I worked for the National Forest Service several summers when I was in college in the Medicine Bow NF/Snowy Range, and the chains saws and other powered equipment had to have spark suppressor on the exhaust.
Diesel Vehicle Causes Fire in Cali..
- Thread starter krismoriah72
- Start date
One of the local government fleets had 6.4s and instructed their drivers to shut the trucks off when they went into regen, disconnect teh batteries, and then reconnect them and keep driving. They would eventually tow the trucks into us because the engines would either hydrolock or run absolutely terrible. We would drain 25+ quarts of mixed oil and diesel out, refill with new oil and filter and do a forced regen. Their rationale was they didn't want tourists to possibly see a truck in regen.
Nick1994
$100 site donor 2024
Sounds like a bro-dozer.
Towing company around the corner has gone back to gas engines. Too much lost revenue with the currant diesels.
When CHP calls they gave X amount of time to get to the accident. They can't wait for a truck to regen.
I have heard the repo guys are excited about the new 7.3 gas since it is really quiet.
I'd bet they went back to gas because of the hassle involved with the diesel trucks and the cost to maintain the exhaust system, the shortened life of an EGR engine and the VGT turbo. You don't have to wait for a regen. These trucks including over the road semi's and construction equipment all operate while in regen.
JHZR2
Staff member
Agree, Ive never heard of a truck that can’t operate while in regen.
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That was the 6.4 when they came out in 2008. A computer update fixed that. I find it hard to believe it happened again on the 6.7
I have seen trucks that HAD to do a parked regen.
This is pure insanity,
Some diesels are supposed to only regen when they are driven at xx mph min speed. Parked to regen does not make any sense to me. Someone please explain the rationale behind this.
OVERKILL
$100 Site Donor 2021
There are some vehicles that if they have failed to meet the parameters for an in-motion regen, due to duty cycle, will derate and require a stationary one. Some of those even require a diagnostic tool to initiate. It's nuts.
My ‘18 Duramax can get the stationary re-generation function activated at a dealer. Beats getting the thing towed or limping along... Some people buy diesels when their duty cycle denoted gasoline. Some people use the PTO function & that will require the enabling of stationary re-generations.
-John
-John
I've seen trucks where the engine management does an automatic regen while driving OR the driver can opt to do one while parked if it's convenient
Anyway, my car had a dpf regen monday morning on the way to work. Think my dpf may be on the way out as it was only 1200 miles since the last regen... took 10 minutes to complete as always and consumed a half quart of excess fuel.
If the filter is totally full, it will sometimes call for a parked regen.
We had one tractor at work do a 2+ hour regen in the yard last week, immediately AFTER ~120 miles at highway speed with a loaded trailer.
I saw a truck burn 20+ gallons of fuel doing a regen. It ran 1400RPM with the cooling fan engaged (215-220 degree coolant) for about an hour and a half...the exhaust was glowing cherry red, to about a foot from the tip, the floor of the cab was hot enough to burn. Windows open in the shade, it was almost 150 degrees in the cab.
Surely that can't be good for the environment.
Probably kind of hard on the equipment, too.
My Diesel pickup has never had to do a parked regen, or had any type of emissions issue for that matter.
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