I just saw on the Foretravel owners group Facebook page that a person named Brent Delfel doing business as Advance Diagnostic Consulting.com advertised that he repairs King Cruse Control. Phone 501-500-3611. I don't know if this is legitimate. If it is this would be great be news
I will let you know in a couple of hours. I have most of the parts in to do my air throttle but I would put them in storage in a heart beat to be able to put off the install. That's an Arkansas area code. Anxious to talk to this guy.
I left a message, we will see.
Advanced Diagnostic Consulting has a nice website...states "if it's diesel, we'll find the problem ". Interesting...
I'm on the phone number like a chicken on a June bug. I followed up with a text message.
I'll be getting in touch with him also since I have a spare unit with little time on it. Original owner of my coach switched it out for some reason when they were available. Previous repair records indicate that the king control unit was replaced before I took ownership at 50k miles. So I assume it has little wear on moving parts. It would be nice to have one in the spare parts bin ready to go.
Answered my text. Would have to ship the box to the West Coast.I will need to study on this a bit.
The way people move nowdays area codes ain't was they used to be.
Advanced Diagnostic Consulting located in
Snohomish, Washington. That's great I'll be dropping off my spare unit sometime soon for a bench test.
Please-- anyone who has experience with them and the repair of your King Control, please post on this thread. Be sure to include the symptoms, what they did and $$.
Would be great to have a new resource for repair of the King Control units.
THANKS!
Just spoke with him and learned he is in Washington State. For the time being I'm pitching this to Doug, may be your next door neighbor.
I hope this works out for you Dub! Our best to you and yours!
Anyone having any parts and/or broken controls get with this guy,maybe we can get an exchange unit going like we did with Redhead.
I may be still on the matter for the time being because I have all the components for the air throttle except the throttle cable and it should be her in a couple of weeks. These parts are not returnable and the amt of money is considerable. The number that Ron posted will reach the man so anyone with interest can reach him. I think he said this was mentioned on the Monaco site but I didn't see it and I've done some looking around concerning this project. Wish I'd found him before ordering my parts, I may have chose that route instead but it is what it is. He only last night posted on FB and I don't often look at that site and still wouldn't know of him if not for Ron telling us. I did tell him he would likely get some calls from our group. We all knew there should be someone somewhere that could offer help with the King unit but no one knew of such. I wont sit long with something as crucial as throttle failure without moving toward a repair and for me it was time to either fish or cut bait. Have places to go. It's good that those with the mechanical 8.3 seem to have another option for throttle and cruise issues.
I set up an appointment with Brent at Advance diagnostic nextweek. He's going to run my spare unit through the tests, says he'll need about an hour. Not sure what the symptoms or reasoning had been for replacement of this unit by the previous owner.
We also have a spare unit and cable,think the previous owners original went out he got a new one and then sent the old one for
repair.
Not sure what the symptoms or reasoning had been for replacement of this unit by the previous owner.
Back in the day when they were readily available I would wager to bet there were King units replaced that really didn't need to be. Other causes for intermittent low power/limp mode such as brake light switches, fuel solenoids, ect.. could very well have been the root cause when King problems were suspected as these symptoms first started showing up. (intermittently)
I personally suffered through this scenario of low power for a couple of years, very intermittent, might run fine for 6 or 8 months then out of the blue...bam! low power mode. I changed a few fuel filters needlessly, but every time I did it would start up and run fine until it decided to do it again. I just couldn't believe I had clogged filters the last couple of side of the road changes and after I cut them open my feelings were verified, they being clean inside.
This was during the time the original fellow (can't recall his name) was still repairing the King Control units and thinking surely mine was the culprit I sent him my unit for test/repair. "All is good with your unit" said he "works perfectly of the test bench". He did replace the cable, said the old one was still OK but considering it's age, the cable will probably be the first thing to cause you trouble.
Shortly after this I happened to notice my brake lights were on one day while sitting in my driveway...new pressure switches stopped that nonsense and I was confident my low power problem was solved.....not so, although it was even more intermittent...much more...it was still there.
To make a long story shorter, out of frustration I decided to replace my then 26 year old fuel solenoid. Bingo! no problems since. I know I had a flaky brake pressure switch no doubt about it, and apparently an intermittent lazy fuel solenoid also.....going on 3 years now with zero problems.
I still think there could have been some King boxes replaced back in the day unnecessarily.
In support of Ralph's lazy fuel solenoid, we once had a low throttle just like King would cause. Did many things, like fuel filters, etc. THEN found the solenoid was opening just enough to allow some fuel flow, but not enough to get speed above 10 mph. Of course, we all know now to look at fuel solenoid first and keep a few wire ties handy to fully open it to drive, cut them to stop. Repeat as necessary, even for a month if necessary.
It would be great to find someone who can keep King Controls working. Wonder if he knows all about it and how much business he can count on.
Brent says he's been working on King Throttle for years. He works on or offers support for diesel truck's as well as other equipment it seems. I expect him to make his way to our forum and he should be an asset.
Hello all, I been on a service call today but now back to the office. I am here to help.
My primary business is technical support in the heavy truck and equipment industry. I teach and do repair consulting for technicians. It is busy! I started my career in the late 80's at an RV dealership. I worked on luxury coaches for more than 20 years before getting into education and technical support. I know powertrain very well, and the king controller is something I have years of experience diagnosing. In the past few years I have been into several of them. So far I am 100% successful in repairing them. Parts are tough to get but I buy extra when I find them. I am looking for a controller I can buy to refurbish and have ready to go on an exchange program.
Cheers to you all🤘🏼
Welcome to the Forum.
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Michelle
It's been awhile since I've read through these old service records about replacing the kc-2600 actuator on my coach back in 2001 by Foretravel Northwest in Spokane Washington. At 33k miles coach came in for service due to throttle issues. King Cruise recommended changing out actuator unit along with control unit that was adjusted and calibrated.
2 years, 5k miles later back in shop for throttle issues again. This time they replaced just the control unit adjusted and calibrated.
My question is what is the control unit, cost of $65 and $75, in the accelerator pedal?
King Control: KC 2600 Throttle System Diagnostic Chart - All Things Foretravel (https://www.allthingsforetravel.com/2020/03/02/king-control-kc-2600-throttle-system-diagnostic-chart/)
Recently I've been having problems with the cruise control. Sometimes it works sometimes it doesn't.
I suspect it may be the buttons on the steering wheel. Not sure how to take that apart though haven't really looked into it too much.
Barry I wouldn't assume that all of us know how to bypass the fuel solenoid. There's so many things that can happen on these things that I just generally wait until it does and then I ask for help. Then you guys help me and I learn.
The fuel solenoid that's been talked about are on the mechanical engines. You have an
electrical engine.
Hi Journey Roam,
Understand your assumption.
Actually, the fuel solenoid work-around only applies to non-computerized C8.3 engines, not used much after 1997 model year on U270, U295, & earlier models. Other coaches need not concern themselves with fuel solenoid issues.
To not get stuck at fuel pumps, border stops and other critical areas, owners of these coaches would be well served to locate the solenoid on right side of engine from the open engine compartment door. That is one of the reasons we do not turn off engine at these types of stops.
Prevention always pays big rewards. . .
Doug, all that's under the accelerator pedal that they are calling a "control unit" is a square electronic TPS with 3 wires running from it to the King Box. TPS or Throttle Position Sensor is what every vendor I've talked to call it. The mechanic that worked on your coach may have used a different name for it.
Dub, you may be right about that I'll have to get under and take a look.
You can see the TPS under the pedal on the right side.
Ok, Williams control throttle position sensor. Makes sense that's what they replaced and referred to as control unit or box.
Some crossover part numbers: 131040, 132330
FYI, my understanding is the King Throttle Control box is only used by mechanical C8.3 engines on about 1997 and earlier model U270 & U295 coaches.
The front throttle pedal sends an electric signal only to King Control.
King Control sends an electrical signal to Allison by simulating the electric current the Allison Throttle Position Sensor (TPS) that would come from a mechanical TPS device. The front throttle pedal does not talk to the Allison Transmission.
That's the way I understand it Barry, In ordering the parts for my air throttle set up per JOR's parts list, one of the parts is an Allison Throttle Position Sensor, It's a pricey part that I got from Stewart Stevenson. I don't know if the existing TPS in the engine room is in the King Box or on the transmission or if I will have to delete or remove it when I install the new one I have from Allison..... Not to be confused with the one on the current accelerator pedal which is called TPS as well but only sends signal to the king Box. This will be a question I will ask John Orielly to clear up my confusion.
Looks like the TPS data is fed from the King control box. Mine definitely does not have the separate cable driven TPS as in other years.
In one of Barry's postings he writes the king circuit board has a built-in throttle positioner sensor by creating variable voltage for the transmission based on throttle movements.
Steve @ KC in the past also confirmed TPS data is fed from the King control box.
The electronic part of this project has me studying. On the job training.
The accelerator pedal has a Position Sender Module.
This module sends a variable voltage to the King Control representing pedal position.
The King Control positions the throttle lever accordingly to pedal position data supplied.
King Control in turn provides the Throttle Position data to the Allison.
The Allison provides Vehicle Speed data to the King Control.
If converting to an Air Throttle, a new Throttle Position Sensor (TPS) must installed to replace the information formerly provided by the King Control to the Allison.
That sums it up Charles. I had another visit with John this morning and he explained like you just did .Spending this time that it's to hot in my shop to work studying. The instructions are thorough but it is a lot to absorb, working on that now.
Update:
Picked up Bruce Beane early A.M. Wednesday and headed for Ferry crossing Puget Sound for a visit with Brent @ Advanced Diagnostics in Snohomish, Wa.
He has a 2 bay shop on his residential property and was ready to bench test the unit when we arrived. After a half hour with his electronic test equipment hooked up we found the King control unit to be good with no faults. Brent seems to understand the workings and parts associated with the King control. I would recommend to anyone with a non-working unit that wants to stay with the King control throttle assembly send him your unit for him to take a look at and repair if necessary.