Short Summary: Bought the truck a month ago for a good deal (2001 24v w/ NV5600, shortbed.) My 1st diesel.

 

Problems started with. AIRBAG light, reverse lights always on, cruise light on, leak from xfer case and also one on the motor. At this moment I am left with a leak on transfer case and cruise light as of yet.

 

New servo, brake light switch, ran the middle wire to clutch pedal, clockspring and checked cruise buttons for function. Also found no substantial power from pin 6 that crosses through the brake switch to the servo.

 

No go, called dealer after noticing too many flags of a hack job conversion. SO pump, hacked wiring harness and writing on the PCM like it was a junkyard computer. Dealer said the PCM isn't from this truck and is a tranny swap.

 

I heard 2001 nv5600 Cummins are vacuumless cruise, so what you think is wrong? Will PCM/ECM driven cruise run a vacuum servo cruise? What I am clueless is when I ran the NSS to the clutch, there was already a connector wired from a harness (yellow wires) to the clutch switch. I could not combine them, it wouldn't work. So I jumped the yellow ones and put in place the NSS on the clutch switch. Two safety switches???

 

Thanks in advance, spend a lot of time with no results.

I have seen many topics about some 99s/00s having a 6spd and a standard output.

 

What I know I have:

6spd PCM

SO Pump

Vacuum Cruise

 

ECM I assume is the original Auto

 

What type of cruise would a 99/00 have w/6spd? Regardless, looks like I need the vin out of a truck like that to truly net possible results. Unsure how to structure a code since they are rare and havent seen anyone post a vin.

I believe Dodge started using the 6 speed in 99.  The used smaller input shaft and clutch in 99 and 00. The HO engine was introduced in 01 and the 6 speed was upgraded to a larger input sahft and clutch. These were mated to the HO engine. Some body please correct me if I am wrong but thats what I remeber.

 

The PCM I dont think is specific to a 6 speed just to manual trans, 5 or 6 speed. I think I would call ACS, a computer vendor in vendors list, and talk to them about the issue. The mismatched parts and may the wiring harness might be issues. 

Just now, dripley said:

I believe Dodge started using the 6 speed in 99.  The used smaller input shaft and clutch in 99 and 00. The HO engine was introduced in 01 and the 6 speed was upgraded to a larger input sahft and clutch. These were mated to the HO engine. Some body please correct me if I am wrong but thats what I remeber.

 

The PCM I dont think is specific to a 6 speed just to manual trans, 5 or 6 speed. I think I would call ACS, a computer vendor in vendors list, and talk to them about the issue. The mismatched parts and maybe the wiring harness might be issues.