Join Date: Feb 2010
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Drive to clean exhaust shows up if conditions have prevented the normal regens to start by itself for a while, or, previous driving conditions didn't allow the exhaust to get hot enough long enough to do any good....meaning the DPF is getting full and it's way overdue.
I find that if it's cold outside and I'm just driving around town while in regen, it'll stay in regen forever. The only way is to get it out on a long freeway drive to get things hot.
Regen once started on me just as I crested the hill on I-80 going downhill from Reno towards Sacramento. It's something like a 6Kft drop and my foot was off the pedal most of the time. Needless to say, I was blowing white/grey smoke for over20minutes all the way down since it was 30F outside and the exhaust never got hot. It was so annoying I used it as an excuse for a pee-break at the first exit to shut the stupid thing down.
My latest trick is putting the truck into neutral or park while at a stoplight to shut down regens if I know there's no chance I can get onto the freeway any time soon. That delays regen for a few minutes. It works for a while, but eventually, it'll restart as soon as you start moving again. Annoying to say the least, but it's better than watching my fuel gauge drop while trying to regen in futility in stop-and-go traffic. I let it do its thing once I know I can drive above 40mph.
If I'm in regen, I'll also throw the truck in park or neutral at a stoplight a few miles before my destination. That'll shut regens off and let things cool down by the time I get there. Did I say 'annoying' enough? Geeez....
'05 F150 FX4 SCrew
'10 F350 Lariat FX4 CC SRW LWB
Last edited by aquamans350; 11-27-2011 at 05:07 PM.