As much as I hate to get involved with it, one of my nephews bought himself an 08 King Ranch with the 6. 4L in it. Its got 120K, so no warranty, and now its acting a fool.
He limped it to my house and was asking me what was wrong with it, the thing rolls various colors of smoke if you try to drive it down the highway, CEL is on, no power. . etc... I told him to take it to Autozone and get them to check codes. Its got a code for EGR valve failure, and some code for engine misfire.
I am under the impression that he got some bad fuel, we changed the fuel filters and I poured some extremely concentrated fuel conditioner directly into the filter, then more into the tank. As we were letting the truck idle we noticed the sound/attitude of the engine change... . (and you could smell the fuel conditioner being burnt... this stuff is extremely concentrated and has a very strong odor!)
Took it for another spin and its back to normal?????!!!
MY question is, is it fixed??.
The EGR code and misfire don't really sound like something that a filter and conditioner could fix...
Did the EGR stick and because the engine started stumbling, the ECM decided it was misfiring ???
He limped it to my house and was asking me what was wrong with it, the thing rolls various colors of smoke if you try to drive it down the highway, CEL is on, no power. . etc... I told him to take it to Autozone and get them to check codes. Its got a code for EGR valve failure, and some code for engine misfire.
I am under the impression that he got some bad fuel, we changed the fuel filters and I poured some extremely concentrated fuel conditioner directly into the filter, then more into the tank. As we were letting the truck idle we noticed the sound/attitude of the engine change... . (and you could smell the fuel conditioner being burnt... this stuff is extremely concentrated and has a very strong odor!)
Took it for another spin and its back to normal?????!!!
MY question is, is it fixed??.
The EGR code and misfire don't really sound like something that a filter and conditioner could fix...
Did the EGR stick and because the engine started stumbling, the ECM decided it was misfiring ???