EGR valve removal help

[itsgt]

Hi guys,

I got a check engine light, did a check on the code and it came up as a 71....which is the EGR system. After reading around, people recommend to clean the EGR Valve of carbon particles.

So I decided to do so. So far I unplugged the rubber hose on top of the egr valve, unplugged the small house going to the modular filter, I unscrewed the two nuts holding the valve to the engine. I also unscrewed the two large nuts around the metal pipes that are located one at the bottom, and one on the left side.

But at this point I am stumbled, the egr valve is not budging out of position...am I doing something wrong? I'd like to take it out to clean it....

any pictures/instructions would really help!

thanks in advance!
--VP

 

[jhinderliter]

if you got all the mounting hardware off and lines disconnected...hmmm sounds like you need a hammer...

 

[MickeyMouse]

This may sound stupid, but where is the EGR Valve located? Could someone post a picture?

 

[mikes4runner]

This may sound stupid, but where is the EGR Valve located? Could someone post a picture?

Here...

 

[mikes4runner]

Here...

You should have this vacum hose diagram on the hood also.

 

[itsgt]

thanks for the help...
i eventually got it off, there was actually one more screw all the way at the bottom connected to engine that was holdoing a black plate over the piece on the left hand side pipe which attached to the egr valve. DW40 was my best friend, lots of tugging, pushing taking it off and back on, its so tight.

Not sure why toyota designed it this way...but oh well.

thanks again everyone!

 

[MickeyMouse]

Thanks Mikes4r, even if I looked at the diagram, I don't think I could find it without a picture. You could hand me 5,000 lines of C++ code and ask me to find something and I could, but when it comes to mechanics... ugg! I'm trying hard to do all my own work when I can, but it will only go so far before it rolls into the Toyota shop.

 

[mikes4runner]

thanks for the help...
i eventually got it off, there was actually one more screw all the way at the bottom connected to engine that was holdoing a black plate over the piece on the left hand side pipe which attached to the egr valve. DW40 was my best friend, lots of tugging, pushing taking it off and back on, its so tight.

Not sure why toyota designed it this way...but oh well.

thanks again everyone!

Next time try a good penetrating oil like PB instead of WD40 might help and also let it set and work itself in for a day.

 

[mikes4runner]

Thanks Mikes4r, even if I looked at the diagram, I don't think I could find it without a picture. You could hand me 5,000 lines of C++ code and ask me to find something and I could, but when it comes to mechanics... ugg! I'm trying hard to do all my own work when I can, but it will only go so far before it rolls into the Toyota shop.

5000 lines of c++ code

 

[MickeyMouse]

C++ is a computer programming language that you vreate applications with.

 

[Bryan]

Did cleaning your EGR valve take care of your code 71? I am getting the same code so I am letting you do the trouble shooting for me. LOL I was also wondering when you took the hard line off of the bottom of the engine, did you need a new gasket when you put it back on? Did you have too do someting to reset the check eng. light? Thanks for any help you can give me. Bryan

 

[bills86e]

How-to reset ECM

Pull the EFI 15 amp fuse, wait 20 sec and back in. The CEL should not be on. It may return, if so, install an in-line 10k resistor in the egr wire.

 

[Diverse4runner]

Hmm..Ive completely removed the EGR and put block off plates and I have no CEL. I put blocks on the vacuum connections as well.

 

[bills86e]

Did doing that accomplish anything?

 

[2ndGen4runner4x4]

2004?... Holy ancient thread revival Batman!

 

[dakrause]

Thanks, it was a surprisingly easy fix:
-Order $65 OEM replacement off Ebay ($24 part was described by Ebay seller as correct for my car, but was different part number and problem soon reappeared)
-Unclip old vacuum modulator diaphragm(thanks ATGParker!) and disconnect three hoses.
-Connect the three hoses to replacement, clip in.
-Disconnect car battery for a minute (see my old posts for the reason I cannot just take out the 15 amp EFI fuse).
-Start car, notice that engine idles nicely and the check engine light is gone.

Here is a picture of the new and old valve side-by-side:

 

[ATGParker]

Thanks, it was a surprisingly easy fix:
-Order $24 part off Ebay
-Unclip old EGR valve and disconnect three hoses.
-Connect the three hoses to new EGR valve, clip new valve in.
-Disconnect car battery for a minute (see my old posts for the reason I cannot just take out the 15 amp EFI fuse).
-Start car, notice that engine idles nicely and the check engine light is gone.

Here is a picture of the new and old valve side-by-side:

If it was three hoses it was the EGR's vacuum modulator diaphragm that you replaced not the EGR valve.:thumb: