06 Duramax lost some power, gained a lot of black smoke
#1
06 Duramax lost some power, gained a lot of black smoke
Any thoughts? EGR maybe? Do the catalytlic converters clog? Truck has 95,000 miles. Fresh air and fuel filters. Seems to start and run fine but under load it blows black smoke and I have to put my foot in it a lot farther lately. No error codes...
#2
#3
Thanks for the reply. After I started noticing the power loss and seeing the excessive smoke I decided I was pretty close to needing a new fuel filter anyway so I changed it and it didnt seem to fix it. Everything is stock except for a K&N air filter element. I've run a couple tanks of fuel through it and tried some injector cleaner and it's is the same.
#6
#7
Get rid of the k&n filter.. We did a dyno test of 5 intakes and filters on our 06 shop truck and the k&n actually built the least amount of power. But i would try cleaning the maf sensor since the k&n have a nasty habit of gunking those kinda thing up. And if you want a aftermarket filter i would look into a afe intake or a sb.
#10
06 duramax/ same problem
I hope I'm doing this right... I have an 06 Duramax as well. Last night on the interstate I noticed I was losing some power. When I looked in my mirrors I could see smoke in the lights of the cars behind me. So today after reading several blogs I had the K&N filter recharged, and got some MAF cleaner from the auto parts store down the road. But engine light is still on and still have excessive smoke when accellerating?