I've read a lot of posts about EGR tubes breaking/cracking and all the problems they cause. Not to mention the $$$ involved in replacing the dang thing. I looked at it and can see that the engineering design is AWEFUL. The "Y" pipe ties into the exhaust manifolds w/ a spring loaded flange which allows minor movement between the exhaust system and manifold. That is great for the manifold...but sucks for the EGR tube, which is bolted to the valve and intake. Now I can see how that tube will crack no matter what you do...it is just a matter of time. So that bring me to the next logcial question...Do we really need the EGR valve? I is my understanding that it only serves to recycle some exhaust gases when the motor is cold in an attempt to help w/ emissions and help bring the motor up to operating temp quicker. Since I live in NC...passing emissions is not a big issue. Can I live without it? Thoughts/comments/experiences.

Don't need it but you will need to plug the exhaust and intake ports and have your prom reprogrammed to delete the egr or it'll throw a code at ya.

If you're just going to block the valve/tube then it shouldn't throw a code. If it is throwing a code (service engine soon light on), then you can eliminate that by connecting the two black wires going into the solenoid. Pull them out and connect them together. It tricks the ECM into thinking everything is ok with the solenoid.

You might have to retard your timing a couple degrees if it knocks on you. Mine was disconnected for a while and I didn't have any knock with the stock timing (10° BTDC). Opinions vary on this one.

Dave

The purpose of the EGR is to reduce combustion temperatures thus reducing NOX emissions. It also minimizes the engine ping that you get from preignition. An EGR is not necessary but there are a couple things you need to change if you eliminate it.

1. Plan on using a higher octane fuel.
2. Retard the timing a few degrees or get a custom chip burned for the computer that doesn't advance the timing as much to compensate for the lack of an EGR.

If you allow the engine to ping it will eventually damage the pistons and/or valves.

I have blanked both the ports off, and have left the valve and all electical parts connected..I use 98 octane fuel get no pinging, performs just the same, and no codes..?? Seriously wondering if it is worth putting on a new one?
fierofetish

I asked this question at the beginning of the summer, what I came up with is this.
(1) If you have smog police in your area do not remove.
(2) If you do not have to worry about emmisions, remove if you like but do it properly, have a chip burned. The second is my opinion only, the first deals with local laws and ways to avoid fines in your area.

Thanks for the info...I will leave it alone until I get a crack in the EGR tube. With the cam I have in the engine now...I figure it is only a matter of time until the vibration takes its toll.

I would definitely suggest that you leave it alone. The engine was designed to have it and it definitely cools combustion temps, plus of course, keeping the smog down.

You will defintely have to run premium gas and prob back off the timing a bit and as stated above, have a new prom burned.

If the above doesn't bother you and you are willing to pay the money......go for it, but I hope you rethink it and leave it alone. Good luck and peace.

Phil

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I am always available to help those that need help. Since my back injury, I cannot work on many of the aspects of the cars, but I can offer the knowledge of my 27 years as a GM technician. Bring the questions on................!

no, it is not really necessary. you do not have to run higher octane if you remove it. you may have to turn the timing back 2-4*. it does not improve or take away performance.

hey dude - where is Moyock NC?

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'85 GT 2.8L Auto 120K DRIVEN DAILY

Moyock, NC is just 3 miles south of the VA boarder along RT 168. It is in the very NE corner of the state and half way between VA Beach and Nags Head, which for my 18 yr old son w/ a RED '95 Mustang is the most awesome place to hang for his senior year in HS. He splits his time between girls at both beaches...

Surrounding area is awesomely flat w/ long straight highways and lots of windy two lane country roads for drivin on! ;-)