CAT 3126 engine injectors [Archive] - Diesel Place : Chevrolet and GMC Diesel Truck Forums

: CAT 3126 engine injectors


nhraracer90
09-15-2011, 08:17 PM
Hello,
I have a 2000 F 750 with the 3126 CAT engine with 76000 miles. I started having engine problems with the truck and thought maybe I got some bad fuel, so I replaced the fuel filter and the fuel is loaded with oil. I went and talked to one of the mechanics at the ALBAN CAT dealer and he said that one of the injectors is bad and letting oil in the fuel system.

He said he's going to have to replace all the injectors because he doesn't know which one is bad. How true does this sound?

kevv
09-17-2011, 10:31 PM
It is possible but not too likely. It sound more like a injector o-ring leaking fuel into the oil.