So I'm 2 days into the project of installing pace setter long tube headers in my 4.6 2wd and it completely sucks. Drivers side was a breeze. Passenger side on the other hand was a pain. I couldn't get a socket or wrench on one of the bottom nuts because part of the motor mount was obstructing it. I had to separate the two pieces and un bolt the part of the mount that bolts to the engine to provide clearance. I then had to unbolt the trans mount and jack the engine/trans up several inches to get the header to clear, then had to drop the engine so the header would bolt up. It's resting on the bell housing where the starter mounts barely but everything is tight. Working on O2 sensors tonight and getting everything buttoned up. Pics to come.

 

That's why I won't do it until I have to pull the engine. I'm too frustrated of a mech to screw with stupid angles and extracting bolts. I'm almost to the point in my life where I may start to just pay shops to mod my stuff. lol

 

^ I'm already there lol. I think my lift was the last big thing I did to my truck before I started having the shops do everything.

 

With age comes wisdom.

There are things that I know are worth shelling out the cash to have a shop do. Like oil changes and any exhaust work on 10+ year old vehicles. .

 

So I have mixed feelings about them. Great deep tone. But it ticks. But I can't tell if it's a leak or if it's just the fact that it's open headers and I'm hearing everything.

Also, not sure if this is related to egr or not but if I rev it in neutral or park it'll come back down and almost die before catching again. I have the egr turned off in the tune. Does that sound egr related to you guys or air fuel ratio. The oxygen sensors are right by where they exit (for now) and might be the culprit.

 

If they are ticking, they are loose. I hope you used steel gaskets with permatex copper on both sides. You'll have to tighten them once or twice but then be done forever

 

Link to the LT headers? I never found some for the 4.6 2wd... Maybe you can provide some pics?

 

I wouldn't be surprised if it was an exhaust leak, what has me a little thrown off is that it sounds like it's coming from under the truck close to where the headers dump.

I used 5.4l headers from pace setter. Got em off Amazon for less than 300 bucks.

Question though. What are my options to make the egr function. I don't necessarily want to delete it. I have the bung in the header plugged and the egr turned off in the tune.

Can I use an egr tube off of a 5.4? Or is it completely different? Could I use a whole egr setup off a 5.4?

Thanks for the help

 

After a few miles of driving, the codes p0171 and p0174 have come up. I'm going to guess that this is because the O2 sensors are three inches from fresh air causing it to read that there's too much oxygen in the exhaust