Turbo Hiccup Problem?
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Senior User
Joined: May 2005
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From: So. Cal.
Turbo Hiccup Problem (not turbo fart)
After 11,500 uneventful miles on my truck, 04 F350, CC, 4x4, something strange happened that I haven't seen discusssed here before. I was on my way back from a day trip to the desert pulling my toy hauler and when I got on the freeway and got up to about 65 mph the truck started making a weird noise. The only way I can describe it is that the turbo was making a hiccup noise every 5 seconds or so. Every time it happened, my boost gauge dropped from about 25 lbs. to 10 lbs. and then jumped back up to where it was. This happened about 5 or 6 times until I backed of the throttle and then it didn't do it again the rest of the way home.
This truck has had all the recalls done and runs great otherwise. But, another thing that happened about a week ago that may or may not be related to this hiccup problem is that the emissions light came on and stayed on for a few hours one day, but it hasn't come on since.
Any thoughts, ideas or similiar experiences? (no hiccup jokes please)
This truck has had all the recalls done and runs great otherwise. But, another thing that happened about a week ago that may or may not be related to this hiccup problem is that the emissions light came on and stayed on for a few hours one day, but it hasn't come on since.
Any thoughts, ideas or similiar experiences? (no hiccup jokes please)
Last edited by Mr. Sandman; Sep 19, 2005 at 12:49 PM.
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Joined: Jul 2005
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From: 21791
"turbo fart" turbo hiccup" "wa paa paa" same thing. it is normal for the type of VGT turbocharger used on the 6.0, as it does not have a wastegate. it is perfectly normal, but i know it doesnt sound too secure or durable. that is normal in extreme boosting conditions.
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Joined: May 2005
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From: So. Cal.
Thanks for the reply, but I don't consider this hiccup to be the same thing as turbo fart (which I've experienced as well during rapid deceleration while under load). I've driven this truck harder while towing with the boost gauge pegged and never had this issue before. Maybe this should be considered a surging issue, but then again, to me surging would be gaining acceleration not losing it completely for a split second multiple times in a row. Regardless, it's going into the dealer tomorrow.
Last edited by Mr. Sandman; Sep 19, 2005 at 05:37 PM.
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Joined: May 2005
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From: So. Cal.
Oh yeah, it lost power for a split second and the noise it made sounded like a turbo fart, but it sure didn't feel like one.
C'mon, anyone else? Techs? 102 views and no other opinions or similiar experiences?
C'mon, anyone else? Techs? 102 views and no other opinions or similiar experiences?
Last edited by Mr. Sandman; Sep 19, 2005 at 09:44 PM.
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Hi Mr. Sandman,
How wierd....I was just looking for this exact same thing as I had this happen on my last trip. It happened several times, but only on a slight grade at about 1800 RPM in high gear. Once I depressed the peddle enough to downshift, it went away. I was towing and the power was a noticable loss untill it down shifted. It didn't happen consistantly, and didn't seem too concerning.
How wierd....I was just looking for this exact same thing as I had this happen on my last trip. It happened several times, but only on a slight grade at about 1800 RPM in high gear. Once I depressed the peddle enough to downshift, it went away. I was towing and the power was a noticable loss untill it down shifted. It didn't happen consistantly, and didn't seem too concerning.
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Hey Sandman I've had this happen with my truck. I have an '05 F-250 6.0L and an 11klbs toyhauler. Occasionally when I have my foot to the floor going up a grade, the turbo will be running at 30lbs of boost and then blow off every 5 seconds or so. The noise it makes for me is the exact same as when I'm running with my foot in it and then back off quickly. Its not just the gauge cause the truck noticably loses power. The only thing I can think of the is that the ECM is going into protective mode cause something is running too hot and it intentionally blows off boost.
On the other hand, I've no idea why it would be running too hot (I have seen the coolant temp gauge move all the way to the top). I live in a mild climate and I've towed the same trailer up grade in 101 degree heat with my '04 F-150 and never had overheating problems.
On the other hand, I've no idea why it would be running too hot (I have seen the coolant temp gauge move all the way to the top). I live in a mild climate and I've towed the same trailer up grade in 101 degree heat with my '04 F-150 and never had overheating problems.
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Now that it interesting.....
I also had a problem with the temp guage almost maxing out at mild temperatures and not a real steep climb. I found out that the temp guages can be bad and cause a lot of clibration issues. There is a TSB on the guage and I'm having mine checked this week. Might not be related to the turbo fart, but I have had problems with the clutch fan, gauge, and turbo. None of which seem to be too serious, so I'm hoping it's just adjustments and gauges....
I also had a problem with the temp guage almost maxing out at mild temperatures and not a real steep climb. I found out that the temp guages can be bad and cause a lot of clibration issues. There is a TSB on the guage and I'm having mine checked this week. Might not be related to the turbo fart, but I have had problems with the clutch fan, gauge, and turbo. None of which seem to be too serious, so I'm hoping it's just adjustments and gauges....
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Same problem on my 05, on a hill towing or running empty, boost would drop and come right back. Ford changed EBS and later changed EGR valve still did it, I unplug EGR valve and have driven it about 1,500 miles and it hasn't done it any more, Just one other thing, when they took the EGR out to change it at 4,000 miles it was carboned super bad.
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From: 3rd Rock
Originally Posted by sandtoyz
Hey Sandman I've had this happen with my truck. I have an '05 F-250 6.0L and an 11klbs toyhauler. Occasionally when I have my foot to the floor going up a grade, the turbo will be running at 30lbs of boost and then blow off every 5 seconds or so. The noise it makes for me is the exact same as when I'm running with my foot in it and then back off quickly. Its not just the gauge cause the truck noticably loses power. The only thing I can think of the is that the ECM is going into protective mode cause something is running too hot and it intentionally blows off boost.
On the other hand, I've no idea why it would be running too hot (I have seen the coolant temp gauge move all the way to the top). I live in a mild climate and I've towed the same trailer up grade in 101 degree heat with my '04 F-150 and never had overheating problems.
On the other hand, I've no idea why it would be running too hot (I have seen the coolant temp gauge move all the way to the top). I live in a mild climate and I've towed the same trailer up grade in 101 degree heat with my '04 F-150 and never had overheating problems.
Must read if you own a 6.0
https://www.ford-trucks.com/forums/s...d.php?t=325000
See you on the boards.
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From: Oregon
There are alot of posts on this I have had the same thing happen and NO IT IS NOT A NORMAL OCCURANCE . I also recently had my tubo and EGR replaced and have had no problems at all with it (MAYBE THE TRUCK IS RUNNING ABNORMAL NOW). It would constantly do it when towing before and I have towed over 2300 miles since and it never did it. This turbo will experience a Fart or Burp when the boost gets high then letting of the throttle. But this problem is under acceleration and is definately not normal. One way to chek it is to unplug the EGR and see if it still does it if it does then it may be the turbo. Mine still did it after unplugging the EGR and eventualy the service dept. found the turbo vanes were sticking.
Good luck
Armon'e
Good luck
Armon'e
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From: Weatherford Texas.
Do you have a EGT gauge installed. I have heard (not expierenced(sp) it) that the computer will defuel if egt get too high. If I put my foot in it up hill pulling my trailer 11K I will get over 1200 deg, I will back it off.
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Enomra, how did you get your dealer to fix it if it was only while towing? My dealer (Kirkland, WA) here doesn't seem to want to do anything unless they can repro the problem. Do you know if there's a TSB or something on it? I didn't see anything in any of the information I could find. It doesn't occur all the time for me even when towing, but I'm worried its going to get worse.
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From: Other side of the sunrise
sandtoys, I had that problem up till about a couple of months ago. My local dealership advised that I disconnect my egr plug to see if it quits doing that chirp thing. It did work, disconnecting the egr plug. A couple of months ago, I went in for the latest flash (which I think was the one before last or two) and it fixed the problem by changing the shifting strategy to downshift slightly sooner. Have your dealership call the Ford Dealership in Carson City Nv to get the latest. Their Shop Foreman figured out mine and it has been working flawlessly since!!!
T
T
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From: Other side of the sunrise
Originally Posted by sandtoyz
too hot (I have seen the coolant temp gauge move all the way to the top). I live in a mild climate and I've towed the same trailer up grade in 101 degree heat with my '04 F-150 and never had overheating problems.
Once again, fixed! I'm one of the lucky ones to have a good 6.0 tech to deal with.Have your tech look up the TSB's for excessively high engine temps, and faulty instrument cluster.
T