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Old 12-05-2003, 11:34 PM   #1 (permalink)
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How to hook up electric choke?

On 4160 Holley how would i hook up the electric choke? Its in a 66 Mustang? What wires would i use as power? Suggestions on that are appreciated also.
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Old 12-05-2003, 11:57 PM   #2 (permalink)
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How to hook up electric choke?

The choke cap will have two female spade connectors on it. One is for ground, plug in a male spade connector and the other end ground it to one of the 3 screws that hold the choke cap retaining ring. If your carb came with an electric choke this will probably be done already.

The other connector will be where you tap into a switched 12V source in your electrical system. Get a test light and probe some connectors with the ign. switch on but engine not running till you find one that's hot only when the key is on (not accessory). If possible get a volt meter to confirm that it is a 12V source, some circuits may be below 12V and your choke may not operate properly.

If possible a wiring diagram of your car will come in handy so you can find out what 12V circuit you may have come across, try to find a circuit that's not under much load already as adding an electric choke to a circuit already heavily used can blow fuses and/or cause damage to the electrical system of the car. A fan motor circuit would be a good choice as you probably don't use the blower fan in the car that often and is wired to handle quite a bit of current.
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Old 12-06-2003, 12:01 AM   #3 (permalink)
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How to hook up electric choke?

Thw carb has 2 prongs on the cap both are identical. No wires are on either one.
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Old 12-06-2003, 01:45 AM   #4 (permalink)
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How to hook up electric choke?

FASTBACK66,

A whole lot of factory electric choke hook ups get
power from a terminal on the back of the alternator
that only provides power when the engine is running
and the alternator is spinning. By doing this your
choke won't pull off with the key turned on when the
car isn't running. This might not sound like a very
important aspect of picking a power source but it is
important up north on a daily driver. A gear head
would no doubt be able to get the car started no mater
what the choke is doing or not doing on its own. A non
gear head on the other hand would be likely to sit and
listen to the radio for a 1/2 hour while his wife is
in the store shopping, all the time keeping the choke
wide open 'cuz the key is on. If its 20 below outside
the car would be tuff to start even after just a half
hour, with no choke applied. Just a thought....Bruce
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Old 12-06-2003, 02:51 AM   #5 (permalink)
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How to hook up electric choke?

I run one wire to the small rear terminal on front of the solenoid and the other to a screw on the choke cap. It only works when the key is in the "run" position.
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Old 01-27-2010, 02:29 PM   #6 (permalink)
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Re: How to hook up electric choke?

You need to connect to the ign sw but ahead of the pink wire which is the ballast for the coil. That insures the choke will open fully. Do not connect to the 'I' term on the start solenoid as that point is after the pink wire. You probably will have to run a new wire through the firewall to make that connection.

RS
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Old 01-27-2010, 02:52 PM   #7 (permalink)
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Re: How to hook up electric choke?

Use a relay triggered by either the stator terminal on the alternator or the wire that goes to the + side of the coil & there is a wire at the voltage regulator that only gets voltage when the ignition switch is in the run position.
Fuse the hot wire to the relay which can be the battery side of the solenoid.
Do not use the stator terminal to power the choke directly cause it only produces 9 volts & your choke will open too slowly.Bill
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Old 01-27-2010, 03:00 PM   #8 (permalink)
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Re: How to hook up electric choke?

I am with Bill (wsa111) on this subject. His suggestion is how I do it.
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Old 01-27-2010, 03:31 PM   #9 (permalink)
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Re: How to hook up electric choke?

Quote:
Originally Posted by bprigge View Post
FASTBACK66,

A whole lot of factory electric choke hook ups get
power from a terminal on the back of the alternator
that only provides power when the engine is running
and the alternator is spinning. By doing this your
choke won't pull off with the key turned on when the
car isn't running. This might not sound like a very
important aspect of picking a power source but it is
important up north on a daily driver. A gear head
would no doubt be able to get the car started no mater
what the choke is doing or not doing on its own. A non
gear head on the other hand would be likely to sit and
listen to the radio for a 1/2 hour while his wife is
in the store shopping, all the time keeping the choke
wide open 'cuz the key is on. If its 20 below outside
the car would be tuff to start even after just a half
hour, with no choke applied. Just a thought....Bruce
why the quote , so you can read the right way to do it again. for info thats how Ford did it on electric chokes
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Old 01-27-2010, 04:22 PM   #10 (permalink)
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Re: How to hook up electric choke?

Dan, ford used a choke coil that was compatable to the 9V stator terminal voltage & if i remember right they also ran the heater hose via a bracket that put the heater hose in contact with the housing.

Wire it the way i previously stated & you will not have a problem. Bill
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Old 01-27-2010, 04:23 PM   #11 (permalink)
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Re: How to hook up electric choke?

Ford's choke cap has a different spring than the Holley. I gotta find the info to be confirmed, but that is what I found a long time ago.
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Old 01-27-2010, 06:46 PM   #12 (permalink)
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Re: How to hook up electric choke?

Quote:
Originally Posted by wsa111 View Post
Dan, ford used a choke coil that was compatable to the 9V stator terminal voltage & if i remember right they also ran the heater hose via a bracket that put the heater hose in contact with the housing.

Wire it the way i previously stated & you will not have a problem. Bill
depends on model and year, some had the heater hose others hot air tube from the exhaust manifold . nothing should be tied into the ignition coil key on power is to the coil . for the OP, once power is hook up, still need to check and adjust choke and fast idel speed. more to the choke that correct jet size for a given engine
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Old 01-28-2010, 09:32 PM   #13 (permalink)
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Re: How to hook up electric choke?

Quote:
Originally Posted by DanH View Post
why the quote , so you can read the right way to do it again. for info thats how Ford did it on electric chokes
DanH.... just asking myself why youre always so darn sinical when you answer questions? Settle down bro. Some guys in here are newbies and just trying to learn. GEEEEZ, I guarantee you dont know it all motorman!
...and if you do, its time to buy a casket because theres no reason to live any longer.

Sorry for my rant to the other members here, but there's no need to be rude to other guys.
Lets settle it on a track and call it a day.
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Old 01-28-2010, 10:02 PM   #14 (permalink)
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Re: How to hook up electric choke?

To help clear up the issue, not all fords used the 'stator' term on the alternator as a power source for the electric choke. Some used the full 12 volts from the batt. Though I can't quote which did and which didn't. That makes it difficult to say which choke elements to use. Like so many other things you need to keep an open mind.

Someone mentioned that the Holley choke had a different coil than fords and wouldn't work. Not true. If you look at different choke elements used on fords you will find a few variations. But that doesn't necessarily mean they won't work. Some open faster than others but that is not a problem. Pick one and try it. If it's too fast then try another model.

Holley makes a delay module that will sync the choke opening speed to the warm up of the engine. That fixes the opening speed no matter which one you use.

The Holley choke element will fit a ford carb and work very well. It has 2 connections whereas the ford only has 1. Adaption is a simple change.

RS

See post under 'Choke Conversion' Galaxie pages.

Last edited by Comechero65; 01-28-2010 at 10:35 PM.
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Old 01-29-2010, 02:12 AM   #15 (permalink)
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Re: How to hook up electric choke?

Hey Comechero65, I don't mind being corrected. Never new it all and never will. I never said "it wouldn't work". Just said they are different. Check my post.
Hey guys, I am learning more from this thread. So far, all the Ford carbs I have had, were hooked up to the stator terminal. But I haven't seen them all either.
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