New to me...........
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Cargo Master
Joined: Aug 2004
Posts: 3,455
Likes: 8
From: Williams Lake B.C.
New to me...........
Well Ive had a V-10 , wore out a 7.3 still got a 6.4 and just bought a 6l.
How can I tell if the head bolts and EGR has been done on the 6L?
It has 240,000 kms (144,000 miles) on it, hoping its already been done.
Its a 2003
How can I tell if the head bolts and EGR has been done on the 6L?
It has 240,000 kms (144,000 miles) on it, hoping its already been done.
Its a 2003
Postmaster
Joined: Jan 2005
Posts: 4,424
Likes: 12
From: BC Canada
On the front of the heads, beside valve covers there are some head bolts showing, they have bolts or nuts on a stud? EGR you will have to look at the intake for a plugged in EGR and see if you see the EG cooler of the exhaust or if it was deleted. Look at the coffee table in the tech folder for your year.
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Cargo Master
Joined: Aug 2004
Posts: 3,455
Likes: 8
From: Williams Lake B.C.
On the front of the heads, beside valve covers there are some head bolts showing, they have bolts or nuts on a stud? EGR you will have to look at the intake for a plugged in EGR and see if you see the EG cooler of the exhaust or if it was deleted. Look at the coffee table in the tech folder for your year.
thanks Ill look in tech folder.
So which kind of means they have been changed , bolts or studs?
I should be able to see the EGR?
I'm hitting easy street
Joined: Nov 2009
Posts: 6,395
Likes: 27
From: Central Oregon
Look under the degas tank for a stud or bolt. Here is a picture of a stud.
Then, if you look behind the hot side CAC tube you will see the EGR cooler in the other picture. The part with the hand written numbers on it, is the EGR cooler. Some have done a "Stealth delete". Only way to tell on those is to remove it and look.
Then, if you look behind the hot side CAC tube you will see the EGR cooler in the other picture. The part with the hand written numbers on it, is the EGR cooler. Some have done a "Stealth delete". Only way to tell on those is to remove it and look.
Thread Starter
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Cargo Master
Joined: Aug 2004
Posts: 3,455
Likes: 8
From: Williams Lake B.C.
Look under the degas tank for a stud or bolt. Here is a picture of a stud.
Then, if you look behind the hot side CAC tube you will see the EGR cooler in the other picture. The part with the hand written numbers on it, is the EGR cooler. Some have done a "Stealth delete". Only way to tell on those is to remove it and look.
Then, if you look behind the hot side CAC tube you will see the EGR cooler in the other picture. The part with the hand written numbers on it, is the EGR cooler. Some have done a "Stealth delete". Only way to tell on those is to remove it and look.
So the picture shows a stud but a bolt with a nut on it is what we want if its been done?
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Postmaster
Joined: Jan 2005
Posts: 4,424
Likes: 12
From: BC Canada
Correct, head studs are turned into the hole, the nut is torqued down on the stud. In theory, better holding power than a bolt, which the head stretches to a yield point when torqued down.
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Cargo Master
Joined: Oct 2003
Posts: 2,833
Likes: 4
From: Jefferson, Iowa
Look under the degas tank for a stud or bolt. Here is a picture of a stud.
Then, if you look behind the hot side CAC tube you will see the EGR cooler in the other picture. The part with the hand written numbers on it, is the EGR cooler. Some have done a "Stealth delete". Only way to tell on those is to remove it and look.
Then, if you look behind the hot side CAC tube you will see the EGR cooler in the other picture. The part with the hand written numbers on it, is the EGR cooler. Some have done a "Stealth delete". Only way to tell on those is to remove it and look.
I'm hitting easy street
Joined: Nov 2009
Posts: 6,395
Likes: 27
From: Central Oregon
You can see it by watching iat2 sensor and egr valve actual position pids. Iat2 temp will rise when the valve opens if the system is functioning. If the valve opens and iat2 does not change egr is blocked. Before doing this test clean the iat2 sensor. Iirc it is in the intake manifold behind the oil filter.
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