Hey guys here is a weird one:

Truck was acting up and doing the following:

No power

Shooting out black smoke trying to go up a hill

Loud Turbo squeel on accerlation not idle

Shop put in brand new Turbo and old one was bad

Two days later now the turbo squeel is back or sounds like it is coming from the turbo

Power is there but the same sound is back with the new turbo

NO tuner

The only thing I have done is put a 4 inch turbo back exhaust on it

I don't know if doing that would have blown the turbo?

Sinch the turbo back has been installed nothing but issues and $1500 bucks later on a new turbo

The truck has been reflased today from ford with all new updates

It's like the truck does not know what to do it has a high pitch hiss in and out while driving like when you let it idle it goes up and then goes down on the sounds of the idle

Now if have the power back at factory but the squeel is terrible on accerlation

Could the turbo be bad again or something else causing the squeel or maybe from the turbo.

I did put a straight through diamond eye muffler on the 4 inch to make it a little quite other than that no other changes.

Thanks

 

Are you getting any codes at all?? Is any of this "hiss" due to an exhaust leak??

 

a stright piped o3 is loud.
I suggest you go on to youtube and see if yours sounds like the others.
some people like it. some dont

 

hey guys I think you are correct. When they welded the muffler and the resonator in the 4 inch pipe that did a ****ty job and now I think the hiss is from the exhaust leak around it. Going to put 4 inch back all the way and see how it does.

Do I need a muffler or run it straight back again?

Thanks

Would the exhaust leak cause it not to run right and turbo spool higher than normal?

 

Thanks Sammy I think you are correct. Could the leak cause it not to run correctly and hiss on acceraltion? I don't hear it when the truck is sitting at idle

 

if you are making more the about 26 psi of boost then you have another issue.
so far as not running right not likly for a leak in the outlet pipe to cause that

 

check out this thread: https://www.ford-trucks.com/forums/9...ml#post8864269

 

What could be causing me to get too much boost. The only thing I have changed is the exhaust going into the turbo to a 4 inch. Since then downhill. Now I think my turbo is blown again. I cannot get past 2200 rpms at all and as I push the gas the squeel gets worse. Are there any belts specific that would cause me not to be able to get past 2200 rpm's at full throtle? Could backpressure be causing this due to a 4 inch exhaust back? Could it not be getting enough gas or air as well?

Thanks

 

most common thing for overboost is a stuck turbo.
the most common thing for inability to build rpm in ANY gear is lack of fuel. the lack of fuel can be from fuel pressure to injectors failing. ficm concerns etc.
a pluged cat should only make it harder and take longer to build rpm when in nutral or park. sence you have 4" exhaust thats not you issue.
for the concern to be air related your filter would have to be really pluged.
the squeal is going to be from one of a few things.
the serp belt
one of the pressurized intake or exhaust connections. most common here is:
egr cooler to intake
egr cooler to y pipe
y-pipe to turbo
hot side cac pipe
cold side cac pipe
or a failed turbo.
if you suspect a failed turbo causing all your issues the engine can be ran with out one. you just need to find a way to plug the turbo oil supply line or make sure you can flow the oil back in to the turbo drain tube. I would not attempt to drive down the road this way but for testing in a stall it can be done.

 

Can it also be caused by a HPOP leak?

 

what is the function of the hpop?
It supplies high side oil to fire the injectors. So yes, it effects fuel flow.
I have run into a small number of 03/04 pumps that had volume issues and icp ran good.
the way to test this would be to remove a valve cover and the supply line form the rail and crank engine over and watch. there is NO volume spec on the pump.
you can also perform a dead head test of the pump. that does require some special tools.

 

I just went out and took out the air filter. It's not factory but not a cold air intake either. It says something like Visteon on the top of it and it has a long filter that I had to buy at Napa. The filter is brand new. But I took out the filter today and full power and no squeel on accerlation.

Maybe with the new 4 inch exhaust I need a bigger air filter system or cold air intake? Or maybe the MAF is bad I know it is brand new as well.

I will go drive around for a while and see what it does. But no squeel and full power now with the air filter out of the box??

This is much improved over the past few updates

Any input now that things have changed and I do have power I guess now the 3 day brand new Turbo is not blown? Yea for now

Thanks

Please let me know what you think now with the new information

How long can I drive without a filter in the box? And what kind of new filter or cold air intake will I need if this is the issue?

 

I really would not go far with out air filter. dirt entering a high compression engine is bad.
I know about the visteon air filters. I have not see the issue from though.
I always suggest the correct oem filter and housing as the way to go. many will also agree. it flows more air and holds more dirt then anything you will find.

 

Glad to see you found the problem.

I wouldn't drive around without an air filter at all....you can ruin a turbo in a hurry.

The stock Donaldson filter is the way to go...it flows plenty of air and lasts for a long time.

 

Well I have full power now back with the filter in but flows better with it out.

I now have a ticking sound coming from the tailpipe. It's just a weird ticking sound that comes out as I accerlate.

Any input on the ticking sound. Maybe something was clogging up the air filter and now it's out

So where can i get the factory donaldson air system at the factory?

Will it flow better than what I have?