02-08-2017 05:53 PM
Hope I’ve posted this in the correct place! I am trying to help a friend use a 1996 Peterbilt 379 running gear (1996 Caterpillar 3406e 5EK version engine) with a 2005 Peterbilt 379 cab/sleeper combination that was wired for the Cummins ISX type engine. I checked the schematics and it looks like this is doable fairly easily with a few wiring changes and minor parts substitutions. I am just curious about any special considerations for the Caterpillar ECM wiring, we are planning on using the J1587 and J1922 data links but not the J1939 data link as it apparently was not used originally. This vehicle is registered as a 1996 Peterbilt, any suggestions or comments are appreciated.
11-25-2013 02:44 PM
11-24-2013 07:25 PM
Thanks Dave for all the help i got hte truck running now ive got issues first got the jake hooked up like you said and i have nothing im thinking of just takingthe clutch and service brake and tieing them right to a common out of the ecm to bypass the switches all together is the a good or bad thing
second tachometer am i missing something hooked it up and it dont work signal negative to signal negative on ecm and same with the positive is there something im missing maybe like a 12v out of the ecm
Third Speedometer hooked up the way you said even changed the sensor on the transmission and it does nothing any help with these three would help me greatly cause ive been beating my head against the wall trying to figure this out
11-18-2013 10:36 PM
On the clucth fan could i just hook it up to the 2 wires already coming out of the cab from my fan switch i have. With me being heavy i normally just let the fan run espesially with all the mountians i pull.
11-18-2013 10:31 PM
Thanks Dave for my engine temp and oil pressure could i just tie in to the wiring before the sensors and just a run a wiring into the cab to the temp gauge and the oil gauge after 4 hours of tracing and checking wiring all im waiting on is the new TPS and checking to see if i could just splice into the wiring before the sensors cause i cant seem to find pin on the out going to the cab for the oil pressure and engine temp.
Thanks in advance for all the help you have given me
11-18-2013 07:26 AM