What are these???
Printed From: TheAMCForum.com
Category: The Garage
Forum Name: Electrical - non engine
Forum Description: Charging systems, lights, non-ignition system, it goes here.
URL: https://theamcforum.com/forum/forum_posts.asp?TID=94177
Printed Date: Apr/19/2024 at 9:19am
Software Version: Web Wiz Forums 12.03 - http://www.webwizforums.com
Topic: What are these???
Posted By: Red20
Subject: What are these???
Date Posted: May/15/2018 at 7:51pm
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Not sure what section this best fits in, so here it is. Need help identifying the following items: Under wiper motor with vacuum hose connected to it http://s1082.photobucket.com/user/frazierjoshua/media/Mobile%20Uploads/A311AC1B-5C92-4974-A245-BAC82D073365.jpg.html" rel="nofollow">  Behind grill, driver side. Vacuum connection and separate electrical connection. http://s1082.photobucket.com/user/frazierjoshua/media/Mobile%20Uploads/DD77F996-6239-499C-B124-A99EA1C84140.jpg.html" rel="nofollow">  ------------- 1969 Javelin SST "Screamin' Banana" - Totaled Feb 2018 1973 Hornet Sportabout X "yellajack" - 360/727/TracLoc DAILY DRIVER |
Replies:
Posted By: pacerman
Date Posted: May/15/2018 at 8:20pm
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The second picture shows the ambient temperature sensor for the TCS (transmission controlled spark) system. I think the first picture might show the TCS solenoid vacuum valve. That TCS system was used to control NOx emissions during the early 70s. If that Hornet is older than 1976 you can disable that system in CA. Joe ------------- Happiness is making something out of nothing. |
Posted By: billd
Date Posted: May/15/2018 at 8:57pm
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Especially if it's an automatic and there's a four wire connector where the NSS and backup light connections go - then I suspect he's right about TCS. Mid-70s cars with automatics had that in many cases. -------------  http://theamcpages.com" rel="nofollow - http://theamcpages.com http://antique-engines.com" rel="nofollow - http://antique-engines.com |
Posted By: Samuelsc360
Date Posted: May/16/2018 at 6:47am
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That vacuum valve is supposed to be mounted to the rear of the engine. ------------- 1971 SC360 1973 Ambassador Sedan 360 1973 Hornet X 360 1973 Javelin AMC 401 1975 Sportabout X 258 |
Posted By: Red20
Date Posted: May/16/2018 at 10:19am
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Ok, I was wondering if that was TCS stuff based on my wiring schematic. Weird system the way AMC (I guess everyone?) did it. The 727 only has the 3 terminal NSS. Thanks guys. More parts for the parts shelf then. ------------- 1969 Javelin SST "Screamin' Banana" - Totaled Feb 2018 1973 Hornet Sportabout X "yellajack" - 360/727/TracLoc DAILY DRIVER |
Posted By: 401MATCOUPE
Date Posted: May/16/2018 at 11:20am
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Bill D is talking about the NSS switch connector at firewall having the 4 wire connector, not at the actual NSS. That is where AMC tied the Speed sensor for the TCS switch int the harness. ------------- Ross K. Peterson 68X,GoPac,343,AT,52A(1stCar) 68X,GoPac,390,4sp,52A 69X,GoPac,390,4sp,64A 70X,GoPac,390,4sp,87A,8 70X,GoPac,390,4sp,BBO,8 70 Jav SST,390,AT,BSO 74MatX,401,AT,Prototype 74MatX,401,AT |
Posted By: Red20
Date Posted: May/16/2018 at 11:32am
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Oh ok. That makes more sense. While we’re on the subject of vacuum, sensors, switches, etc., are both of the vacuum lines running into the engine bay through the A/C hoses grommet for the vacuum heater control valve? And why two separate supply lines then? I’m just gonna run them to a T, I suppose. I have an extra nipple on the back of my manifold from when I ran a TH350 with a vacuum modulator. ------------- 1969 Javelin SST "Screamin' Banana" - Totaled Feb 2018 1973 Hornet Sportabout X "yellajack" - 360/727/TracLoc DAILY DRIVER |
Posted By: Snotty
Date Posted: May/16/2018 at 2:35pm
I had that part on our '73 Gremlin X, 258 and 3-speed. I had no idea what it was or where it came from. Still have it in a box. ------------- Son's car: '73 Gremlin X, 401, T-10, Mopar 8.75 rear with 3.23 sure grip. My car: '70 Newport Convertible, 440 automatic |
pacerman wrote: