Underhood education, 231 CCC - What are these?

CaliWagon83

CaliWagon83

Royal Smart Person
Supporting Member
Nov 12, 2017
1,847
113
Orange County, CA
Hi guys. As I'm finally digging in to my Regal, I'm discovering the wonders of early '80s technology. As we all know, the CCCs are a mess of sensors, wires and vacuum lines. So I have a question on a few of these. My ultimate goal is to get all the vacuum lines correctly connected. We've already replaced a lot of them. Especially want to know what this blocked-off hose is. I have plenty of 5/32 and 7/32 hose. Thanks in advance.




 
Clone TIE Pilot

Clone TIE Pilot

Royal Smart Person
Aug 14, 2011
1,980
113
Galaxy far far away
What model and year is your car? Vacuum routing varies by every year.
 
1bad79

1bad79

G-Body Guru
Dec 3, 2011
886
93
Allendale mi
You should have a diagram under the hood on the fan shroud that will tell you where they go I'll check all my old manuals tomorrow also and see if I can find any info on this
 
airboatgreg

airboatgreg

Royal Smart Person
Oct 2, 2016
1,588
113
My first inclination is the hose with the bolt goes to the air cleaner sensor. Start car, remove bolt and see if you have vacuum. If you do, that probably goes to air cleaner. If not... need some other pics that show a wider view
 
Bonnewagon

Bonnewagon

Geezer
Sep 18, 2009
6,190
113
Queens, NY
I agree- that is for the THERMAC sensor in the air cleaner. Now, where is the choke wire? It is light blue with a goofy plastic connector that breaks as soon as you look at it so look for the remains.
 
  • Agree
Reactions: airboatgreg
CaliWagon83

CaliWagon83

Royal Smart Person
Supporting Member
Nov 12, 2017
1,847
113
Orange County, CA
I think the choke wire being unplugged was the cause of my fast idle. Haven't had a chance to take it out with it plugged in again, but seems the consensus is that was the culprit.
 
Bonnewagon

Bonnewagon

Geezer
Sep 18, 2009
6,190
113
Queens, NY
was the cause of my fast idle
Absolutely. Usually it is broken, unavailable, and left off. I go all the way to solder the wire to the choke fitting and then add a bullet connector a little upstream. Remember that when it breaks.
 

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