exhaust brake

[199612v]

I use to be able to start up my truck and my exhaust brake would be on as long as i previously had my trailer hooked up, it no longer does that, I have to manually turn it on now. Anyone else had this happen?

Kevin

 

[TRAMPLINEMAN]

Nope, mine’s never done that. Mine’s always off and I have to turn it on.

 

[Cummins2014]

Mine comes back on after restarting as long as the trailer remains connected. The tow haul won’t it has to be turned back on after restart . If trailer has been disconnected then no it doesn’t come back on .

 

[kthaxton]

Same here...only stays on if a trailer is hooked up.

 

[jhenderson]

Same here.

 

[RT395]

ditto - stays on if the trailer is still hooked up.

 

[Wiredawg]

Us C&C truck bunch can turn ours on and it stays on unless we turn it off. I like leaving mine on all the time.

 

[Cummins12V98]

That ^^^^^ is a nice feature.

 

[Dasmoeturhead]

^^^^^^ Wish my 3500 would do that, but Hey! I like pushing buttons. : -)>

 

[Wiredawg]

See, everyone has their own woes... My C&C has factory backup camera system, but can't turn on grid lines. Good old FCA feels there is liability if body upfitter doesn't install it in the center of the body it and you end up backing into things. Mine is centered. Anyone have a green, yellow and red crayon I can borrow to copy the lines on?

 

[EDankievitch]

Every time I start up I have to turn the Engine brake on. I so hate that. I want things to stay the way I left them.

 

[Corbet]

You typically wouldn't want to use the exhaust brake in really slick conditions; I'm guessing that's the reason it defaults to off when the truck is first started

 

[Cummins2014]

You typically wouldn't want to use the exhaust brake in really slick conditions; I'm guessing that's the reason it defaults to off when the truck is first started

Makes sense to me, but the guys in Florida don't understand

 

[Wiredawg]

For guys with light little pickups, make sense, in fact, when it's colder than 33', it should auto de-tune 100hp so the go paddle don't get 'em in trouble too. For us heavy weights, no worries on both fronts.

 

[Newsa]

These trucks have an outside thermometer in the driver's side side view mirror.

They could have easily programmed the exhaust brake to stay on when activated and truck turned off/on except when the temps get below 40-45 F.

There could be residual ice on roads up to/down to 40-45 degrees if the over night temps got below 32F

 

[Wiredawg]

Newsa,

I believe all Ram trucks automatically run the exhaust brake after starting the truck when it's cold enough outside. If I'm correct, either touching either the brake or the accelerator disengages it, but would still require to manually turn on the switch to operate the vehicle with it on.

Ron

 

[jhenderson]

Newsa,

I believe all Ram trucks automatically run the exhaust brake after starting the truck when it's cold enough outside. If I'm correct, either touching either the brake or the accelerator disengages it, but would still require to manually turn on the switch to operate the vehicle with it on.

Ron

It automatically ramps up to 1000 rpm but you have to enable the exhaust brake before it will activate.

 

[Wiredawg]

I believe the exhaust brake operates in conjunction with the increased RPMs when the temp is down to a certain temp. I wished I could remember where I read this, but it's been a long time ago. I'm about 95% certain I'm correct. You know how you can tell when the EB is on with the loading sound from the engine. And, for us C&C guys, even with the EB switch on, it doesn't engage unless you are above "X" MPH or at startup when its cold. My truck is stored inside my shop which stays 50 to 60 degrees in the winter.

Do any of youse guys who live where there is real winter hear your EB on after starting up your trucks in the cold?

Ron

 

[kthaxton]

I've witnessed mine ramp up idle on its own many times, never saw the EB come on on its own.

 

[Wiredawg]

I copied this from my digital owner's manual:

"The exhaust brake feature can also be used to reduce the engine warm up time. To use the exhaust brake as a warm-up device, the vehicle must be stopped or moving less than 5 mph (8 km/h), the "Exhaust Brake Indicator" must be on, and the coolant temperature must be below 180°F (82°C) and ambient temperature below 60°F (16°C)."

Since my C&C EB is always on, whenever I start it and parameters are met, it will engage to speed up warming the truck. Pick/up owners can speed yours warming up too I believe is when you start it, you turn on the EB, and it meets the above parameters.

Cheers, Ron