Does EGR need modded for headers
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Tuned
Joined: Feb 2007
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From: Kingman, Ks
Does EGR need modded for headers
I will be putting some headers on my pickup soon and need to know if I will need to do anything with the EGR. To me it looks like the EGR tube comes from the inside (underneath upper intake) of the driver's side head then goes under the upper intake and over to the EGR valve. I thought the EGR came from the exhaust manifold, or did they change it, because I have nothing going into either of the exhaust manifolds.
So does all of this seem right, and I won't have to do anything with the EGR when putting headers on?
Pickup specs in signiture.
So does all of this seem right, and I won't have to do anything with the EGR when putting headers on?
Pickup specs in signiture.
Posting Guru
Joined: Feb 2007
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The EGR tube goes from the passenger side of the upper intake manifold and down to the front of the passenger side exhaust manifold. The stuff on the driver's side is the AIR injection stuff related to the smog pump.
As long as you buy a set of header made for your truck and set up for EGR, the EGR tube will connect to the passenger side header. The PaceSetters on my truck have an EGR connection on the front of the passenger side header. The only thing I had to do was bend the EGR tube a little bit to connect to the header.
If you buy a set of header that are not EGR compatible you will have to either modify the passenger side header to except the EGR tube or delete the EGR system.
The AIR system on the other hand will have to be disconnected to accomodate headers. This is pretty easy and there are a lot of threads in this forum on how to do so, search for "smog pump delete".
As long as you buy a set of header made for your truck and set up for EGR, the EGR tube will connect to the passenger side header. The PaceSetters on my truck have an EGR connection on the front of the passenger side header. The only thing I had to do was bend the EGR tube a little bit to connect to the header.
If you buy a set of header that are not EGR compatible you will have to either modify the passenger side header to except the EGR tube or delete the EGR system.
The AIR system on the other hand will have to be disconnected to accomodate headers. This is pretty easy and there are a lot of threads in this forum on how to do so, search for "smog pump delete".
FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
On the 5.0 the EGR does not connect to the exhaust manifold at all, so you don't have to do anything to it. On the 5.8 it does, why in blazes Ford couldn't do it the same way on both motors boggles the mind... same reason they couldn't use the 5.0 intake with a different lower portion for the 5.8 I guess. Who knows..
Posting Guru
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Thats interesting, I did not know that the EGR was different between the 5.8 and the 5.0. I have a friend that had a 94 F150 with the 5.0, but he had eliminated all of his emissions equipment, so I guess I have never worked on a 5.0 that was not already been tampered with.
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Tuned
Joined: Feb 2007
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From: Kingman, Ks
Thanks Conanski, thats what I needed to know. I figured I wouldn't have to worry about doing anything just needed someone to confirm it. I was looking at pictures of your setup and saw the egr pipe entering a primary tube on the passengers side and that threw me off so I decided I'd better ask and see.
Yeh, I don't understand either why they have to change different things from one motor to the other, even though they are basically the same motor. Oh well, I won't complain it seems to work either way so I won't worry about it.
Yeh, I don't understand either why they have to change different things from one motor to the other, even though they are basically the same motor. Oh well, I won't complain it seems to work either way so I won't worry about it.
FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
Yep.. that's on the headers I had on my 5.8, I welded on a fitting for the EGR tube. The same set of pics has some of the 5.0 setup I did last summer and they may not all be identified clearly so I can understand your confusion.
New User
Joined: Jan 2010
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So what LT headers for a 351 come with the egr tube bung welded on? And if you welded one on yourself, wouldn't it crack( kinda a bad spot?)
And can you take the egr out? wouldn't that throw codes and make it run funny?
And can you take the egr out? wouldn't that throw codes and make it run funny?
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FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
The EGR system can be disabled without setting a code on earlier trucks but if you have one with the DPFE version it cannot.
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New User
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I have a 95 F-150 ext cab 4x4 351. I bought it for $50 cad. LOL it's a decent truck but needs some tlc. The cats r plugged and it blew my manifold gasket out on #8. broke the stud to. So if i'm in there fixing it, should do it right and put LT headers. I'm going with the flowtechs because of price( 3x what i paid for the truck lol) but i didn't know what to do about the egr. So can a take it out? Or just plug the tube and leave it in? And does someone make O2 foolers for these trucks? And would you recommend them?
FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
No.. you cannot eliminate the main O2 sensor, it has to be in the exhaust and connected for the EFI to work correctly. I had a muffler shop weld on a bung on the first set I bought after test fitting the passenger header to get the right angle and marking the location. Also be sure to drill the hole before having the bung welded on.
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