[classicbroncoman]

Mid driving I heard a noise and the truck lost it's get up and go. It started driving like a big rig, taking forever to accelerate.

I looked up similar problems on this forum and here's everything I've tried... (oh and as I tried things, the error codes changed. I've gotten p1260 and p1248, p1000 and p0236)

Checked all the boots, they're connected properly

Replaced the Map Sensor (this seemed to make it a little less gutless, but still didn't feel like turbo kicking in)

Ordered a refurbished turbo and started taking things apart to replace it...

Found that the airfilter had partly collapsed and was blocking the intake, so I replaced the filter and buttoned things back up, hoping that was all. Didn't fix the problem.

Took the the turbo completely off (pain in the neck by the way) only to find that the turbo guys sent me an E-series thinking that was for our Excursion, but it wasn't, I need an F-series, grrrr - really people, this is your job...)

Needed to be able to drive the truck (although slowly) until correct part came, so I put it all back together again, here's the tricky part - no more error code (I've gotten a myriad of different codes throughout this whole process) and the turbo seems to be working.

It's not working at 100%, however, sometimes I give it gas and get nothing, but mostly the turbo works. Well we're going camping next weekend and I needed to know if we'd be able to pull our trailer up the hills to the mountains, so I hooked it up and went for a test drive and can tell it's just not going to have the power I need.

So that's the story (long one, sorry) I just don't know if it is the turbo that needs to be replaced, or if it could be something else and why it's not giving me an error code now and seems to be semi-working.

Thoughts, or ideas would be greatly appreciated, Thanks!

 

[tbpower]

You might have clogged up the intercooler with the filter that came apart. Another thought would be fuel restriction either from a dirty filter or clogged up screen in the tank.

 

[classicbroncoman]

The airfilter was still all intact, so I think we're good there, but I can definetly change the fuel filter and see if that helps, thanks!

Does it sound like this could be an electrical issue? What would I check if that were the case?

 

[MNdieselpower]

I would definitely look at the intercooler first and see if it is clogged up. Could be with your fuel supply as well. Maybe your fuel pump is starting to go if it runs fine and spools fine but you have "hiccups". Are you running stock air box? If so I hope you arent using a k and n replacement filter, there are plenty of horror stories with those. If I were you I would check the intercooler and then do the fuel filter and see if it makes a difference. Report back and let us know what you find

 

[tbpower]

The airfilter was still all intact, so I think we're good there, but I can definetly change the fuel filter and see if that helps, thanks!

Does it sound like this could be an electrical issue? What would I check if that were the case?

It sounds like fuel restriction to me. You stated that you are not getting the codes anymore so low fuel pressure/restriction will not set a code. Here is a link to the hutch mod. It eliminates the screens in the tank that tend to get clogged up. I would check your fuel filter first though.


Welcome to guzzle's In-tank Hutch Mod Web Page

 

[Camshaft]

I would double check the boots - or get a cheap boost gauge to tie into the MAP line just to see if you are building appropriate boost.

You could also have a hole in an IC tube or CAC....or drive pressures are low...

 

[Camshaft]

Don't forget the plenum boots...

 

[classicbroncoman]

What and Where are the Plennum boots? I'll see if I can get a boost gauge when I'm grabbing a new fuel filter, thanks.

 

[klhansen]

What and Where are the Plennum boots? I'll see if I can get a boost gauge when I'm grabbing a new fuel filter, thanks.

There are a total of 6 boots connecting the turbo to the engine. There's one on each end of the intercooler tubes that run forward to the intercooler, and below those at the turbo outlet, there are two more that connect the turbo outlet spider to the intake plenums on the inboard side of each head. They may be covered with oily smooge, effectively camoflaging them down in the valley.

The thing to do is remove all the boots, clean everything up spotless (use brake cleaner or some other solvent to get the oil off), then reinstall and clamp tight. Some guys use hairspray inside the boots to help seal them, but I use a little smear of liquid laundry detergent, which serves a twofold purpose. It lubricates the inside of the boot to make installation a little easier, and when it dries up it's kind of like glue.

 

[Camshaft]

Do not overtighten the plenum boots- the stamped metal plenums can distort.

 

[Camshaft]

...but I use a little smear of liquid laundry detergent, which serves a twofold purpose. It lubricates the inside of the boot to make installation a little easier, and when it dries up it's kind of like glue.

I would stick with unscented....

 

[classicbroncoman]

Okay, error codes back, I'm now getting p0238, p1000 and p0236 but I've already replaced the map sensor!?

 

[classicbroncoman]

I googled and someone else with these error codes was told they need a new wastegate solenoid but that it's not available aftermarket, only dealership. Dealership said the part was $612! Isn't it that thing on the Turbo pedestal? I mean when you buy a remanufactured turbo from o'reilly.com, it's only $200 more if you want the pedestal included, that just seems like an outrageous price and I'm not even sure if it's the problem

 

[lariat 7.3]

Waste gate solenoid is on top of the turbo with that red line going to it.pull the line off, it will allow you to build more boost

 

[2stroke&]

I am having same issue, though not throwing codes. Mine makes very little boost till 2200 or so rpm. By 2400 it seems to be making full boost. In overdrive it just wont cut it. I couldnt pull a birthday balloon 65 mph down hill in o.d. Turbo wheel looks fine and is zero play . Going to clean and inspect boots today,but not optimistic about that. If there were leaks causing lack of boost,wouldnt the turbo whine still be audible at 1500/1600 rmp.? Idont here it even trying till 2000.

 

[desertrat1974]

03 E350 7.3l Turbo Issue

I am having same issue, though not throwing codes. Mine makes very little boost till 2200 or so rpm. By 2400 it seems to be making full boost. In overdrive it just wont cut it. I couldnt pull a birthday balloon 65 mph down hill in o.d. Turbo wheel looks fine and is zero play . Going to clean and inspect boots today,but not optimistic about that. If there were leaks causing lack of boost,wouldnt the turbo whine still be audible at 1500/1600 rmp.? Idont here it even trying till 2000.

I am having the same issue. I have not been able to figure it out then again I am ...less than a novice. Does anyone have anymore suggestions?