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Old 10-03-2010, 06:03 PM   #1 (permalink)
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Red face Ford F250 Sudden loss of power and then it's back

Truck: 2006 F250 6.0 Diesel - Original Owner

Coming up (going up hill) to my house the other day I noticed that from low rpms to 3000 rpms my truck stopped boosting, and then would jump to 25psi all the while making a very loud `whine` sound. The whine sounded like an extra hydraulic fan kicked on, or something of that nature. I`m no engine guy so I really have no clue It was not hot at all, and the truck had been running < 45 minutes. I've heard this suond before but only when I`m towing something heavy uphill for longer than 5 minutes.

After 2 minutes the truck seemed to be functioning normal again. This is the 2nd time something like this has happened but the first that it lasted so long I could notice it wasn't boosting.

My truck is still under warranty but I`d like to know what to expect / ask about.

Thanks!
-Todd
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Old 10-03-2010, 06:22 PM   #2 (permalink)
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I wonder if it is the waste gate opening up and staying open
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Old 10-03-2010, 06:26 PM   #3 (permalink)
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Quote:
Originally Posted by Todd W View Post
Truck: 2006 F250 6.0 Diesel - Original Owner

Coming up (going up hill) to my house the other day I noticed that from low rpms to 3000 rpms my truck stopped boosting, and then would jump to 25psi all the while making a very loud `whine` sound. The whine sounded like an extra hydraulic fan kicked on, or something of that nature. I`m no engine guy so I really have no clue It was not hot at all, and the truck had been running < 45 minutes. I've heard this suond before but only when I`m towing something heavy uphill for longer than 5 minutes.

After 2 minutes the truck seemed to be functioning normal again. This is the 2nd time something like this has happened but the first that it lasted so long I could notice it wasn't boosting.

My truck is still under warranty but I`d like to know what to expect / ask about.

Thanks!
-Todd
VGT turbo going south?
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Old 10-03-2010, 06:32 PM   #4 (permalink)
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VGT turbo going south?
Thats what I would expect. Sounds like the unison ring is sticking.

Edit: Any codes for low boost pressure?
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Old 10-03-2010, 06:38 PM   #5 (permalink)
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No CEL, no error messages.
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Old 10-03-2010, 07:32 PM   #6 (permalink)
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Unison ring sticking or egr screwing up. EGR would set a code, the VGT doesn't usually. Pull the turbo apart and clean it, then make sure you have the latest reflash, it helps keep the ring from sticking.
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Old 10-03-2010, 07:51 PM   #7 (permalink)
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If it happens again out of warranty, this is the cleaning procedure. http://www.forddoctorsdts.com/articl...icle-06-05.php
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Old 10-20-2010, 01:36 PM   #8 (permalink)
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They found 2 problems so far.

1. Fuel Injection Control Module - Even though my ford warranty has expired (5 years since purchase) it's somehow covered under some replacement something another... so they are replacing this at no cost to me, and then going to see if there are power problems/issues as I described still.

Anyone heard of this?
Would it cause the symptoms I mentioned previously?

2. Exhaust manifold leak. Not covered under any ford warranty/recall. Will find out if under my extended warranty after #1 is fixed, and if #1 did not solve original issue. Basically, he described it as wanting to call 1 time for all extended warranty issues.

Is this a common problem too?
What normally causes this?

My truck still has under 50k miles on it, and my repairs within the last 15 months are starting to get ridiculous
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Old 10-20-2010, 01:58 PM   #9 (permalink)
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My buddy owned a 6.0 L for 1 year, and put about 10,000 miles and 12,000$ of repairs to the motor on it, then sold it for 8000$ less than what he paid for it. We told him not to buy it!
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Old 10-22-2010, 02:59 PM   #10 (permalink)
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Supposed to pick it up today but after sitting 2 days while they worked on it the tech didn't like how it was starting (Taking forever), and thinks the high pressure oil? pump is going out or some other sensor another problem anyway, it should fall under my warranty too so as long as they can fix it all with 1 deductible go for it.. but jeesh talk about issues on a near new engine.
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Old 10-23-2010, 06:43 AM   #11 (permalink)
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The 6.0's have a hand full of problems that need to be addressed. Here is what I did to my 6.0 at 100K. After this I would not trade the truck for anything, but that's my personal opinion.

Up-pipe scoop removed
SCT tuner w/ Inn. Diesel tunes
EGR delete
Oil cooler rebuild
Cooler drain screen
High pressure pump rebuilt
High pressure STC replacement
High pressure stand pipe upgraded
High pressure dummy plug replacement
Turbo disassemble and cleaning, inspect unison ring
Turbo drain back tube upgrade
Head inspection for cracks and warp age
Exhaust manifold gasket upgrade
Injector seals replacement
Victor head gaskets
ARP studs set to 240 ft lbs
Oil cooler rebuild
VC-9 Coolant Flush

Since I did all this the truck has been problem free for the last 10k miles. I run straight Rotella-T oil and Stanadyne fuel additive. I get 19-22 mpg on the highway. I have pulled up to 14500lbs with out problems.

Also we did all this to the truck with the cab left in place.
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Old 10-24-2010, 01:08 PM   #12 (permalink)
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Yeah, not really wanting to dump all that $ into the tow-rig.
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Old 10-25-2010, 07:56 AM   #13 (permalink)
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Depending on your mechanic skills it does not cost very much. I did everything list myself for 1950.00. Of course if you have it all done by a shop, your looking at more like 5-7000.00.
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Old 10-25-2010, 08:28 AM   #14 (permalink)
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FICM will cause similar symptoms. Just helped a friend of mine troubleshoot his on his 03. You can test the voltage on it. If it is below a certain level it is bad. Don't remember the exact numbe rit was something like 45 volts. He sent it out and had it repaired. They just pull it apart and re-solder some connections. Got it back and it runs like new. Strarts much faster and has more power.
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Old 10-25-2010, 11:04 AM   #15 (permalink)
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FICM will cause similar symptoms. Just helped a friend of mine troubleshoot his on his 03. You can test the voltage on it. If it is below a certain level it is bad. Don't remember the exact numbe rit was something like 45 volts. He sent it out and had it repaired. They just pull it apart and re-solder some connections. Got it back and it runs like new. Strarts much faster and has more power.
anything under 44 volts
however it could also be wire harness chaffing
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Old 10-25-2010, 06:48 PM   #16 (permalink)
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Just got a call today about something else they are fixing...

"STC Fitting" I believe is what he said on the phone. Something another in the high pressure pump for injection wears out (snap ring was said sometime in this convo) and causes bypass or low pressure or something for hard starts, and he has to remove the turbo to get to this item and replace it.

This was the mechanic the service rep handed me off to who rambled on, so taking notes was challenging.

So in the shop another 2-3 days apparently.

Was told all under warranty.
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Old 10-25-2010, 09:04 PM   #17 (permalink)
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Damn sucks to hear...you should go read the other guys horror 6.0 story here in the tow rig section to make you feel better...or more aware. It's also funny how some Ford owners yea my truck runs awesome now after this and this modification...IT SHOULD RUN AWESOME FROM THE FACTORY
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Old 10-26-2010, 11:33 AM   #18 (permalink)
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It's also funny how some Ford owners yea my truck runs awesome now after this and this modification...IT SHOULD RUN AWESOME FROM THE FACTORY
+1

I should not have to spend that much money on a pickup just to turn around and dump more money into it to get it to run right and be reliable because stock it sucks and will break! I dont care who makes it Ford, Dodge, Chevy, etc. If it doesn't run right from the factory I have major issues with even considering that vehicle for purchase.

But I will say after all of the GM & Chrysler bailouts I am for the first time ever looking into possibly purchasing a Ford, but definitely not a 6.0 PSD.

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Old 10-26-2010, 07:54 PM   #19 (permalink)
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I agree with you guys, I feel bad for the people who bought the 6.0's without knowing the issues. Ford did try some to make things right, but eventually just gave up.

When I bought my 6.0 I knew what I was getting into. I choose it because I love Fords and did not want a dmax or cummings. If I was not able to do the needed upgrades myself, I would have not bought it.
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Old 10-27-2010, 03:11 PM   #20 (permalink)
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anything under 44 volts
however it could also be wire harness chaffing
Not trying to sharp shoot, I think it's actually 48V.

Here is a link to the 6.0L board on FTE. They will sort this out for you, guranteed. http://www.ford-trucks.com/forums/forum107/

Have little faith in the rig. Address EGR (delete it), have your oil cooler checked (replace or rebuild), flush the coolant and get a coolant filter. Bryan has a good list of good upgrades when ya have the time/cash. The biggest killers are the ones I just mentioned. Studs can be a crap shoot. Seen plenty of stockers blow em. I'm running an aftermarket turbo, a 130HP tune, and some other minor goodies, and mine are holding strong.
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Old 10-28-2010, 05:32 PM   #21 (permalink)
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ford has an updated high pressure pump output fitting, thats what their putting on, its not related to your no-boost problem though, theres a tsb for the exhaust maniflod leak it comes with new gaskets. turbo wont usually stick if its a DD their cool trucks once the egr is deleted along with new oil cooler. ive seen them go 300K+
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Old 10-28-2010, 06:01 PM   #22 (permalink)
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ford has an updated high pressure pump output fitting, thats what their putting on, its not related to your no-boost problem though, theres a tsb for the exhaust maniflod leak it comes with new gaskets. turbo wont usually stick if its a DD their cool trucks once the egr is deleted along with new oil cooler. ive seen them go 300K+
That makes sense.

They said they are replacing the gasket... it's not under any recall, only my extended warranty, along with the fitting.

Hoping it's working good after this
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Old 10-29-2010, 05:01 PM   #23 (permalink)
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ford has an updated high pressure pump output fitting, thats what their putting on, its not related to your no-boost problem though, theres a tsb for the exhaust maniflod leak it comes with new gaskets. turbo wont usually stick if its a DD their cool trucks once the egr is deleted along with new oil cooler. ive seen them go 300K+
Yeah I have seen these trucks with 300K plus too. When I pulled mine apart at 100K and the cross hatches were not worn at all.
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Old 10-30-2010, 10:39 PM   #24 (permalink)
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Hey, well, I deal with the 6.0 on a daily base. A very common problem is EGR issues, mainly the cooler cracking and leaking coolant into the intake. But another EGR issue, that sounds like your problem, witch could, or couldnt throw a CEL, it should on a '06 but not always, is the EGR valve sticking open, therefore allowing drive pressure to bypass the turbo and go right into the motor.

A very common thing that people assume, is that there is a wastegate on these trucks. NO 6.0 came with a wastegate turbo. Aftermarket, possably. I am not trying to sell you anything, just helping, I would either get rid of the EGR system, or clean the valve very good and see if you can repeat the issue.

You can visit our website and email either me or another one of our techs. Let me know if you have any more questions.

The 6.0 is actually a good motor, once the bugs are worked out...
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Old 11-05-2010, 11:01 AM   #25 (permalink)
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had the same problem on a truck at work, replaced the fuel pump and cleaned out the gas tank and the screens on the sending unit. good as new now
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