raindog Posted September 25, 2014 Share Posted September 25, 2014 Hey folks:I had a similar experience as Mild Thunder did (see recent post 1998 E7 wont start). After a couple days of head scratchin and speaking to some knowledgeable folks, I found out that my ECM is bad. Was pretty much sure it was bad when I went over it with a multi-meter and the wiring diagram (I have a copy for a 1994 RD 688S if anyone ever needs one). Found out today that the ECM is bad for 100% sure, because the truck fired up instantly on a "test" ECM a very helpful service tech loaned me.Ok, so the old ECM is bad, I understand that I will need to get a new (used) ECM and have it "cloned" at a Mack Dealer.I've been told that there are places that remanufacture these (and do the programming too) and offer a lifetime warranty (apparently they use heavy duty components, etc).Can anyone recommend an outfit that will ship you a good ECM if you ship in your old one (assuming they can read the codes off the bad one?)Thanks in advance, Quote Link to comment Share on other sites More sharing options...
fullfuel01 Posted September 25, 2014 Share Posted September 25, 2014 If you find a place, let me know i have 2 ecm that need to visit a doctor. Quote Link to comment Share on other sites More sharing options...
jdfordhd Posted September 25, 2014 Share Posted September 25, 2014 Try these.http://www.ecmtogo.comhttp://www.midwestecmrepair.comhttp://www.bigrigecm.com/services/http://www.ecmking.com/heavyduty.html Quote "If it ain't got a motor, I ain't interested.!!" Link to comment Share on other sites More sharing options...
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