Does Unplugging the EGR Valve affect the cooling fan function or performance?
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From: Captain Cook, Hawaii
Does Unplugging the EGR Valve affect the cooling fan function or performance?
03' 6.0 must have been a late 03' build. Have been doing some reading regarding the unplugging of the EGR valve to minimize the oil, soot, and exhaust heat to the turbo. I did the check to see if the TB had a butterfly and mine does not. So I bolted everything back up and left the EGR valve unplugged. I had done some additional reading and I thought that besides throwing some soft codes to the PCM, that there might be an issue with the cooling fan functionality. I thought that I read that the EGR valve sends signals to the PCM that also controls the cooling fan operation. At this point I am not sure but I don't want to have a cooling issue due to unplugging the EGR valve.
Last edited by hakukamana; Apr 22, 2013 at 07:30 PM. Reason: Spelling
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Benny will likely be along soon, but if I remember right the early engines aren't as effected by disconnecting the EGR as later engines.
IMHO, it would be better to go ahead and use an SCT tuner to shut the EGR off and leave the EGR connected.
Josh
IMHO, it would be better to go ahead and use an SCT tuner to shut the EGR off and leave the EGR connected.
Josh
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From: Saratoga Springs,UT
yes it affect fan
even those with egr deleate need the egr valve plugged in for proper fan operation
UNPLUGGED EGR VALVE AND THE PROBLEMS THAT FOLLOW
https://www.ford-trucks.com/forums/9...egr-valve.html
even those with egr deleate need the egr valve plugged in for proper fan operation
UNPLUGGED EGR VALVE AND THE PROBLEMS THAT FOLLOW
https://www.ford-trucks.com/forums/9...egr-valve.html
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Josh
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From: Captain Cook, Hawaii
OK now I think I am going to get an education, what is the vane cycle at idle. What is a vane cycle period? I thought that the turbo either spooled and added boost or it rested and did not add boost. I didn't realize that it had some type of computer controlled cycle. Is that what I am understanding?
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From: Breckenridge, TX
The actuator on the turbo sweeps the vanes from open to closed to open at idle to check function. If you google Youtube videos for 6.0s with cat and muffler deletes, you can hear it sweep sometimes when they first start the truck.
Starts around 53 seconds:
<iframe width="560" height="315" src="http://www.youtube.com/embed/JodMHiJofWI" frameborder="0" allowfullscreen></iframe>
Starts around 53 seconds:
<iframe width="560" height="315" src="http://www.youtube.com/embed/JodMHiJofWI" frameborder="0" allowfullscreen></iframe>
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From: Saratoga Springs,UT
Its been awhile since I read the link I posted
But IIRC I Dont think it mentions anything about the Turbo Vein Sweep not working with EGR Valve unplugged
Thanks for you imput
Im thinking the Best thing is to do a PROPER EGR Deleate and Leave the EGR Valve plugged in to keep the PCM Happey
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From: Adrian, Mi
Huh? Had mine unplugged for some time now and didn't notice any performance issues. I plan on doing my delete I hope this summer since I believe my EGR cooler hose is leaking. I don't think mine has the blue hose update yet. Can the EGR be pulled and the plate put on without doing the delete kit?
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From: Saratoga Springs,UT
OK now I think I am going to get an education, what is the vane cycle at idle. What is a vane cycle period? I thought that the turbo either spooled and added boost or it rested and did not add boost. I didn't realize that it had some type of computer controlled cycle. Is that what I am understanding?
YES you are correct
The Older PowerStrokes had a Waistgate that the PCM could open to dump excess Boost Pressure
The 6.0L Has the Newer VGT Controled Turbo to control Boost Pressure
The VGT Valve Moves the Veins in or out depending on whats needed
------------------------------------------------------------------
Here is a pic of the Veins on the Exhaust side turbo
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here is the unisone ring the VGT Valve moves the ring inturn it Moves the Veins OUT to Grab More Exhaust and increase Boost or In to reduce Boost
----------------------------------------------------------------------
The veins Guide the exhaust over the Turbine wheel what SPins to Compress intake air on the Cold side turbo
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From: Captain Cook, Hawaii
I thought the whole issue of the EGR valve being unplugged was the oil, soot, and hot exhaust gases that were being drawn & mixed into the turbo. I also was of the understanding that if the EGR valve was shut then none of the crap was going into the turbo. Also no hot air going in to the turbo, cooler air going in from the inter-cooler better performance. I just went down stairs and plugged my EGR valve back in. Do I need to clear the codes or will they go away on their own?
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I thought the whole issue of the EGR valve being unplugged was the oil, soot, and hot exhaust gases that were being drawn & mixed into the turbo. I also was of the understanding that if the EGR valve was shut then none of the crap was going into the turbo. Also no hot air going in to the turbo, cooler air going in from the inter-cooler better performance. I just went down stairs and plugged my EGR valve back in. Do I need to clear the codes or will they go away on their own?
Nothing to do with the turbo.
Josh
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From: Saratoga Springs,UT
Huh? Had mine unplugged for some time now and didn't notice any performance issues. I plan on doing my delete I hope this summer since I believe my EGR cooler hose is leaking. I don't think mine has the blue hose update yet. Can the EGR be pulled and the plate put on without doing the delete kit?
No
In Fact when a EGR Deleate is Done Right the Little cover Plate get thrown in the Garbage
Hang on I am trying to find some info on this that will help you guys Understand how these Systems work and Flow
