Not sure if i have bad injectors. I know they havent been changed in almost 150k. Will be doing that this weekend. But what is this on my intake. Also looks like intake is cracked

 

Fuel injectors usually don't go bad...usually. They might need cleaning. Do you have a scanner that can read live data from the engine?

 

No i dont but im constantly working on this thing. What would you reccomend. I dont wanna spend an arm and a leg. But i also want accurate info

 

What kind of gas mileage are you getting? How old are the O2 sensors?

 

For around $30 you can get an autel 319 on amazon or something similar. I know fer shore it reads live data.

 

My 95 5.9 single cab short bed 4x4 that I bought with 187k and I did ALOT to that truck, all the best fluids, parts etc (did my own work) I got 8 maybe 9 mpgs on a good day. Same mileage when sold at 245k

my 2002 quad cab long bed 4x4 with 265/75/17 10 ply tires (5.9l 3rd gen with currently 158k) that I currently own gets 11-13mpgs….15 on a long consistent 55mph road (which there’s many here in maine)

these engines were built to work, not put put get good gas mileage

 

Huh? What are we looking for in the pics? Everything looks normal. Injectors don't go bad. Run some cleaner if you like. Keep tires aired up. Anywhere from 10-17mpg is normal.