Can someone help me out. I erased my codes wich was 2106. I went for a ride. And my truck still falls into safe mode after 60 kmh wrench light comes on and I can't get a code. Truck has no power and no codes. Very frustrating. Any suggestions what it could be.

 

Suggest you identify what you're working on, first off.

 

Sorry about that. I'm working on a 5.4 2004 fx4. I changed the plugs, fuel filter, cleaned out the throttle body, and the mass air flow sensor, also cleaned my air filter it's a k&n cold air intake.

 

"FX4" is a trim/option package that was used on multiple F-series trucks including 1/2 ton and Super Duty models..

Which specific truck are you working on?

 

Click on the SEARCH box above and enter your code. You'll get several dozen prior threads on the same issue.

It is unlikely that your situation is any different.

 

F150 2004 5.4