Hi,

The hose that was connected here (circled area in the pic) has been broken off somehow, maybe it was weak or something. What is the exact significance of it and do I need to replace it?

by the way, the hose is very tiny.

Well, I've been working on a problem related to yours. What that looks like, is the egr solenoid, there are (not positive) 2 hoses that plug into it. One from the egr valve and the small hose from under the throttle body. This egr solenoid talks to your ecm and I believe opens and closes the egr valve.

btw if its a separate hose... then no idea.

Hope this helps.

[This message has been edited by headhunter (edited 02-17-2003).]

hmmmmm. I'm not sure, but I believe it is just one little hose, that connects them. Not sure though

really?

I would have figured there were 2 separate places for it to plug in, as one is producing vacum and the other... not sure(egr).

I just finished putting intake on my car and I have been posting questions about the vacum hoses... ie where they go.

Would this cause my manifold to glow red hot?

20 min driving or sitting at idle???
drive and air flow cools the car and ext manafold too
or just the hi-idle and extra gas dumped in at start can also heat the manafolds too

anyway find a vacume hose chart [use our search] and replace any open lines and the car will run better

btw egr will allso cool the motor and ext manaflods tooo if working

------------------
Question wonder and be wierd
are you kind?

Sitting Idle.
It is idled a bit high, in between 2 and 2.5 rpms

and "idle" rpm like that alone is enough to make the manifolds turn cherry red. It should be around 1k rpm. Good luck.

Phil

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87 FIERO GT 2.8 5spd
0-60 in 6.8 seconds!

how can I change the idle?

Try finding where that hose came from and ran to and repair or at least plug the fittings and see if that slows the idle down. A vacuum leak will cause high idle and red manifolds. Check all of the vacuum line for a leak.

I know the idle on a duke is somewhat adjustable but if something else is causing the high idle. The idle is controlled by the computer.

Another thing that will cuase high idle is the car not going into closed loop causing the computer to thing the car is cold. This would also cause a rich mixture and the car would run bad. This could be caused by a bad temp. sensor for the ECM This is less likely than a vacuum leak.

Once you fix that small hose, you may also want to check the EGR Tube afterward. a broken EGR tube will cause high idle and glowing manifolds. IT's on the left side of the engine covered by a silvery material. goes from the upper intake manifold to the Y pipe. check it AFTER you fix the broken hose.

There are three hoses on the assembly, arent there? 2 go to the back trunk wall and plug into the cylindrical EGR filter, and one small one goes from the EGR solenoid box-thing(technical term) to the round cylindrical EGR filter thing(another tech term!)

Okay, Thanks for the info. What kind of hose can I use? Can I just get something at my local autozone? What size is the hose? (in diameter and length)

any info?

Easiest? Dont have dimensions handy. You may just want to pop off the EGR solenoid (1 screw i believe) and take it to the autoparts place for a hose. Just need small vacuum hose.