Engine Builders talk.
Senior Member
Joined: Jun 2013
Posts: 4,165
Likes: 19
Senior Member
Joined: Aug 2013
Posts: 10,354
Likes: 105
From: Virginia
Aye ive been lookin for ya. I saw an old thread about EGR's and did you delete yours?
And would you or anyone else recomend deleteing the EGR, i have a programmer to make up for that in the computer, but ive been chasing a P0174 code for quite some time, and my truck vibrates at idle i dont have a spark misfire that i know of but when idlein in park i have like a pop sound coming thru the pipes but when in drive with my foot on the brake it runs more evenly and theres no pop, the scan tool at the shop said all my spark plugs an o2 sensors are working correctly i dont have cats at all any due to one of my precats knocking, i used to be running only precats back into a Y pipe at the rear axle no muffler or big cats but i had this problem then too, changed the intake manifold gaskets 3 times thanks to BS gaskets from advanced that caused a coolant leak, ford gaskets solved that. New pcv valve an hose tree. Im stumped at this point i want to try new injectors but i dont have the money to spend on that due to needing tires soon
And would you or anyone else recomend deleteing the EGR, i have a programmer to make up for that in the computer, but ive been chasing a P0174 code for quite some time, and my truck vibrates at idle i dont have a spark misfire that i know of but when idlein in park i have like a pop sound coming thru the pipes but when in drive with my foot on the brake it runs more evenly and theres no pop, the scan tool at the shop said all my spark plugs an o2 sensors are working correctly i dont have cats at all any due to one of my precats knocking, i used to be running only precats back into a Y pipe at the rear axle no muffler or big cats but i had this problem then too, changed the intake manifold gaskets 3 times thanks to BS gaskets from advanced that caused a coolant leak, ford gaskets solved that. New pcv valve an hose tree. Im stumped at this point i want to try new injectors but i dont have the money to spend on that due to needing tires soon
Senior Member
Joined: Dec 2015
Posts: 23,203
Likes: 8,625
From: Utah
I agree, check that intake for cracks and warping. Air leaks are really easy to miss on these things. I suggest getting a mixture of Dawn and water in a spray bottle and spraying around the mating surface. See if you can see bubbles and the mixture creeping in.
EDIT: Or you could smoke the intake.
EDIT: Or you could smoke the intake.
Last edited by white89gt; Mar 21, 2016 at 12:21 PM.
Senior Member
Joined: Aug 2013
Posts: 10,354
Likes: 105
From: Virginia
And I hate to ask this, but did you follow the right torque sequence for the manifold bolts and torque them to the proper spec? There is a specific order they have to be torqued in or it can cause sealing or warping issues
98 F150 5.4L E40D/4R100
Joined: Nov 2006
Posts: 28,534
Likes: 7,638
From: MI
PSD's
7.3 or better yet the 6seven
My mistake, but hey , I see a lot of F150's w/ SD tailgates lol.
Wish they had a reason to bring back the 7700. I think it would sell, - if it was equipped with a new F150 diesel.
7.3 or better yet the 6seven
My mistake, but hey , I see a lot of F150's w/ SD tailgates lol.
Wish they had a reason to bring back the 7700. I think it would sell, - if it was equipped with a new F150 diesel.
98 F150 5.4L E40D/4R100
Joined: Nov 2006
Posts: 28,534
Likes: 7,638
From: MI
Adding another stage to the torque down sequence doesn't hurt.
