Speed Control Removal

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Speed Control Removal

MotorsportXLT
Well for almost 3 years now I have had a 78/79 ford truck sport steering wheel for my 85' sitting on my shelf collecting dust. My only hold up with installing it was the speed control as I would like to keep it. A while back I purchased the E8TZ-9A818-A dealer installed speed control kit. As far as I know its pretty similar to the E4TZ kit. What I want to know is how to complety remove the factory setup without cutting wires or butcher anything. I was kind of hoping someone has removed a factory cruise setup out of a truck in the Junkyard, and had some advice. Im guessing I can use some of the power sources for the factory setup. Any imput and advice would be greatly appricated!
Chris McGaugh
1982 F-150 XLS Flareside
1985 Bronco XLT "Lariat"
1986 Thunderbird Turbo Coupe
1989 F-250HD XLT Lariat Super Cab
1994 F-150 XLT Lightning
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Re: Speed Control Removal

Gary Lewis
Administrator
Chris - I can't answer your question about removing it, as I've not done it.  But you can see the schematics here: Electrical/EVTM/1986 EVTM/Speed Control.

However, there are some differences in those kits:

Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

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Re: Speed Control Removal

PetesPonies
In reply to this post by MotorsportXLT
I have an 83 Bronco that I removed the engine vacuum part of the cruise and installed a sport steering wheel as well. I have not removed anything else at this point, not sure I will have to . . but if there is anything I can help with let me know.
Pete's Ponies
Mustang RUSToration & Performance

1982 F100 Flareside
1983 Bronco

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Re: Speed Control Removal

Ford F834
Administrator
In reply to this post by MotorsportXLT
Chris, I don't have the answer on this yet, but I may dig into the topic fairly soon. I want to add factory cruise to the 81, so I will start by pulling the components from a junkyard truck. The EVTM really has all the answers, I just have not studied it yet. The main difference I think for you will be the type of switching and the control module. The factory system has to send everything through the two horn contacts so it's very different than the dealer added or aftermarket type.

Do you have a complete dealer added kit? Can't you just install it in addition to whatever is there and maybe utilize the speed sensor and transducer if they are the same?

I found out on my recent trip to Death Valley that I have a torn meniscus in my right knee, and ten days of travel and driving around the park really ticked it off. I no longer consider this to be a frivolous "luxury" item. It felt like someone pounded a metal rod under my knee cap and heated it with a blow torch. We have a couple of trips planned for this summer and I would like to take the truck, but not if I can't get functioning cruise control. Factory cruise trucks are abundant, so that's what I will try for, even though dealer added would probably be easier (just harder to find). I guess this is my karma for joking around that I will never own an automatic transmission truck unless I end up with an amputated leg.
SHORT BED 4-DOOR DIESEL: 1986 F350 4x4 under construction-- 7.3 IDIT ZF5+GVOD

STRAIGHT SIX 4X4: 1981 F150 2wd to 4x4-- 300 I6 close ratio diesel T19, hydroboost brakes, Saginaw steering

BIG F: 1995 F-Superduty under construction— converting to 6.9L IDI diesel ZF5+DNE2
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Re: Speed Control Removal

85lebaront2
Administrator
To add a factory cruise, you need the short jumper harness between the dash and steering column harness with the speed control "amplifier" and horn relay. The speed control vacuum dump valve for the brake pedal and on an MT truck the clutch switch and vacuum dump valve.
The speed control vacuum and electric harness go through the firewall to the right of the brake booster up high, and in far enough to clear the clutch hydraulic cylinder on MT models. It is a dedicated harness and plugs into the fuse box accessory feed location provided for it. Steering wheel, any with the switches that fits a truck column through 1991 will work.

Side note, the all electronic one uses the exact same control switches and a hydraulic "dump switch" on the MC.
Bill AKA "LOBO" Profile

"Getting old is inevitable, growing up is optional" Darth Vader 1986 F350 460 converted to MAF/SEFI, E4OD 12X3 1/2 rear brakes, traction loc 3:55 gear, 160 amp 3G alternator Wife's 2011 Flex Limited Daily Driver 2009 Flex Limited with factory tow package Project car 1986 Chrysler LeBaron convertible 2.2L Turbo II, modified A413

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Re: Speed Control Removal

Gary Lewis
Administrator
Good description.  Do you now have an "electronic" one in your possession?  
Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

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Re: Speed Control Removal

85lebaront2
Administrator
Several, of which at least 3 are complete with 460 throttle cables.
Bill AKA "LOBO" Profile

"Getting old is inevitable, growing up is optional" Darth Vader 1986 F350 460 converted to MAF/SEFI, E4OD 12X3 1/2 rear brakes, traction loc 3:55 gear, 160 amp 3G alternator Wife's 2011 Flex Limited Daily Driver 2009 Flex Limited with factory tow package Project car 1986 Chrysler LeBaron convertible 2.2L Turbo II, modified A413

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Re: Speed Control Removal

MotorsportXLT
In reply to this post by Ford F834
Thanks for the responses! I do believe the dealer kit used different sensors than the factory ones. I think I will use the EVTM to remove it. I will do a write up on it along with my other add ons already in it. My other idea is making some sort of switch that goes on the turn Signal switch and runs upto the brushes in the column.
Chris McGaugh
1982 F-150 XLS Flareside
1985 Bronco XLT "Lariat"
1986 Thunderbird Turbo Coupe
1989 F-250HD XLT Lariat Super Cab
1994 F-150 XLT Lightning
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Re: Speed Control Removal

Gary Lewis
Administrator
Dana made a kit that mounted a switch on the turn signal, and I think they were dealer-added for Ford.
Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

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Re: Speed Control Removal

MotorsportXLT
In reply to this post by MotorsportXLT
Do any of you know where the factory cruise speed sensor is?
Chris McGaugh
1982 F-150 XLS Flareside
1985 Bronco XLT "Lariat"
1986 Thunderbird Turbo Coupe
1989 F-250HD XLT Lariat Super Cab
1994 F-150 XLT Lightning
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Re: Speed Control Removal

Gary Lewis
Administrator
Look at Page 138 here: Electrical/EVTM/1986 EVTM/Speed Control.
Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

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Re: Speed Control Removal

85lebaront2
Administrator
In reply to this post by MotorsportXLT
On Darth it was right above where the speedometer cable came through the floor. There was an upper and lower cable and it connected them.
Bill AKA "LOBO" Profile

"Getting old is inevitable, growing up is optional" Darth Vader 1986 F350 460 converted to MAF/SEFI, E4OD 12X3 1/2 rear brakes, traction loc 3:55 gear, 160 amp 3G alternator Wife's 2011 Flex Limited Daily Driver 2009 Flex Limited with factory tow package Project car 1986 Chrysler LeBaron convertible 2.2L Turbo II, modified A413

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Re: Speed Control Removal

Gary Lewis
Administrator
Exactly where your EVTM shows it to be.  
Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

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Re: Speed Control Removal

85lebaront2
Administrator
The EVTM shows it underhood near the servo, it is inside the cab near the floor where the cable comes in.
Bill AKA "LOBO" Profile

"Getting old is inevitable, growing up is optional" Darth Vader 1986 F350 460 converted to MAF/SEFI, E4OD 12X3 1/2 rear brakes, traction loc 3:55 gear, 160 amp 3G alternator Wife's 2011 Flex Limited Daily Driver 2009 Flex Limited with factory tow package Project car 1986 Chrysler LeBaron convertible 2.2L Turbo II, modified A413

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Re: Speed Control Removal

Gary Lewis
Administrator
I missed that distinction.
Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

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Re: Speed Control Removal

Ford F834
Administrator
In reply to this post by MotorsportXLT
I have seen two types. The earlier ones have a 2-piece speedometer cable. There is a short one that goes from the cluster to a speed sensor, then a second cable goes from the other end of the speed sensor to the transmission. The later type is a single cable with the sensor at the end of it. The driven speedometer gear mounts directly onto the sensor. I don't have pics handy but I can take some.
SHORT BED 4-DOOR DIESEL: 1986 F350 4x4 under construction-- 7.3 IDIT ZF5+GVOD

STRAIGHT SIX 4X4: 1981 F150 2wd to 4x4-- 300 I6 close ratio diesel T19, hydroboost brakes, Saginaw steering

BIG F: 1995 F-Superduty under construction— converting to 6.9L IDI diesel ZF5+DNE2
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Re: Speed Control Removal

Gary Lewis
Administrator
I found this really informative web page (that even the author had forgotten ) which showed installation illustrations and part numbers for speed controls.  However, it didn't include the speedometer cable part numbers, although now it does.  It is at Underhood/Speed Control, as if that makes sense.  

But, looking at the speedo cables, it turns out that the change appears to have been made in '86.  The 1986 cables are one-piece and are from 73 3/8" to 90" long, while the 1980 - 85 cables are two-piece with an upper cable of 24 3/8" for all applications and a lower of from 44" to 63" long depending on the application.

Gary, AKA "Gary fellow": Profile

Dad's: '81 F150 Ranger XLT 4x4: Down for restomod: Full-roller "stroked 351M" w/Trick Flow heads & intake, EEC-V SEFI/E4OD/3.50 gears w/Kevlar clutches
Blue: 2015 F150 Platinum 4x4 SuperCrew wearing Blue Jeans & sporting a 3.5L EB & Max Tow
Big Blue: 1985 F250HD 4x4: 460/ZF5/3.55's, D60 w/Ox locker & 10.25 Sterling/Trutrac, Blue Top & Borgeson, & EEC-V MAF/SEFI

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Re: Speed Control Removal

MotorsportXLT
Well guys I think I figured out what I’m going to do! Rather than remove the factory system, I’m going to modify its switches a bit. I purchased some nos 84-89 Lincoln Mark VII switches. They’re a tad bit shorter than the truck ones, and they’re black. On all ford cruise control systems they used the same resistors in each switch function (resume, set/accel, and coast). I tested this and it is true. On the Lincoln switches if I run a constant 12v to the purple wire, the blue and black wire is the one that sends the signal. If I un plug the wire that goes from the steering wheel to the cruise amplifier and plug in the Lincoln switches there, the Lincoln switches and the truck cruise should work together . The only problem is mounting them.  What I want to do is have someone 3d print me a little bit bigger version of the dealer installed cruise control switches. Rather than about 9/16” by 9/16” by 5 3/8” I would need it roughly to be 1” by 1” by  6 3/8”.
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Chris McGaugh
1982 F-150 XLS Flareside
1985 Bronco XLT "Lariat"
1986 Thunderbird Turbo Coupe
1989 F-250HD XLT Lariat Super Cab
1994 F-150 XLT Lightning