okay when driving my 4.6 um feeling WAYYYYY!! underpowered even underpowered from a good 4.6 but i am going to start with a tune up with a fuel filter what else should i do besides an air filter please help


Thanks,
Wes G.

 

Could do your front o2 sensors. As they get older they start switching slower and the air/fuel ratio gets worse.

 

well i forgot to add there is no code but i guess i could change all four with the fuel filter and tune up

 

Well only the front two change the air/fuel ratio, the back two just monitor cat efficiency. I know there's no code, but old o2 sensors clog up and slow down and new o2 sensors update more often so the air/fuel ratio stays more efficient. So there will be no benefit from changing out the back two.

 

okay thanks for the idea tommrow at the shop i get it in the air and take a look