings.htm
They're available in stainless.
http://www.ultimatehandyman.co.uk/di...n_fittings.htm
They're available in stainless.
#139
This is what I'd use....and just cut a section out back further...under the truck.
http://www.ultimatehandyman.co.uk/di...n_fittings.htm
They're available in stainless.
http://www.ultimatehandyman.co.uk/di...n_fittings.htm
They're available in stainless.


