where does the tube that comes out of the egr solenoid go to. and if the car bucks below 1500 rpm is it the egr?

Hi, if you are referring to the tube that has a wrap of insulation around it , the other end goes to the underside of the intake manifold upper plenum. This is the big red part that the throttle body mounts to. Some times this tube can crack which causes a vacuum leak along with erratic running. Hope this helps you. Ernie

quote Originally posted by wheelman2148: Hi, if you are referring to the tube that has a wrap of insulation around it , the other end goes to the underside of the intake manifold upper plenum. This is the big red part that the throttle body mounts to. Some times this tube can crack which causes a vacuum leak along with erratic running. Hope this helps you. Ernie

I think he is asking about the single tube that comes from the passenger side of the solenoid. I could use the answer too. The manual is not very clear, it says "to top" and looks like it loops back into the other lines but I know that is incorrect. I have two sets of lines and neither has the pluming for that.

The routing of the vacuum lines and fresh air line for the EGR solenoid are shown in this thread, 1st page about half way down:

https://www.fiero.nl/forum/Forum2/HTML/045528.html

Mike

Hi Mike, I just read that article you mentioned in your reply. What a wealth of info !! Thanks for your reply. Now I have more work to do on my '87 GT. Ernie

You're welcome wheelman2148 & thanks to Buddy Craigg for posting all that info. With it I was able to rebuild my EGR solenoid (broken wire), saved me $150!

Mike