Lawn edger ? Hahaa , I will try that one - if I ever decide to edge mine

Okay, yep got off track here, it was tritons fault, he started the hole thing with his throttle body cleaning methods. Next, he probably say he cleans his MAF with it too ...

Glad to here it's running better bullseye, cleaning ports out make a big difference . I hope you had the battery disconnected , you prolly did. , so it's going thru motions -learning and setting. It will run even better in a couple days. Allot good info about that you can find here -

http://www.obdii.com/drivecycleford.html

Good luck

 

Go ahead, blame me, everyone else does.

Naaaaaah, never use a PW to clean a TB, only the elbow. The elbow contains the egr passages, not the TB. The TB has seals and bearings on the butterfly that I doubt would take kindly to a PW. You need to clean those manually, or better yet, replace it with a bigger one. hehe. I have really considered having one of these stocker 4.6 all aluminum intakes extrude-honed just to see if it makes much of a difference with carbon buildup. I doubt the 5.4's would fare well with that with their plastic lowers. But hell, it's worth a shot and it's only money, right?????

Having an EGR system that's not working properly, and having one that's completely non-functional are two different things. The computer makes changes to the fuel map to allow for EGR function. EGR gasses displace fresh oxygen rich air with non-combustible gasses. It just takes up space. When the EGR system is active, the computer must decrease the amount of fuel injected to allow for the lower level of oxygen in the charge. If your EGR system is spotty and unreliable, the computer is still making those adjustments. Without EGR gasses in the charge, but with the fuel map changes still in place, what you end up with is just a very lean mixture. That can cause pinging, random misfires, driveability problems, etc. The same thing happens if EGR flow is too high. The computer is managing the fuel map by taking into account a certain amount of oxygen displacement, and if there's too much non-combustible gasses, the fuel/air ratio will be rich, and the motor will be starving for air. You will have low power levels, a chugging motor, problems with it stalling, etc. IMPO, the biggest problem with the stock EGR system is its crappy reliability, **** poor metering accuracy, and even worse reliability of problem diagnoses. An EGR system can be completely clogged and flowing nothing, but the computer might miss that entirely and still operate the engine under the assumption that the EGR is working properly, and completely ignore the mixture problems recorded by the O2 sensors and misfires recorded by the knock sensor. Quite frankly, the misfire reporting and EGR problem reporting on these OBD POS's is spotty at best. You're really lucky if your throw a code AT ALL!!! And that really sucks because all you can do at that point without taking it in is to just start throwing parts at the problem! This is why I clean the EGR system, replace the valve and DPFE as a matter of regular maintenance rather than just mess with it when undiagnosable problems arise. I have never in my life seen any engine suffer from carbon buildup as bad as these little 4.6's. The only engine I have ever even seen come close is the 3.8l 6's that came in the Windstars before they redesigned the valve covers. And even then, that was only because the breather was blowing oil straight into the intake! The only thing they did was put in a baffle and it cured it. But the carbon was such a problem on those engines that it built up in the cylinders and caused a bad knock when the piston slammed in the the ring of s^^t on the cylinder walls, and you had to pull the heads to fix it! The EGR system is off whenever you are at WOT, so the max HP is not affected whether the EGR is plugged or not. If the EGR system is entirely removed or purposely plugged, the computer will adapt to that if it's reset and you won't have any issues (other than maybe the emission police).

To be honest, a lot of the "little things" that we have to continually endure with these engines is inexcusable. These 4.6' and 5.4's (excluding the 3 valve 4.6 GT motors, and 5.4 truck) have remained essentially unchanged for a very long time (10 years) aside from some small improvements (like COP, PI heads, etc.). There is no reason in the world why any of them after the first couple years should still suffer from these same chronic problems. It is nothing but laziness and poor engineering on Ford's part. Look at COP, there's no reason in the world they should still be failing all the time after such a long period of time has passed where they could have fixed it. Or the EGR problems, the plug spitting Windsors, the insane amount of carbon in the intake, etc. etc. etc. All of these problems that have plagued essentially every model year and were never fixed. That's just not excusable in my book. Let's look at GM and the Vortech V8's around 96. They were plagued with intake gasket failures. Was it fixed in later years? Yep. But if it was Ford, a brand damn new truck would have the same problem!

If you are mechanically inclined, it's no bid deal. But if you're not, or are otherwise unable to do your own maintenance, just trying to keep one of these trucks running right will literally cost you a small fortune every year. That is so ****** unfair it's not even funny. But I digress.

 

Hi!!


So that EGR - I can chuck it all , total elimination? I want know , because the dang things always in the way!! I keep a supply on hand -



When it gets in my way, I don't think twice about getting the Tigersaw for a little slice and dice. I can never get the damn thing off!! So I cannibalize - I can get my Ingersol on those nuts then lol.

It would be nice to do away with it, period!