Good Sam Club Open Roads Forum: Tow Vehicles: Onboard Tongue weight
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 > Onboard Tongue weight

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BenK

SF BayArea

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Joined: 04/18/2002

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Posted: 04/30/21 02:14pm Link  |  Quote  |  Print  |  Notify Moderator

Limp mode has several possible levels and can only guess what each OEM did, can do, etc.

Since today’s vehicles are highly integrated and computers & sensors the basis…along with software provides a huge matrix of of things it can do

Shift points (anyone know if today’s auto tranny’s can have ATF PSI adjusted?), fueling, RPM, etc, etc are all now controlled by computer. The driver no longer has any direct connection…all “Fly by wire”…

Burbman…that rental has all the metrics to have the OS refuse to move, or go into any level of limp mode.

Neighbor has a similar Lance that stuck out back a few feet, but no slides that he used to tow with a RAM 2500HD CTD Crew. Used to…’cuz he passed a few months ago from a heart attack.


-Ben Picture of my rig
1996 GMC SLT Suburban 3/4 ton K3500/7.4L/4:1/+150Kmiles orig owner...
1980 Chevy Silverado C10/long bed/"BUILT" 5.7L/3:73/1 ton helper springs/+329Kmiles, bought it from dad...
1998 Mazda B2500 (1/2 ton) pickup, 2nd owner...
Praise Dyno Brake equiped and all have "nose bleed" braking!
Previous trucks/offroaders: 40's Jeep restored in mid 60's / 69 DuneBuggy (approx +1K lb: VW pan/200hpCorvair: eng, cam, dual carb'w velocity stacks'n 18" runners, 4spd transaxle) made myself from ground up / 1970 Toyota FJ40 / 1973 K5 Blazer (2dr Tahoe, 1 ton axles front/rear, +255K miles when sold it)...
Sold the boat (looking for another): Trophy with twin 150's...
51 cylinders in household, what's yours?...

Lwiddis

Williams AZ area

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Posted: 04/30/21 05:58pm Link  |  Quote  |  Print  |  Notify Moderator

Sorry to hear your friend passed, BenK.


Winnebago 2101DS TT & 2020 Chevy Silverado 1500 LTZ Z71, 300 watt solar-parallel & MPPT, Trojan T-125s. TALL flag pole. Prefer boondocking, USFS, COE, BLM, NPS, TVA, state camps. Bicyclist14 yr. Army vet-11B40 then 11A - (MOS 1542 & 1560) IOBC & IOAC grad


mkirsch

Rochester, NY

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Posted: 05/03/21 07:26am Link  |  Quote  |  Print  |  Notify Moderator

BenK wrote:

Posted this on another thread about this...wonder how they designed in high hysteresis and high enough set points to manage dynamic & shock loads.


I can't imagine that the system would be active once the truck is put in gear.

It's not like you're going to run down the road with 1-2-3-4-flashing tail lights.


Putting 10-ply tires on half ton trucks since aught-four.

Grit dog

Black Diamond, WA

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Posted: 05/03/21 05:03pm Link  |  Quote  |  Print  |  Notify Moderator

Glad my truck didn't have that "feature" yesterday. It would have been squealing like a pig!


2016 Ram 2500, MotorOps.ca EFIlive tuned, 5” turbo back, 6" lift on 37s
2017 Heartland Torque T29

Grit dog

Black Diamond, WA

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Posted: 05/03/21 05:05pm Link  |  Quote  |  Print  |  Notify Moderator

blt2ski wrote:

Back in 2000 at a HS reunion, a friend of mine that was driving long haul, was going thru the Utah salt flats. Decided to see how fast his Kenworth could go. 110mph. 5 miles in neutral to slow back down to 60.
5-6 months later getting an oil change and service. Service tech came up to him scratching his head, truck computer says it hit 110 mph awhile back?!?!?


Marty



"Pigpen this here's the rubber duck and Imma bout to put the hammer down...."

* This post was edited 05/03/21 05:20pm by Grit dog *

1320Fastback

Vista, Ca

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Posted: 05/03/21 11:31pm Link  |  Quote  |  Print  |  Notify Moderator

I wonder how much warranty work will be denied because your trucks computer says you were over weight X amounts of time.


1992 D250 Cummins 5psd
2005 Forest River T26 Toy Hauler


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