Voltage issue
Thread Starter
|
Senior User
Joined: Apr 2005
Posts: 453
Likes: 1
From: medford oregon
Voltage issue
I almost have this engine squared away. The last nagging issue is im only getting 6.5 volts to the electric choke on this edelbrock. I chased the wire down to a aftermarket fuse panel in the cab and its only getting 6.5 volts. The fuse panel is coming off of the starter solenoid output side and its 6.5 volts there. Isn't it supposed to be 12+ volts? Thanks for any input.
Postmaster
Joined: Nov 2011
Posts: 2,553
Likes: 10
If the starter solenoid is only getting 6 volts, I wonder how it could start? Does it run now? If so, maybe check while running. If not, could the battery be dead? I'd put a charger on the battery and try again while the charger is hooked up.
I would make sure you have 12+ volts at the battery and test from there until you find the drop.
I would make sure you have 12+ volts at the battery and test from there until you find the drop.
Posting Guru
Joined: Aug 2010
Posts: 1,761
Likes: 8
From: Knoxville, TN
Not sure which wire you've got feeding it there; if it's tied into the one from the "I" terminal though, it would be back-fed through the resistor wire from the coil, and get around 7-9V. It would also likely burn up that resistor wire, and be a significant fire hazard, since that wire's only intended to feed the coil, not the choke too. If it's one of the wires directly attached to the battery feed there, then there's probably a bad connection somewhere between the solenoid and the fuse block.
As others have said, the Ford electric chokes were designed to run at 7V off the stator wire of the alternator (that way, they only start heating up once the engine is spinning, not whenever you turn the key on if it hasn't started).
As others have said, the Ford electric chokes were designed to run at 7V off the stator wire of the alternator (that way, they only start heating up once the engine is spinning, not whenever you turn the key on if it hasn't started).
Thread Starter
|
Senior User
Joined: Apr 2005
Posts: 453
Likes: 1
From: medford oregon
If the starter solenoid is only getting 6 volts, I wonder how it could start? Does it run now? If so, maybe check while running. If not, could the battery be dead? I'd put a charger on the battery and try again while the charger is hooked up.
I would make sure you have 12+ volts at the battery and test from there until you find the drop.
I would make sure you have 12+ volts at the battery and test from there until you find the drop.
Trending Topics
Elder User
Joined: Sep 2014
Posts: 862
Likes: 7
From: like subarctic, brrr man!
Sort out that power feed, because your going to burn up your ignition coil resistor wire. The I terminal on the starter solenoid/relay feeds full voltage to the coil during starts.
What I would do is find out what voltage the electric choke requires (Aftermarket seems to be 12 volts) and then sort out the wiring for it.
Ford electric chokes sometimes used the stator with from the alternator (White Black on those 3g alternators) to supply 7ish AC 3 phase voltage to the choke.
12 volt chokes I heard you can use an oil pressure switch to control the choke and an ignition run power feeding that switch.
Anyway, the idea is to power the choke when the engine is running, and not simply when the ignition is in run position.
What I would do is find out what voltage the electric choke requires (Aftermarket seems to be 12 volts) and then sort out the wiring for it.
Ford electric chokes sometimes used the stator with from the alternator (White Black on those 3g alternators) to supply 7ish AC 3 phase voltage to the choke.
12 volt chokes I heard you can use an oil pressure switch to control the choke and an ignition run power feeding that switch.
Anyway, the idea is to power the choke when the engine is running, and not simply when the ignition is in run position.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
Top 10 Fords at 2026 Carlisle Ford Nationals
Joe Kucinski
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Thread Starter
|
Senior User
Joined: Apr 2005
Posts: 453
Likes: 1
From: medford oregon
Not the coil, that was a brain fart. I meant from the solenoid. I have coils on the brain from my ignition problems.
Thread
Thread Starter
Forum
Replies
Last Post
chafin1960
1973 - 1979 F-100 & Larger F-Series Trucks
13
Jun 18, 2016 02:21 PM
workingdog
FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428)
5
Jan 13, 2006 10:38 PM
desperado_18_2000
Fuel Injection, Carburetion & Fuel System
13
Jun 12, 2003 08:12 PM