Alright, I checked my EGR vaccum tube and that is faulty but it is something that I can just tighten up or is there something that I have to replace? It is leaking around where it connects to the upper plenum. It must be a major leak as I am losing a lot of power when starting out after coming to a complete stop. Any suggestions would be great! Thanks.

Does it feel loose? If so, then there are 2 bolts holding it up there....just tighten them. It may also be deteriorated/corroded at that spot. Replacements range from approximately $50 to $100.

good luck

Dave

Is this a common problem? And are the bolts easily accessible? This sounds like a relatively easy job.

costs about 2 cents

Take two pennies.
Grind the very edge on one side so they look like this
/=====\
take the egr pipe off.
Set one penny in each gasket between the pipe and the gasket.
Put it back together.
No more egr problems

wouldnt that just make it worse because then it would leave a large gap bigger than the leak I already have.

he is hinting that it would block it off
but it is sommon for them to crack right arround the flange, so im thinking thats your problem

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Rich AIM: ONE FAST 2M8

OK then what would you do if it were your car?....would you just tighten it or would you seal it with silicone or something?

i had mine come totally disconnected at the flange under the plenum... but then i remembered my old handy friend.... JB WELD! just mix some of that up and use it to seal up those nasty EGR tube leaks!!!

JB WELD, Duct Tape, and WD-40 are mans best inventions... next to the fiero that is

Goto the local junk yard and get a EGR off a Firebird or Camaro 2.8, they had one that would flex and holds up better than the factory stock ones. I did this to my 2.8 and it only cost me $3.00 for the part at a loacl Pick-and-pull junk yard. Just check your gaskets when you remove them, mine looked good so I reused them, thought that I might run into problems and have to replace them, but going on for 3 years and no problems yet.

This is a very common problem for 2.8's The EGR Tube breaks away from the upper plenum.
You can buy them from GM or The Fiero Store.
I have one for sale......If you need one $35.00 + ship
This is what they look like.......
-Michael

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so is it bad to block off the EGR system? what ups and downs does it have??

Ok heres something I need. I need step by step directions on how to replace the EGR tube. I have no idea how to do it and with it being so cold here right now, I want as little work as possible.

too bad you wernt here last week, i just did this for a guy and could have taken pics.

quote Originally posted by 1987 Trans Am: Ok heres something I need. I need step by step directions on how to replace the EGR tube. I have no idea how to do it and with it being so cold here right now, I want as little work as possible.

It's as easy as...

• remove the two bolts on the underside of the plenum, and the two bolts at the EGR valve;
  
• remove tube;
  
• install new tube (and gaskets if necessary), tighten bolts.

Seriously. There really is nothing to it. Don't over-tighten the bolts on the plenum side--it's aluminum.

Good luck starting the bolts which attach the tube to the underside of the plenum if you have big hands. Those of us who have removed the throttle body's heating lines have a bit more room to get at one bolt, but the other is nicely obstructed by the distributor.

Some would say that I cheated when I replaced my EGR tube. I took the whole dang plenum off, flipped it upside down on the bench, and installed the EGR tube while I could see where the bolts went. Mind you I got lucky when I separated the upper & lower plenums, and the gaskets were undamaged. YMMV.

Side note: You have another thread regarding a vacuum leak & the EGR tube, where someone mentioned taking the tube from a Camaro/Firebird 2.8/3.1 engine. If you go this route, you'll need to elongate the bolt holes in the end of the tube which you wish to mate up to the EGR valve (a dremel tool + a carbide cutting/grinding bit makes this easy). The bolt spacing on the Fiero's EGR valve is wider than that of the Firebird EGR valve.

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his: 1985 2M6 SE
poly'd, Koni'd, formula nose & factory sub

hers: 1984 2M4
all stock... so far ;)

I just took the whole MPFI system off my 85GT for carb conversion.

If you want the EGR tube, it is in good shape. $25 plus postal costs

Send me an email.

I tried JBWeld twice. It broke both times. Next I used liguid tape, a thick black coating for electrical connections. I figured it would have some "give" and flex enough. Wrong !

Then I remembered I had some heat shrink tubing that was for underground electrical cable. Slipped it over the end, put a propane torch to it, and it shrank down nicely. The tube had glue inside and it bulged out a little indicating a good seal.

I checked on the temperature specs on the tube and was told it is tested at 150 degrees Cent. for 16 hours. I think that would be a worse environment than the Fiero under plenium area. Mine has been on there about 2 months now and no leaks.

The tube is manufactured by Raychem, but I don't know the cost or where you could get some.

I just did the penny block on my EGR. I have no idea how you would get to the EGR without taking off the upper plenum.

I hacksawed the egr tube flush off the mounting points for it. Stuck a penny under it (with a little RTV to make sure no leaks), then bolted it back down. No more leaky EGR, or its ulgy friend EGR tube.

EDIT... Thanks for this tip buddycraigg, I probably wouldnt have thought to use a penny!

[This message has been edited by ManiMack (edited 01-14-2004).]

so is it a bad thing to block off the EGR system? What are the ups and downs of it? If its there it must have a purpose and if that purpose is not being met other problems could and probably will occure.

on the V6 the only times i've seen vacuum to the egr is at crusing speeds in top gear
(i'm doing some testing right now for another writeup)
it's for emisions and doesn't effect the performance of the car.

I have tried to get to it and have no luck. Its all intermixed and stuff and all the items i need to get to are bolted in the middle of nowhere. Anybody have pics or anything like that?

Try this again...........EGR TUBE!

Photo By JazzMan

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[This message has been edited by 2000RagTop (edited 01-15-2004).]

quote Originally posted by 1987 Trans Am: I have tried to get to it and have no luck. Its all intermixed and stuff and all the items i need to get to are bolted in the middle of nowhere. Anybody have pics or anything like that?

You cant get to unless you unbolt the upper intake. It takes a bit of time to get all the crap off to get to it. Plus you might have to deal with the gasgets after you take the plenum off.
Plan at least 3 hours if you havent done it before. Took me about 4-5 yesterday.... I was doing some other **** too though.
GL

I got the thing off but putting it back on is gonna be tough. 2000RagTop, if ya wanna come to Rapids and help me put a new one on, I will buy the part from you.

quote Originally posted by 1987 Trans Am: I got the thing off but putting it back on is gonna be tough. 2000RagTop, if ya wanna come to Rapids and help me put a new one on, I will buy the part from you.

......It's really not that hard to do....as far as helping you out. I'd be glad to BUT, your about 160 miles from where I live!
I think I can find a step by step walk through somewhere here.......Let me see if I can find the info on pulling the upper plenum. You'll only need a few tools.:

Plenum
Removal and Installation
Removal - V6 models only

1. It is probably easiest to go ahead and remove the distributor cap (2 phillips screws) and rotor now. Just pull the coil wire off of the coil, and the wires should reach far enough that you can set the cap over near the thermostat housing, without disconnecting any of the plug wires, and they will all be out of the way.
2. Remove the 2 nuts that hold the EGR tube to the EGR valve adapter.
3. If you need to remove the throttle body so it will be out of the way, either remove the coolant lines that run to it at the throttle body (mine were stuck and I could not remove them there), or wait until after you have removed the plenum and remove the hoses from the other end. The throttle body will stay where it is without anything else holding it up.
4. Remove the 2 Torx T-35 bolts that hold the throttle body to the plenum.
5. Remove the 12-point 8mm bolt that holds the throttle body coolant tubes to the plenum.
6. Remove the 2 12-point 10mm bolts that hold the throttle (and cruise control, if equipped) cables in place.
7. Remove the 10 12-point 10mm bolts that hold the plenum to the middle intake manifold. I keep mine in the same order by setting them in the slots on one of the louvered engine compartment side covers.
8. Pull all of the vacuum tubes off of the plenum. There is one underneath towards the throttle body end which you probably can not get off until everything else is off and the plenum is lifted.
9. After you remove the plenum, you can remove the EGR tube (two 10mm bolts) if necessary.

[This message has been edited by 2000RagTop (edited 01-15-2004).]

what are you talking about?
it's a 15 minute job...

here's a link that may be helpful:

http://www.calgaryfieros.com/OSGdocs/EGR-tube.html

[This message has been edited by 2000RagTop (edited 01-15-2004).]