big milage drop
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Laughing Gas
Joined: Jul 2003
Posts: 893
Likes: 8
From: Lincoln, Nebraska
big milage drop
I went from getting 17-19 down to 13 same roads same speed and its been doing this for awhile now. Have changed oil fuel filters air filter boost runs around 10 use to run around 4. Very seldom it will smoke a little blue/whiteish smoke at idle and puffs a good cloud when taking off only will puff when it smokes at idle. Any ideas what it might be ford said there is nothing wrong
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Laughing Gas
Joined: Jul 2003
Posts: 893
Likes: 8
From: Lincoln, Nebraska
I have the scan gauge 2 I forgot they did say the egr was a slight fail nothing to worry about they said. Yea everything is motorcraft except the oil which is mobile 5-40 full syn. Where would the EBP sensor be. Coolant temp is around 185 delta is around 8. No codes. What is IAT & CAC last time I had EGR problems I had a code that set my next trip with it i'm going to unplug the egr and see what happens
Hotshot
Joined: Apr 2010
Posts: 19,056
Likes: 235
From: Saratoga Springs,UT
IAT= Intake Air Temp
CAC= Charge Air Cooler
Program SGII for BARO,MAP,EBP note there value at KOEO should be within 0.5psi of each other these sensor are used to control turbo output
I dont get an EGR slight fail if the part is in question then clean or replace definatly could be the Issue here
Bad MPG could honestly be alot of diffrent things just going to have to work your way threw trouble shoot
CAC= Charge Air Cooler
Program SGII for BARO,MAP,EBP note there value at KOEO should be within 0.5psi of each other these sensor are used to control turbo output
I dont get an EGR slight fail if the part is in question then clean or replace definatly could be the Issue here
Bad MPG could honestly be alot of diffrent things just going to have to work your way threw trouble shoot
Thread Starter
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Laughing Gas
Joined: Jul 2003
Posts: 893
Likes: 8
From: Lincoln, Nebraska
Ok I'll program those and see what it says and post back. if there was a crack in the CAC or one of the boots wouldn't I see a decrease in boost and not am increase. My next trip home with it I was going to unplug the EGR valve. The ford tech said the EGR had a slight fail and not worth changing not real sure what he meant by that. I'll take it out to and clean it.
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Laughing Gas
Joined: Jul 2003
Posts: 893
Likes: 8
From: Lincoln, Nebraska
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Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
EBP sensor on an 06 is probably mounted about halfway down the drivers side valve cover lower edge. It has a steel tube that runs from the exhaust manifold to it's botton and wires to the top. It's fairly easy to remove it and the tube and make sure they're "clean" and the tube isn't plugged. The MAP sensor is mounted just above the HVAC box on the passenger side. It has a rubber tube that runs from the passenger side intake manifold to it and the nipple in the intake gets plugged. Check both for an obstruction. Not much you can do to the sensor itself although nothing you've said really indicates it's failed.
I wouldn't recommend unplugging the EGR valve but I would recommend removing and cleaning it. I don't know about the "slight fail" on the EGR valve either. That sounds kind of hinky to me.
You didn't say exactly how long your mileage has been down. It could also be from reflashing the computer and winter blend fuel. Lots of contributing factors make that hard to diagnose.
I wouldn't recommend unplugging the EGR valve but I would recommend removing and cleaning it. I don't know about the "slight fail" on the EGR valve either. That sounds kind of hinky to me.
You didn't say exactly how long your mileage has been down. It could also be from reflashing the computer and winter blend fuel. Lots of contributing factors make that hard to diagnose.
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Thread Starter
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Laughing Gas
Joined: Jul 2003
Posts: 893
Likes: 8
From: Lincoln, Nebraska
It started back in October. Even last winter my lowest was 16 but usually around 18. According to my scan gauge the EBP seems to be higher then it was before the milage went to hell. It dropped within a tank
I'm hitting easy street
Joined: Nov 2009
Posts: 6,395
Likes: 27
From: Central Oregon
Ok, I'll join in here. My mileage also is lower. At first I was thinking winter fuel. But maybe it is not. So, I want to start trouble shooting.
BAR 14.3
MAP 14.5
EBP 14.6
Now, at one point I had done a video and someone pointed out my VGT was too high for "hot" idle. I do not remember noticing that reading prior to that. (just didn't pay that much attention to it.)
VGT "hot idle" reads 85. Cool start up, (50* ECT-EOT), VGT reads 77.
New EGR valve last September.
Cruising the highway, runs around 38-45. (As close as I remember, will get better readings Tuesday)
I can not get more than 13.7 highway. I know I was pushing 16.5 - 17.0 last summer.
BAR 14.3
MAP 14.5
EBP 14.6
Now, at one point I had done a video and someone pointed out my VGT was too high for "hot" idle. I do not remember noticing that reading prior to that. (just didn't pay that much attention to it.)
VGT "hot idle" reads 85. Cool start up, (50* ECT-EOT), VGT reads 77.
New EGR valve last September.
Cruising the highway, runs around 38-45. (As close as I remember, will get better readings Tuesday)
I can not get more than 13.7 highway. I know I was pushing 16.5 - 17.0 last summer.
Hotshot
Joined: Apr 2010
Posts: 19,056
Likes: 235
From: Saratoga Springs,UT
Here is a little something I noticed Guys when my truck was down 50miles per tank of fuel My ECT was running 173*
when I got the new thermostat in I got the 50miles per tank back so gettiong it up to proper temp is Fairly important for proper combustion.
I would have never thought ECT would affect my MPG like that but it did
something for you guys to check thats easy anyway
when I got the new thermostat in I got the 50miles per tank back so gettiong it up to proper temp is Fairly important for proper combustion.
I would have never thought ECT would affect my MPG like that but it did
something for you guys to check thats easy anyway
Cargo Master
Joined: Mar 2007
Posts: 3,103
Likes: 32
From: AB/BC
So you holding the couch down this afternoon then?
Hotshot
Joined: Jul 2005
Posts: 13,834
Likes: 25
From: Middle Tn.
I have the scan gauge 2 I forgot they did say the egr was a slight fail nothing to worry about they said. Yea everything is motorcraft except the oil which is mobile 5-40 full syn. Where would the EBP sensor be. Coolant temp is around 185 delta is around 8. No codes. What is IAT & CAC last time I had EGR problems I had a code that set my next trip with it i'm going to unplug the egr and see what happens
I'm hitting easy street
Joined: Nov 2009
Posts: 6,395
Likes: 27
From: Central Oregon
Maybe later, DVR will do it's job today.
Grand Daughter is having a bridal shower/wedding shower/party today.
Grand Daughter is having a bridal shower/wedding shower/party today.