smokinquack Posted February 21, 2021 Share Posted February 21, 2021 Cleaning up my engine bay and have these wires that dont go anywhere. Black and blue on a connector, and green seperate. Go to a "little silver fuse" Also a ground and another by the wiper motor (which isnt working). Any ideas? Quote Link to comment Share on other sites More sharing options...
MC1of80 Posted February 21, 2021 Share Posted February 21, 2021 In the second pic, The white and brown were used for the coil when the car had a points distributor. With the key in the on position, make sure you don't have power to the terminal. If you do, tape it up so it doesn't ground out. 1 Quote Link to comment Share on other sites More sharing options...
1970mcss Posted February 21, 2021 Share Posted February 21, 2021 The blue and black wire with the connector is for the idle stop solenoid. There is a small harness that runs from that connector to the solenoid. Quote Link to comment Share on other sites More sharing options...
smokinquack Posted February 25, 2021 Author Share Posted February 25, 2021 Where is this idle stop solenoid you speak of? Quote Link to comment Share on other sites More sharing options...
1970mcss Posted February 25, 2021 Share Posted February 25, 2021 If you have one on the car it would be on the carb. Drivers side. Do you have a big block?? My car didn't have one and we had trouble finding any history of one on a big block but I had a bracket made for mine. I have a extra solenoid if you need one but no bracket Quote Link to comment Share on other sites More sharing options...
MC1of80 Posted February 25, 2021 Share Posted February 25, 2021 Quote Link to comment Share on other sites More sharing options...
smokinquack Posted February 27, 2021 Author Share Posted February 27, 2021 The brown and white wire was hot with the key on so I taped it off, thanks for that. It is a SS454 and I dont see a solinoid, maybe the wire is provincial? Sidenote- I double checked the wiper fuse and its broke on the end, not blown in the middle like you would expect so hopefully a new fuse will fix it. Quote Link to comment Share on other sites More sharing options...
MC1of80 Posted February 27, 2021 Share Posted February 27, 2021 Should be a solinoid in the area that mine is pictured. Different brackets to attach it were used. What year SS? 70? Quote Link to comment Share on other sites More sharing options...
1970mcss Posted February 27, 2021 Share Posted February 27, 2021 I added the solenoid. As I posted we haven't found a picture of a 70 ss with the solenoid but this was a guess. As I posted I have an extra solenoid if you need one and I know some that can make the bracket. The patch harness can be bought on line 1 Quote Link to comment Share on other sites More sharing options...
smokinquack Posted February 28, 2021 Author Share Posted February 28, 2021 It is a 70 SS454, what is the purpose of the solinoid? There is a screw that sets the idle speed, which I have adjusted, it runs good, idles good, was there ever one? do I need one? I meant to say provisional not provincial Quote Link to comment Share on other sites More sharing options...
MC1of80 Posted February 28, 2021 Share Posted February 28, 2021 The main reason for the solinoid is to raise the idle, keeping the idle at the correct speed when the a/c is on and lugging down the engine. Quote Link to comment Share on other sites More sharing options...
Rob Peters Posted February 28, 2021 Share Posted February 28, 2021 It is also used to reduce the chances of dieseling/engine run-on after the key is shut off. When the key is shut off it removes power from the solenoid and the plunger drops down allowing the throttle to stop gas flow into the carb to prevent the diesel in rob Quote Link to comment Share on other sites More sharing options...
1970mcss Posted February 28, 2021 Share Posted February 28, 2021 Yes, like Rob mentioned my car was dieseling at shut off and it fixed that problem. The parts book shows the solenoid for the 70 but like I said we haven't found any proof that they ever had one. In 71 they changed the design of the carb to incorporate a the bracket. In a prior post many members posted pictures of the 71. I'm still looking for proof but until then I'm going to leave it on the car. Quote Link to comment Share on other sites More sharing options...
Jim Boczar Posted February 28, 2021 Share Posted February 28, 2021 Hi Greg, I had sent you a PM the other day in regards to these wires. I believe the black and blue wires are for the TCS solenoid which connect to the silver "little fuse" on the wire gutter. There is also the green wire with a jumper (2 terminal connector) to the temperature sensor in the passenger head. Another wire should come off the little fuse and go down to the transmission switch on the driver's side. The TCS solenoid would mount on the intake near the alternator bracket. This solenoid controls vacuum advance and most solenoids are discarded for better performance. Quote Link to comment Share on other sites More sharing options...
Jim Boczar Posted March 1, 2021 Share Posted March 1, 2021 I will try to add a picture of the solenoid location and the "little fuse" is actually a relay device. There are also rubber and steel vacuum hoses. Quote Link to comment Share on other sites More sharing options...
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