6.0L Power Stroke Engine and DrivetrainDiscussion of the 6.0L Power Stroke diesel engine and drivetrain in the 2003-Up Super-Duties and Excursions. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.0L Power Stroke engine.
Here is the story, on my way to the desert, I was crusing up the mountains towing my toy hauler doing 50mph and boostin around 30 psi. I heard a loud pushhing sound, like I blew off a charge pipe. The boost drop to 15-20 psi. It pushhing sound, like I blew off a charge pipe. The boost drop to 15-20 psi. It was all down hill from there (to my destination ).
I waited till the next morning and checked all the hoses and pipes, no cracks or pipes that came loose. Well I head home and up the hill my boost was between 10-15psi (which took a while to buid up to). Halfway home there was no boost, 10-15psi (which took a while to buid up to). Halfway home there was no boost, a big loss in power, and i could still hear the turbo spoolin.
Next day I took all the charge pipes and hoses off and clean rhem up good and reinstalled them, no difference. I think the vanes need a cleaning, but before reinstalled them, no difference. I think the vanes need a cleaning, but before do that, I would like to hear suggestions
what your describing does sound like a cac tube blew off. is there a tune on the truck? 30 psi is high for a stock truck. the 03 should be in the 24 range. did you check the tube under the air filter? that one usually is the second most common to come off and its the hardest to see. i'm assuming you would have noticed the one on the turbo if it was off. another thing to check is your up pipe connection. i've seen a couple times where those have broken from heat enough to cause low boost in the turbo due to not enough exhaust going through the turbo. it doesn't sound like your vanes are sticking. normally that will cause an overboost and lack of power condition. you would have noticed this without the trailer. hope tyhis helps.
what your describing does sound like a cac tube blew off. is there a tune on the truck? 30 psi is high for a stock truck. the 03 should be in the 24 range. did you check the tube under the air filter? that one usually is the second most common to come off and its the hardest to see. i'm assuming you would have noticed the one on the turbo if it was off. another thing to check is your up pipe connection. i've seen a couple times where those have broken from heat enough to cause low boost in the turbo due to not enough exhaust going through the turbo. it doesn't sound like your vanes are sticking. normally that will cause an overboost and lack of power condition. you would have noticed this without the trailer. hope tyhis helps.
No tune on the truck. Without the trailer hitched, the truck 25- 27 psi. As soon as I have a heavy load the truck boost goes between 27 - 30 psi. I took off all the charge pipes, silicon hoses and check for cracks or any other signs of a leak... nothing. Put everything back on and truck still not boosting. I do not hear a exhaust leak but I am in the process of removing the turbo and i will check the up pipe for any cracks.
so i pulled the turbo and the vanes are not sticking, but i plan to clean anyways since its off. but as i was checking out the vgtcv, it didnt seem to move as easily as i thought it would, it actually feels stuck, is this normal? any comments or ideas? i included a pic of what i am talking about. please correct me if i am wrong
The piece circled in the top pic is the part that makes the vanes move. If it is sticking or does not move freely, that is your problem. It should move smoothly and freely. You need to clean that up and possibly even replace those parts.....
__________________ 2003 Toreador Red/Arizona Beige CC, DRW, Lariat, FX4, 6.0 PSD, Torqshift, born early Feb. 03, AIC, MBRP turbo-back exhaust, Tuning by Tony Wildman (Total Diesel Performance), ARP studs & some "other" work done by River City Diesel, AFE PG7, Fumoto valve, B&W hitch, Di-Pricol gauges, Voyager brake controller, DIESELSITE Coolant filter, Timbrens, Rancho RSXs, Michelin XPS Traction's, a whole bunch of "bling", Connex 4300hp, JL Audio 275w amp w/ 12" sub, Alpine door and rear seat speakers.
i would suggest getting a good carb cleaner and soaking the turbo with it. it looks like you got a lot of rust in there. then take a small buffing wheel with a scotch brite pad on it and make sure the turbo is nice and smooth as well.
i habe seen the inter cooler pop like a radiator on the side tank making that much boost if you can access a smoke machine that is the best way to check for a blown intercooler it also can be a vgt issue
I had 2 hoses blow off then the last time the gasket around the intercooler blew out. That is very hard to see. Once I had it out it was easy to see the damage, the back right side end cap was separated from the intercooler, but while it was in the truck I could only see a small bit of the orange gasket sticking out
all my hoses and pipes and intercooler is fine. the truck has no boost. i just cleaned the turbo and vanes. they move easily by hand now. took it for a test drive and still no boost. how can i test the control valve on the turbo? i dont want to spend 340 if i dont have to.
Batteries were disconnected and removed during the turbo removal. Any other way of testing the vgt control valve? Also, what is the likely hood of the vgtcv piston being stuck?
I have never seen the actuator piston be stuck but with the amount of rust on your turbo, anything is possible. Frankly, if that has happened, you would probably be better off to simply replace the turbo...
You don't clean the VGT solenoid. You replace it. The replacement will have a screen on it where the oil goes into it. This screen will keep the junk out of the solenoid.
__________________ 2003 Toreador Red/Arizona Beige CC, DRW, Lariat, FX4, 6.0 PSD, Torqshift, born early Feb. 03, AIC, MBRP turbo-back exhaust, Tuning by Tony Wildman (Total Diesel Performance), ARP studs & some "other" work done by River City Diesel, AFE PG7, Fumoto valve, B&W hitch, Di-Pricol gauges, Voyager brake controller, DIESELSITE Coolant filter, Timbrens, Rancho RSXs, Michelin XPS Traction's, a whole bunch of "bling", Connex 4300hp, JL Audio 275w amp w/ 12" sub, Alpine door and rear seat speakers.
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2003 Toreador Red/Arizona Beige CC, DRW, Lariat, FX4, 6.0 PSD, Torqshift, born early Feb. 03, AIC, MBRP turbo-back exhaust, Tuning by Tony Wildman (Total Diesel Performance), ARP studs & some "other" work done by River City Diesel, AFE PG7, Fumoto valve, B&W hitch, Di-Pricol gauges, Voyager brake controller, DIESELSITE Coolant filter, Timbrens, Rancho RSXs, Michelin XPS Traction's, a whole bunch of "bling", Connex 4300hp, JL Audio 275w amp w/ 12" sub, Alpine door and rear seat speakers. 
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