Turbo over boost
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Turbo over boost
My trucks turbo shut down engine light then came on. took it to the dealer they said fault code shows a turbo over boost cause it to shut down. Manager said its due to my 4 inch magna flow exhust. He said exhust does not provide enough back pressure? Has anybody had this problem? Thanks.
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From: 3rd Rock
Re: Turbo over boost
Originally posted by gravvy
My trucks turbo shut down engine light then came on. took it to the dealer they said fault code shows a turbo over boost cause it to shut down. Manager said its due to my 4 inch magna flow exhust. He said exhust does not provide enough back pressure? Has anybody had this problem? Thanks.
My trucks turbo shut down engine light then came on. took it to the dealer they said fault code shows a turbo over boost cause it to shut down. Manager said its due to my 4 inch magna flow exhust. He said exhust does not provide enough back pressure? Has anybody had this problem? Thanks.
Boost and EGT?
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yes A pillar 3 gauge with boost. will go to about 30 psi. What' s to high of a reading? Also running afe air box and the edge chip. I took that out before the dealer trip.
Last edited by gravvy; Jan 14, 2004 at 02:38 PM.
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My service manager was trying to tell me that my 4" magnaflow system just barely reads within specs on the backpressure reading.I haven't experienced a problem with the turbo overboosting, But maybe I'm losing some boost pressure due to a leaky turbo inlet pipe. I am waiting for the parts to come in to have it fixed.Everything that I read about aftermarket exhaust, lead me to beleive that the 6.0 (or any diesel) needed to flow better. Now that I have installed the exhaust,It seems like it's flowing too much! Maybe we can install an orifice plate with a 1" hole inline with the muffler!
Last edited by seaplane; Jan 14, 2004 at 02:55 PM.
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From: 3rd Rock
There are a couple of ways of creating/building HP in diesels. Adding fuel, turbo efficiency,
which includes both air in and air out. Ford has built a ton HP in this motor by maximizing all of the parameters………including the exhaust. The 7.3 gained by changing down pipes and such, Ford learned this, from the aftermarket public………..then built the “smart” into the system at design of the 6.0. So far, to date no one has come forward with any dyno sheets that prove different exhaust make any more HP on the 6.0.
Now if I fork out 500/600 dollars for a part you will have a tuff time telling me it did not make a difference in performance.
This is the “butt factor” the less in your wallet, the more you feel the performance in your butt. Problem is my butt is not a dyno, nor can I get any paper work out of it. I for one have not seen any change except in sound, and do not think I do not like the sound on trucks with 4/5’ pipes. The reality of backpressure affecting the 6.0 is REAL.
We need real dyno pulls to prove this.
which includes both air in and air out. Ford has built a ton HP in this motor by maximizing all of the parameters………including the exhaust. The 7.3 gained by changing down pipes and such, Ford learned this, from the aftermarket public………..then built the “smart” into the system at design of the 6.0. So far, to date no one has come forward with any dyno sheets that prove different exhaust make any more HP on the 6.0.
Now if I fork out 500/600 dollars for a part you will have a tuff time telling me it did not make a difference in performance.
This is the “butt factor” the less in your wallet, the more you feel the performance in your butt. Problem is my butt is not a dyno, nor can I get any paper work out of it. I for one have not seen any change except in sound, and do not think I do not like the sound on trucks with 4/5’ pipes. The reality of backpressure affecting the 6.0 is REAL.
We need real dyno pulls to prove this.
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Just Left my performace shop, there code machine shows the same fault code egr multi fail. and turbo over boost 3 gear spiked at 40 psi and turbo shut down. Contacted a different dealer (performace shop refered) Code shows egr senor failed needs replaced thats whats causing over boost, not the exhust although i did put the cat back on and incresed back pressure. I'll send the truck back to the shop i hope this takes care of it.
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From: 3rd Rock
Originally posted by gravvy
Just Left my performace shop, there code machine shows the same fault code egr multi fail. and turbo over boost 3 gear spiked at 40 psi and turbo shut down. Contacted a different dealer (performace shop refered) Code shows egr senor failed needs replaced thats whats causing over boost, not the exhust although i did put the cat back on and incresed back pressure. I'll send the truck back to the shop i hope this takes care of it.
Just Left my performace shop, there code machine shows the same fault code egr multi fail. and turbo over boost 3 gear spiked at 40 psi and turbo shut down. Contacted a different dealer (performace shop refered) Code shows egr senor failed needs replaced thats whats causing over boost, not the exhust although i did put the cat back on and incresed back pressure. I'll send the truck back to the shop i hope this takes care of it.
Go to this thread, read completely…. and post. Follow, on page 3..MLF250’s format, it is good…and easy!
Important update to instructions on page 6, 17 posts down from the top of page.
ODOMETER reading at time of problem is critical.
In addition, please read more instructions, bottom of first page, posted by Tim L
Tell as many as you can about this thread.
The simpler the writing (posting) of “problem/odometer” reading………….the easier it will be to collate. Do not need many words. I must reduce all the date into a usable format; extra words will take more time to complete.
https://www.ford-trucks.com/forums/s...hreadid=185570
Thanks
Tim
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So, Is the EGR sensor failing because of the lesser back pressure of the exhaust? It's interesting that Ford changed the design on the Turbo down pipe from the '03 to the '04 engines. The '03 had the flat sided "D" shaped pipe with the built in baffle chamber and insulation wrap. The '04 is un wrapped and round. I haven't heard if it has the baffle in it or not. The 4" magnaflow system actually doesn't have a 4" down pipe off of the turbo. It is a 3.5" untill it gets to the bottom of the down pipe , and then it expands up to 4" . Here is a pic of a cross section of my stock down pipe after I replaced it. I had to cut it to get it removed from the truck. If I had the '04 pipe, I probably would have just went with a catback system. The '03 has one ugly down pipe- <img src="http://prod.bsis.bellsouth.net/coDataImages/p/Groups/9/9865/folders/7173/792288Mvc-021f.jpg" width="470" height="352">
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I had my truck in for the emissions recall today and to get the Dec or latest flash.
The shop guy checked out my truck and said that it was making 24.3 lbs of boost which was right in spec.
From what he was saying 30+ lbs sounds kind of high
Daryl
The shop guy checked out my truck and said that it was making 24.3 lbs of boost which was right in spec.
From what he was saying 30+ lbs sounds kind of high
Daryl
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I was wondering what sort of boost increase you are supposed to get with one of those programer modules , Like the Predator or Edge? Isn't a higher boost pressure ,one of the main adjustments that those programers give you? I had also read that since ford had started putting an EGR on their diesel, The soot factor would lead up to premature failure.
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From: 3rd Rock
Originally posted by King Ranch
I get about 23 to 24 lbs with my foot to the floor. This is why I went with the cat-back system , they say that variable vane turbo needs some back pressure
I get about 23 to 24 lbs with my foot to the floor. This is why I went with the cat-back system , they say that variable vane turbo needs some back pressure
Did you install?
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From: 3rd Rock
Originally posted by King Ranch
I installed the Banks Monster exhaust from the cat back. Me and a buddy did it in a little over an hour in his shop. My EGT dropped 150 degrees.Alot quicker response from the turbo too.
I installed the Banks Monster exhaust from the cat back. Me and a buddy did it in a little over an hour in his shop. My EGT dropped 150 degrees.Alot quicker response from the turbo too.
Did you use a lift or on the floor?