How to idle on high RPM Kenworth T680 2016

sounds like a mash stick before they started putting cruise control on trucks ...... mash it down put the stick in and go .... was handy in wide open country because you had to yank it or kick it out ........ some of these new guys would have a little bit of trouble adjusting to the old trucks .... no power steering no ac or bad ac at best .... no tvs or video games in the trucks ... ride like tanks .... ect

 

DOH. It's been so long since I used it.

Cruise ON. RESUME to increase. SET to decrease.

 

ACC, Alabama cruise control.

 

They also say wind-chill will effect fuel and def gelling/freezing...

 

That’s funny in the old days we used to have something called a throttle cable that you pulled out and turned in if that didn’t work you’d put a stick between the dash in the fuel pedal!!!

 

Working for werner here, that's an issue. My t680 truck normally idles at under 600rpm (like 575). Randomly it got louder, and started idling at above 700rpm (725). The not normal whine is very bothersome, and I've had drivers knock on my door asking to turn off my truck because it was disturbing. I've had it fixed before and will again soon. Have a mech look at it.

 

Also, if I feathered the pedal lightly or touch the brake, it will stop, and go back down to under 600. Once I let go, it'll snap back up to over 700. My cruise to custom the idle level doesn't work when it does that either.

 

Truck is doing a auto elevate to protect dpf system .. 575 all night will plug it solid over time so it raises rpm to keep clean.. if it’s doing it more often your dpf is probably getting full .. drivers don’t idle the truck properly so the computers do it for them now on many models.

 

its more so the fact the carriers have the ecm locked down. carriers this size look at trucks as a reoccuring expense. they buy, then sell in 5 years, then repeat. there is no buy, pay off then maintain for next 15 years. a truck is a expense equivalent to a power bill

 

ECM....

You bought a truck with an ECM. Take the Truck to Dealer, Tell the Dealer You want to update the Program, pick and choose what you want and don't want. Its password proteced. Have them remove the old password and put the factory password in so any tech with laptop can access your ECM data link. Having access to data can help you manage fuel consuption, rated power and set idle parameters.

Its not a DIY...unless you have a copy of the licensed software and a Laptop with Wndows OS. $1500.00.

ALSO All lot of warranties are written with Factory Code Authorized Only. No Code No Warranty.

Or, buy a APU.....

Thanks