cleaning egr valve.

[elieleb1303]

if its not too much trouble, can someone post a pic of exactly where the egr valve is? ive looked through the egr posts i could find, but none said or showed where the valve is, most of them where were to locate the tube coming off the valve to do the egr delete..

im only asking cause ive had terrible problems with my engine, to the point where mazda said i need a new one, but refuse to cover it under warranty, then they went and voided my warranty..so i want to try to do as much as a i can to try to salvage what is left of my engine by doing some general maintenence(sorry, spelling is off), and i want to try to clean my egr valve as i was getting a cel for it..

thanks and any help would be greatly appreciated..

 

[Mistersix]

http://www.ugnius.lt/mazda/

look around in this. hope it helps.

 

[Mistersix]

http://www.ugnius.lt/mazda/Files/Mazdaspeed 6 Technical Training.pdf

more direct link!

 

[elieleb1303]

you are a gentleman, and a scholar. lol thanks man

 

[elieleb1303]

actually that might have confused me more..the diagram in there says its to the left of the turbo..but when i look at my engine bay i wanna say its to the right i think? like right in front of the brake booster line?

 

[elieleb1303]

ok i found it..now another question..do i need to drain the engine coolant when removing the egr valve??

 

[elieleb1303]

yes? no? maybe?

 

[Mistersix]

not sure on the actual procedure man, and i didnt actually look over the diagram. i just had that saved for just such things. maybe someone else can chime in. i'll look it over in the meantime.

 

[wannabe]

EGR = exhaust gas recirc (nothing to do with coolant)

 

[Mistersix]

i figured as much. i was thinkin there was maybe a coolant pipe in the way and thats why he asked.

if one were to do this, shouldnt ya just go head a toss a occ on there while your at it?

 

[jkunze]

EGR = exhaust gas recirc (nothing to do with coolant)

There is a coolant line connected to the bottom of the EGR valve, which means that it probably gets the coolant from the head and it drains out the bottom of the EGR through that tube, so yes, you probably will need to drain the coolant. You will need to remove the inner cooler, battery, battery tray, and intake up to the turbo to get access to it though.

I haven't seen any good documented procedure or pictures of an EGR removal, so if you did this, it would be a great asset to the MS community.

 

[wannabe]

There is a coolant line connected to the bottom of the EGR valve, which means that it probably gets the coolant from the head and it drains out the bottom of the EGR through that tube, so yes, you probably will need to drain the coolant. You will need to remove the inner cooler, battery, battery tray, and intake up to the turbo to get access to it though.

I haven't seen any good documented procedure or pictures of an EGR removal, so if you did this, it would be a great asset to the MS community.

hm. i hadn't noticed that. i pulled up the pdf, and sure enough it looks like it runs through the EGR. i have only worked on the EGRs on cars that are non-turbo, and just assumed it was a similar setup. apparently the coolant runs through that as part of the turbo cooling.

you probably still don't *need* to drain it, but it wouldn't hurt. if you are up around 30,000+ miles flush and fill would be coming up in the somewhat near future anyway.