Engine/Transmission (1998.5 - 2002) I could use some problem solving - truck won't xxxxx

[PRout]

Shew! Glad that one was solved so easily. That could have turned into a pia to troubleshoot.

Was extremely thoughtful for Bob W. to get that ecm in the mail so quick!

These are the kind of happy endings we like to hear. .

Added: That seems pretty silly mounting an ecm directly to an engine block. Looks like all this effort that has been put into finding ways to cool the electronics may be a significant way to "harden" up the weak links in our rigs after all. Am anxiously paying attention to what the best solutions will be on this one. Is the best approach relocating, insulation, or air cooling the ecm. Seems like relocating it would require modifying wiring harnesses, which is a little concerning. I havent looked at the harness so dont know how much slack is in there to work with, but maybe building an "Extender cable" might be an option allowing relocation. Im not too keen on movimg wire harnesses around after a few years of the elements turning it into a peice of petrified wire harness. In the long run i might prefer leaving the original harness resting in its natural position and plugging an extension cable into that to go the new ecm location. Just an observation. Might make a nice little "ecm relocation kit" project for someone.

Where the heck is that Dern Gary at when ya need him??

 

[surfbeetle]

On my 6. 5 diesel suburban, I had to get a kit to remote mount the pump mounted driver from the injection pump to the inside fender well. The original location is down in the valley of the V-8. Gets too hot down there. This kit consisted of a large heat sink similar to what you would see on a computer's processor and an extension cable to allow you to reposition it.



Since I'm a 12 valve guy, I just thought that I would suggest the above as a possible idea to relocate the ECM off of the engine block. You could even wire up a fan on it as well.

 

[JLandry]

... maybe building an "Extender cable" might be an option allowing relocation.

I thought about this very idea while driving to work this morning. Based on what I know about the cost for the 50 pin Deutsch plug and socket, unfortunately it wouldn't exactly be a cheap project... even if you didn't factor in any labor. I think the parts alone would be over $100.



John L.

 

[surfbeetle]

I thought about this very idea while driving to work this morning. Based on what I know about the cost for the 50 pin Deutsch plug and socket, unfortunately it wouldn't exactly be a cheap project... even if you didn't factor in any labor. I think the parts alone would be over $100.

John L.

Yes, that sounds about right, on the 6. 5 chevy, the extension cable is about 100 bucks with the heat sink. To put it into perspective, the first time you have to get a tow truck with your truck and trailer will eat up double that.

 

[rweis]

All I did to relocate the ECM was to turn the ECM around the verticle axis 180* and ziptie it to the OEM lp bracket on one end and "hang it" from the injector line bracket on the other end.



No pulling the cable, no stretching anything. Rotate 180* in the verticle plane which takes it out away from the engine block by about 6" about 1/2 way to the fender. It winds up just left of the steering tube by about 3" so it is not in any way close to anything that rotates, or anything that could jamb it or impact it.



Total cost 5 @12" zip ties



Bob Weis

 

[PRout]

Sounds like a winner! Jeez, now there is another weak link to think about. . Thats ok. Ive never had a truck that ran better at 160k miles than it did at 30k. Sure love these motors and drivetrains. . A couple zip ties we can handle. Sure beats having to drop the fuel tank again or something nasty like that.