Rebuilt Injectors and a new turbo questions.

[ford_muscle1]

So a couple weeks ago my truck went from getting 15 mph on the regular to all of a sudden I can't get better than 10 mpg. I'm really not sure what is up with it. It also started making a different turbo whistle about the same time. It still has the typical 6.0 whistle but now it has a strange secondary whistle. The truck went to a ford dealer to have a injector nozzle replaced and the Ecm and FICM updated with the current flash.

So now that leads me to this. Since my truck is under warranty they only replaced 1 injector nozzle and I'm afraid that another will fail soon and do not want to be sitting along side the road until the replace all 8 so I figured I would buy injectors and replace them all at 1 time and be done. I was looking at Warren Diesel 175 with stock nozzles and 175 with the upgraded nozzles. What is the biggest difference in them? Also is Warren a good company with a good product?

Now getting to the turbo I was thinking about getting a Garrett Powermax to upgrade the turbo and hope the weird whistle goes away. Now would that be a good match for that injector setup?

The truck only has 90,000 on it and has been head studded.

 

[ghohouston]

Your bellows are probably broken on your up pipes, causing the secondary whistle, or a boost leak. Check the fireeall/up pipes for soot.

 

[ford_muscle1]

That is a good thought. I hadn't thought about the up pipes possibly being damaged. I will check.

I am still looking at doing the injectors but really looking at the Holder Diesels 175 just not sure if that's ok with just a Powermax and some tuning.