high egts
Thread Starter
|
New User
Joined: Dec 2014
Posts: 13
Likes: 0
high egts
long time lurker first time poster...
heres the details: 2014 f350 6.7, 87000 miles
egr/dpf delete
cold air intake upgrade
cold side charge pipe/throttle body delete upgrade
coolant filter system
H&S minimaxx tuner
my issue is that using light to moderate pedal push (stock tune) accelerating to 40mph, im pushing 7-800 degrees, and the truck feels laggy. boost appears to be normal, all operating temps are up to normal. if I punch it, ill break 1000deg no problem. i am trying to figure out why this is happening "all of a sudden". Is this a clogged intercooler problem, if so what do I look for? is this an exhaust issue, looking at upgrading to a 5" downpipe back. I dont want to just throw parts at it, but im running out of ideas. Im hoping the answer is right in front of me, i just cant see the forest through the trees so to speak. any help would be greatly appreciated. thanks guys!
heres the details: 2014 f350 6.7, 87000 miles
egr/dpf delete
cold air intake upgrade
cold side charge pipe/throttle body delete upgrade
coolant filter system
H&S minimaxx tuner
my issue is that using light to moderate pedal push (stock tune) accelerating to 40mph, im pushing 7-800 degrees, and the truck feels laggy. boost appears to be normal, all operating temps are up to normal. if I punch it, ill break 1000deg no problem. i am trying to figure out why this is happening "all of a sudden". Is this a clogged intercooler problem, if so what do I look for? is this an exhaust issue, looking at upgrading to a 5" downpipe back. I dont want to just throw parts at it, but im running out of ideas. Im hoping the answer is right in front of me, i just cant see the forest through the trees so to speak. any help would be greatly appreciated. thanks guys!
Lead Driver
Joined: Jan 2010
Posts: 6,600
Likes: 84
If it's been fine, I don't know how the 4" exhaust would be an issue. How much boost do you know it is building? This description is very close to the stuck VGT vanes issue on a stock 2011 but in that case, boost is < 3 psi or generally nothing at all.
Thread Starter
|
New User
Joined: Dec 2014
Posts: 13
Likes: 0
High egts
Kper05,
boost builds to about 10psi, 15-18 if I punch it. Still on stock tune. After I get up to speed, be it highway or main road; the temps seem to level off. I have to pull a 9000# TT this weekend through grades, and I just want to make sure I’m not going to damage anything. If it is stuck vanes, how do I verify that, and is it an easy fix?
boost builds to about 10psi, 15-18 if I punch it. Still on stock tune. After I get up to speed, be it highway or main road; the temps seem to level off. I have to pull a 9000# TT this weekend through grades, and I just want to make sure I’m not going to damage anything. If it is stuck vanes, how do I verify that, and is it an easy fix?
Thread Starter
|
New User
Joined: Dec 2014
Posts: 13
Likes: 0
@senix thanks for the help, checked coolant, levels are good. Just had the main wiring harness replace because I wasn’t getting any power to pin 1 on the cooling fan power supply, rodents ate the wires 😡. So she’s got all new coolant and a new thermostat to boot. The more I read, I wonder if I’m ok. Hot air moves faster than cold, so if I keep trying to lower my egts, does this hurt at some point? Is the 5” exhaust more for show/sound? Or will it increase performance? Sorry with all newbie questions, my first diesel and I picked a real winner🤢
Super Moderator
Joined: Aug 2008
Posts: 37,379
Likes: 1,863
From: Frederick, MD
I don't think you will benefit from bigger exhaust. These motors typically like to run a bit hotter than older ones, they are more efficient in the range they have then from the factory.
Be sure you checked your secondary system.
Be sure you checked your secondary system.
Posting Guru
Joined: Oct 2013
Posts: 1,039
Likes: 2
From: NC
Dunno about your temps, but you should be able to build a lot more boost than this.
Trending Topics
Lead Driver
Joined: Jan 2010
Posts: 6,600
Likes: 84
Probably for the 2014's, rarely (a code) for the 2011's.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
Thread Starter
|
New User
Joined: Dec 2014
Posts: 13
Likes: 0
- Yes the “CAC” pipe is not factory. I’m not getting much boost, like I said, 10-15psi if I punch it. The EGTs seem to be slowly climbing, like there’s a blockage somewhere, she’s not breathing right. I know the previous owner idled the motor (no high idle switch) almost as long as he drove it. The egr was clogged. I am wondering if the intercooler by the battery is clogged as well? I don’t know where to to look for restrictions... any ideas?
Posting Guru
Joined: Nov 2010
Posts: 1,406
Likes: 3
From: Altoona, Ia
Check map sensor in the intake. When dirty or not working properly lots of goofy stuff happens.
Like over fuel or over boost. I’m sure under boost is possible
map sensor has messed up twice on my 19 so far. It’s a real pita
Like over fuel or over boost. I’m sure under boost is possible
map sensor has messed up twice on my 19 so far. It’s a real pita
Thread Starter
|
New User
Joined: Dec 2014
Posts: 13
Likes: 0
Andrew010-
holding pedal to the floor, boost won’t go above 20psi, stops dead. Egts, 1050, on stock tube, no load. travel at 65-70 I’m 775-850. It’s probably just in my head, but it seems high.
Thanks for all the help guys!
holding pedal to the floor, boost won’t go above 20psi, stops dead. Egts, 1050, on stock tube, no load. travel at 65-70 I’m 775-850. It’s probably just in my head, but it seems high.
Thanks for all the help guys!
Lead Driver
Joined: Jan 2010
Posts: 6,600
Likes: 84
I vote checking, maybe replacing the MAP sensor as well. A bad MAP sensor, in my experience, will cause the truck to run as if it were stopped up. It's a $70 sensor so I hate to recommend throwing parts at an issue but it is difficult to clean without damaging it (I tried that as well). I agree those numbers are high for cruising speed.
Thread Starter
|
New User
Joined: Dec 2014
Posts: 13
Likes: 0
I vote checking, maybe replacing the MAP sensor as well. A bad MAP sensor, in my experience, will cause the truck to run as if it were stopped up. It's a $70 sensor so I hate to recommend throwing parts at an issue but it is difficult to clean without damaging it (I tried that as well). I agree those numbers are high for cruising speed.
Thread
Thread Starter
Forum
Replies
Last Post
blkbest
1999 - 2003 7.3L Power Stroke Diesel
15
Feb 15, 2011 11:22 AM
tnardo
1999 - 2003 7.3L Power Stroke Diesel
31
Aug 10, 2008 08:27 PM