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#1061153 - 03/15/19 12:41 AM Does the electric choke always have power?  
Joined: Aug 2018
Posts: 26
86Maine Offline
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86Maine  Offline
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Joined: Aug 2018
Posts: 26
Falmouth ME
My '86 has been put away for the winter and I have started in a few times since November just to charge the battery and put fresh gas through the lines, and burn off condensation in the system.
Today was a tropical 45F degrees so I cranked it up just to hear it run and exercise the motor a bit. The engine and wiring is 100% stock.
Well the throttle wouldn't kick down after warm-up so I noticed the choke was still closed. Hmmm. I put a multi-tester on the grey wire lead and it was dead. No voltage, and the choke worked fine last fall.
I checked the dedicated fuse (#2 in the panel) and it was in good shape.
I thought that the choke was supposed to be live at all times with ignition on?
Or is this an ECM managed thing?

Any suggestions or info is much appreciated.
Tom

#1061154 - 03/15/19 01:08 AM Re: Does the electric choke always have power? [Re: 86Maine]  
Joined: Dec 1999
Posts: 11,422
86ttop Offline
15+ Year
86ttop  Offline
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Member

Joined: Dec 1999
Posts: 11,422
Brooksville, Fl
Power goes thru an oil switch at the rear of the engine, then there is a relay on the passenger side inner fender that is in the circuit, I'll see if I can find a pic!!

Sorry, wasn't able to find a pic.

Last edited by 86ttop; 03/15/19 01:19 AM.

Leo Paugh
It's not an attitude, it's just the way I am.
POW*MIA
You are not forgotten
If things improve with age, I must be approaching magnificent. thumbs
#1061158 - 03/15/19 04:37 AM Re: Does the electric choke always have power? [Re: 86Maine]  
Joined: Jan 2000
Posts: 4,287
mmc427ss Offline
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mmc427ss  Offline
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Joined: Jan 2000
Posts: 4,287
Pottstown, Pa
The choke has power when the engine is ON and it has oil pressure. So, power to the choke ONLY when the engine is running. Oil pressure switch to the left of the dist is used for this chore.

Buy some 2+2 carb cleaner and clean the choke linkage, plate/shaft.
Check that the choke pulloff is working. Remove the vac line to it when the engine is running, the pulloff diaphragm will move out, reattach hose you will see the pulloff pull in.
Bob

#1061181 - 03/15/19 11:07 PM Re: Does the electric choke always have power? [Re: 86Maine]  
Joined: Aug 2018
Posts: 26
86Maine Offline
Junior Member
86Maine  Offline
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Joined: Aug 2018
Posts: 26
Falmouth ME
Thanks Leo and Bob, this is much appreciated.
So there is an oil pressure switch involved.
Last fall I disassembled the carb, completely cleaned it and all the linkage, new gaskets, TPS, accelerator pump, etc. It worked great after a couple minor adustments to idle speed, mixture and such. The electric choke worked well, as I was watching the opening angle throughout the warm up period.
But the car has only been started twice since about Thanksgiving, and neither time did it get exercised - it is in a portable tarp garage surrounded by snow. And still is.
I don't have much light or maneuverability inside the tarp shelter so I can't do any extensive troubleshooting yet.
I do have a full shop manual in the trunk that i will open up and see the wire diagram coming from the choke.
You guys have helped me narrow it down.
Just hoping for warm weather to melt all the snow and ice so I can bring it out in the open again and play with cars. I miss that a lot by the time March comes around.
I'll let you know on this thread when I figure it out. Might take a few more weeks....
Thanks again,
Tom

#1061779 - 05/07/19 07:58 PM Re: Does the electric choke always have power? [Re: 86Maine]  
Joined: Aug 2010
Posts: 239
tom demarco Offline
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tom demarco  Offline
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Posts: 239
Burlington
hope you didn't put gasket in behind choke

#1061786 - 05/08/19 01:57 AM Re: Does the electric choke always have power? [Re: tom demarco]  
Joined: Aug 2018
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86Maine Offline
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86Maine  Offline
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Joined: Aug 2018
Posts: 26
Falmouth ME
Originally Posted by tom demarco
hope you didn't put gasket in behind choke



Which gasket are you referring to? i'm still having an issue with the choke. Tom

#1061924 - 05/15/19 12:52 AM Re: Does the electric choke always have power? [Re: tom demarco]  
Joined: Aug 2018
Posts: 26
86Maine Offline
Junior Member
86Maine  Offline
Junior Member

Joined: Aug 2018
Posts: 26
Falmouth ME
Originally Posted by tom demarco
hope you didn't put gasket in behind choke


Umm, yes I did put the gasket in that way. I removed it and the choke works now.
So where exactly does that gasket go?
Tom

#1061926 - 05/15/19 05:13 AM Re: Does the electric choke always have power? [Re: 86Maine]  
Joined: Jan 2000
Posts: 4,287
mmc427ss Offline
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mmc427ss  Offline
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Joined: Jan 2000
Posts: 4,287
Pottstown, Pa
The choke heater coil needs to be grounded to the carb.
Bob

#1061990 - Yesterday at 01:30 AM Re: Does the electric choke always have power? [Re: 86Maine]  
Joined: Dec 1999
Posts: 11,422
86ttop Offline
15+ Year
86ttop  Offline
15+ Year
Member

Joined: Dec 1999
Posts: 11,422
Brooksville, Fl
the gasket goes in the trash!


Leo Paugh
It's not an attitude, it's just the way I am.
POW*MIA
You are not forgotten
If things improve with age, I must be approaching magnificent. thumbs

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