Having problems with your 2004 Ford F150 ?

2005 expedition 5.4 bank 1 too rich, cylinder 1 misfire, o2 sensor 1 error, I changed o2 sensor,spark plug & coil but engine is still smoking,raw fuel, doesn't seem to be firing on bank 1

Posted / edited by AnonymousUser on : 16-07-2018

Answers :

Un plug the fuel injector and see if the raw fuel smell, goes way, if it does the injector could be stuck open. if this is the case the more you run it the more fuel is getting into the crank case, this can wash the bearings and ruin the engine, check the oil see if you smell fuel if you do, you will have to pull up the injector rail with all the injectors and cycle the key one time, watch that injector to see if it drips fuel after the rest have stopped . if it leaks replace the injector all the injector o rings and change the oil.
Repair Help & Product Troubleshooting for 2004 Ford F150

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