Hot Exhaust?

I think you're taking about the dpf regen. It's safe to move, it's just saying be careful where you park because the exhaust can start a fire. Don't think you should turn the engine off till it's done with the regen

 

It does mean it's regening ..... You can shut it down if you have to. But I let it idle for a minute or two. It will stop regening when you come to a stop anyway.. So the regen will be continued later when all parameters are met.

How's your fuel milage......?

 

The high exhaust temp light will come on when ever the exhaust is over 700 degrees or so and you are under 5 mph. It doesn't necessarily mean you are regening. It comes on as a warning that the exhaust is hotter than usual and just a heads up if you parked over grass or near flammable gases or whatever. Regens do not occur when an engine is at idle. If you are just pulling in to a stop after a long heavy pull and your engine is hot hot hot you should be running it for a few minutes to cool down anyway, so it would be better to run the engine for a bit if the temp light is on.

 

So your either regening or climbing mt Everest ..... if your putting around town and the hest light is on, I think you can say why.......

 

heavyd is correct.

it'll come on if you come to a stop after a hard pull. without giving it time to cool down.

if it were regening, the regen light would come on. and you'd have to activate the regen switch,. i don't think kw's are programmed to automatically do it like the volvo's.

 

The same thing happens to me with my engine but before that problem did not occur to me, I already changed the filters and the igr cooler sensors and it continues the same