Increased MPG by 6-13% by cleaning EGR passages!

[Baltothewolf]

No its absolutely great, I love to hear info like this!

[HybridGates]

Ok, how do you actually clean the egr valve passages?

[Xist]

Once you remove the EGR valve cover:

you twist a drill bit with your fingers to scrape out the carbon deposited in the top. I do not know how deep it goes. Many then recommend twisting pipe cleaners in there, although I worry about the fibers coming loose. We use pipe cleaners to clean our weapons in the Army. I think they are for cleaning tobacco pipes; I would definitely recommend these over craft ones, which are not designed for cleaning at all.

Unfortunately, you can get fat and\or long craft ones (that disintegrate easily), but a normal [tobacco] pipe cleaner is only about 6" long. I do not know how deep the carbon gets deposited and I used black pipe cleaners, but you could always try something like this "bore snake." Coil Pipe Cleaner - Pipes and Cigars

There is much more information here: http://ecomodder.com/forum/showthrea...-hx-22824.html

I should revise my first post to make it more comprehensive.

[ChillyBear]

Oven cleaner works well too.
This is a big problem for a lot of fords. Although they often have an exhaust pressure sensor or a dpfe fail/get stuck before the passages get dirty. This has a big effect on throttle response and fuel economy for ford 1.9, 2.0, sohc's.

I check my egr system out more often than my plugs.

[HybridGates]

Originally Posted by Xist

Once you remove the EGR valve cover:

you twist a drill bit with your fingers to scrape out the carbon deposited in the top. I do not know how deep it goes. Many then recommend twisting pipe cleaners in there, although I worry about the fibers coming loose. We use pipe cleaners to clean our weapons in the Army. I think they are for cleaning tobacco pipes; I would definitely recommend these over craft ones, which are not designed for cleaning at all.

Unfortunately, you can get fat and\or long craft ones (that disintegrate easily), but a normal [tobacco] pipe cleaner is only about 6" long. I do not know how deep the carbon gets deposited and I used black pipe cleaners, but you could always try something like this "bore snake." Coil Pipe Cleaner - Pipes and Cigars

There is much more information here: http://ecomodder.com/forum/showthrea...-hx-22824.html

I should revise my first post to make it more comprehensive.

Alrighty then, but is there a version for the second generation? I have that one and its more a tube like thing then a plate.

[Xist]

The second generation was 1972 - 1979. Before the HX, you are right, there was not a plate. I cannot find a good DIY, but from what I have read, you remove this:



and spray everywhere with carb\brake cleaner, etc. Some people put grease on a drill bit and tap out those plugs, inserting plugs for future convenience.

Hopefully someone more knowledgeable will be able to provide more help!

[HybridGates]

Originally Posted by Xist

The second generation was 1972 - 1979. Before the HX, you are right, there was not a plate. I cannot find a good DIY, but from what I have read, you remove this:



and spray everywhere with carb\brake cleaner, etc. Some people put grease on a drill bit and tap out those plugs, inserting plugs for future convenience.

Hopefully someone more knowledgeable will be able to provide more help!

Oh, ahhahaha, I meant the second generation hybrid. Probably should have worded that better. THe HCHII 2007. I recently got a reconditiong kit from hybrid automotive, and hopefully that will up my mpg to 50 as im only getting like 35 mpg. town and highway. The erg valve is a kind of tube, and I think I might be able to clean it with the solvent spray I use for cleaning throttle body, however I would at least like to see some pics as I have never done this before.