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Topic: 1996 Cummins 300 cruise control on warm up (Read 355 times) previous topic - next topic

1996 Cummins 300 cruise control on warm up

I seem to not be able to set the cruise control while warming it up in the garage. Works fine on the road. It will advance if holding the switch but when I let go, it goes back to idle. I swear it used to work. I have the retarder off.
1996 U295-36, Cummins 300hp, 8.3. Build number 4864. Vin number 1F97D536XTNO54271. Purchased October 31, 2019.

Re: 1996 Cummins 300 cruise control on warm up

Reply #1 –
Dan, Did you try this sequence?

Push the ON/OFF button, then push the SET button.  It should then go to fast idle.  Push the ON/OFF again, then back to normal.
Parking Brake on and Transmission in Neutral.

That should do it.
Mark & Bev
2001 U295 36' Slide
Cummins ISC 8.3 350HP
Build #5802
Jeep Wrangler Toad

Re: 1996 Cummins 300 cruise control on warm up

Reply #2 –
On mine (97 8.3) the sequence is:
1. On button;
2. Set button;
3. Resume and hold to desired rpm;
4. Release to maintain that rpm;
5. Touch brake pedal or off button to resume normal idle.
jor
93 225
95 300
97 270
99 320

Re: 1996 Cummins 300 cruise control on warm up

Reply #3 –
Has to have >80 lbs of pressure in the tanks to work if it's a Bendix.
1994 U280, Build 4490
Deming, NM.