My 2008 6.4 has 5000 miles on it and the EGR valve needs to be replaced. Just waiting on parts right now. Is this problem widespread with the 6.4 or is this somewhat of a random failure? Has anyone had a recurring problem with the EGR, like some radiator issues? My truck doesn't seem to regen very often, every 300-500 miles. No mods, just fuel conditioner every tankful. Other than this issue the truck runs great and pulls a load better than my 7.3's even with mods.

 

2008 F250 6.4L Job 2 with 25,000 miles, plowed two winters, more idling than recomended. Truck ran great on the way to work, wanted to leave and no more than 5 MPH, maybe 1200 RPM, then it chokes and returns to running smoothly at idle. Towed yesterday and waiting for a new EGR housing, it's so full of coke they needed to order the housing and valve. Down today and tomorrow if parts come in.

 

haven't really heard of many problems. most realize that with the emissions on these newer trucks you really cannot idle them for long periods.

I you work it and run it then your egr will be ok

 

How did you find out the EGR valve was bad, did it throw a code or did you describe what was going on to the service tech. what were the symptoms the truck was having

 

Check Engine light came on. Used my Edge Insight to retrieve the code and identify it. Also, the truck would surge with change in exhaust sound at steady speed or light acceleration like on a slight hill. If you floor it, it runs fine, but around town it would surge. Still showing normal boost and MPG. Took it in to dealer, they checked it and ordered a new egr valve. I dont know if it was a problem with the valve physically like deposits, or if the electronics that operate the valve went bad. My truck is a job 3 and this is the first glitch. Never idle. Start it and go. Tail pipe is completely clean. Regens about every 300 miles or so for about 20 minutes. No other driveability issues. If I get any more infor when I take it in for replacement of valve I will post it. I bought the truck from an out of town dealer for a $2,000 better deal. Took it to the dealer here in town and was treated excellent. Took the truck in, they had a tech on it within 25 minutes, took him about 20 minutes to do his thing, determine exact cause, check all systems for any other issues, and hand my keys back to me. Said the parts will be here in two days, they need the truck for 2-3 hours, will take me wherever I want to go, or they will pick truck up, repair it and bring it back. Can't complain about that.

 

PSDx3
Thanks for the input I have the same problem, comes and goes I will have the service center look at it.

 

Buddy of mine with the identical truck I have except his is Job 2, mine's a 1. He was driving along, temp gauge pegged quickly, engine sputtered and died. He states that there was no warning what so ever.

Towed to dealer, EGR cooler blew, filled #8 cylinder with coolant. I'm told the dealer is sending the engine to Ford.

Now, this buddy of mine is very difficult to trust. Took him 5 months to figure out what the puddle of water under the left front was, you know, the leaky radiator most of us went through. So I don't know if he truly had no warning and I don't know enough about the EGR system to know if it is capable of filling a cylinder with coolant.

Anybody know about this? Any tips to watch for, any advanced warning if this could happen to any of us? His 6.4 is stock and has about 60K on it, lots of average towing weights.

 

good questions. I truely think that if you work the motor at hwy speeds you will have less issues.

My understand of the egr system. It reciruates a percent of exhaust gases back into the intake system.

Emissions 101. This is to reduce the pollutants that go out the pipe.

On the the 6.4 and others the percentage of egr is determined by the amount needed because of the epa. Hence more egr, worse mileage.

Since we are dealing with oil burners the egr gases have to be cooled down before re-introduction into the intake so that is where the coolers come into play.

That is also why the egr valve can get stuck, carbon buildup from the exhaust gases.

so my thoughts are the harder you run it, the better you are.

I may be off base but that is my understanding.

 

My EGR went at 31,000. I idled a fair bit, long periods of time not very often. Guess I'll have to quit that, but with the redesign maybe not? I have some time to figure that out before the final warranty runs out.

 

You have the 08 6.4. Then idling is not the best because of the emissions...unless you have the high idle on the truck.

 

Why is excessive idling not recommended on the 6.4's? What is considered excessive?

 

Check engine light came on and took to dealer and they are claiming that the aftermarket AFE stage II air cleaner is the reason for not allowing the regen to cycle all the way. Has anyone heard of this problem?

 

Baloney, Regen is dependant upon you driving long enough to complete the task.

 

very common problem on untuned trucks, it wont go away.....

 

Correct me if I'm wrong...but I thought high idle only solves the problem of an incomplete burn resulting in fuel slipping past the rings into the crankcase. I don't think high idle will prevent EGR clogging