Black Knight Diesel Performance and Repair

04/14/2026

We've had some challenging cases recently.

One customer brought in a 2016 Ford F250 with intermittent remote start and TPMS issues. Another shop claimed they replaced the RKT module, which turned out to be a lie. We found and replaced the module, but the problem persisted. The RKT module then threw an "Antenna 2 missing" error. We searched everywhere for the missing antenna, found one on eBay, installed it in the headliner... and the problem remained! It was so frustrating. We kept digging and found a forum post about the exact same issue. The customer had a wireless trailer camera installed in the cab that was interfering with the remote start and TPMS. We unplugged it, and everything worked perfectly again.

Next up: a 2021 Cab and Chassis Ram Wrecker. The previous owner had the truck deleted, and after that, the PTO stopped working, so they bypassed it with a toggle switch. This caused the transmission to burn up, and another wrecker company bought it. Fast forward to now, and I got it. The first thing I did was flash the correct tune to enable PTO functions and removed the bypass switch. The PTO now functions correctly with the factory switch. The PTO performance code disappeared, and the transmission no longer goes into limp mode.

In PTO mode, the transmission locks the torque converter. The transmission doesn't know it's in PTO mode if it's bypassed.

We understand that these kinds of problems aren't always profitable for the shop. Sometimes you get stuck in a loop, wasting time. We don't like working for free, but the most rewarding thing is fixing something that no one else can. We pride ourselves on thoroughly investigating issues, finding the root cause, and fixing it.

We do brake jobs, front ends, and turbos, which are our bread and butter, but we also tackle electrical and drivability problems that other shops avoid. Not us – we will find the issue and fix it.

Give us a call!

Call now to connect with business.

04/09/2026

🔥 **MERCH IS BACK — AND IT’S BETTER THAN EVER!** 🔥

We’re pumped to announce that our latest shipment of **Black Knight Diesel merch** has officially landed! 💪

These aren’t your average shirts either — we went with **premium gear from Excel Sportswear**, and the quality speaks for itself:
✔️ Built tough for everyday wear
✔️ No shrinking
✔️ No fading
✔️ Holds up wash after wash

👕 **T-SHIRTS**
• Up to 2X — $25
• 3X — $27

🧥 **HOODIES**
• Up to 2X — $39
• 3X — $42

⚠️ **LIMITED SUPPLY — once they’re gone, they’re gone!**

If you’ve been wanting to rep **Black Knight Diesel**, now’s your chance. Come by the shop or message us to grab yours before they sell out! 🏁🔥

04/07/2026

🔥⚔️ INTRODUCING: KNIGHTSCAN PRO – 2 HOUR EXPRESS DIAGNOSTIC ⚔️🔥

Tired of shops guessing and throwing parts at your truck?
This is where that stops.

💥 FAST. ACCURATE. NO-BS DIAGNOSTICS. 💥

At Black Knight Diesel, our KnightScan Pro Diagnostic is built to give you REAL answers in just 2 hours.

🧠 WHAT YOU GET:
✅ 2-Hour Express Diagnostic
✅ Advanced testing & data analysis
✅ Experienced diesel techs (no guesswork)
✅ A clear, accurate repair plan

💲 PRICING THAT MAKES SENSE:
👉 $199 Diagnostic Fee
💥 $149.99 CREDIT toward your repair if you move forward with us

⚡ LIMITED AVAILABILITY:
We only take 2–4 KnightScan Pro appointments per day
👉 So every truck gets the attention it deserves

🛋️ WAIT IN COMFORT:
✔ Clean, comfortable waiting area
✔ Loaner vehicles available in some situations (case-by-case)

💪 Perfect for:
• Check engine lights
• Poor performance
• Electrical issues
• After-tune problems
• Hard-to-diagnose drivability issues

🛡️ 100% WORK GUARANTEE
We stand behind what we diagnose and repair.

📍 East Side OKC
📅 Monday – Friday | 8AM – 5PM

🔥 Stop guessing. Start fixing. Book your KnightScan Diag service today. 🔥
👉 Call or Text now — spots fill FAST

Professional Auto & Diesel Repair. Performance to Basic Maintenance. Specialized in Electrical Sys

04/07/2026

🔥 BLACK KNIGHT DIESEL – YOUR ONE STOP DIESEL SHOP 🔥

If it’s diesel… we fix it, build it, AND tune it for power. 💪

At Black Knight Diesel, we’re not just another shop — we’re built on quality, experience, and standing behind our work 100%.

🛠️ WHAT WE DO:

✅ Regular Maintenance & Service
✅ Advanced Diagnostics (No Guessing – We Find the Problem)
✅ Electrical Repair & Module Programming
✅ Engine Repair & Full Engine Builds
✅ Transmission Builds & Repairs
✅ Front End & Suspension Service

🔥 PERFORMANCE & TUNING:
• Custom Performance Tuning 🔥
• Duramax
• Cummins
• Powerstroke
• BMW Diesel
• Mercedes Diesel
• Audi TDI
• Dialing in power, drivability, and reliability

🚜 HEAVY EQUIPMENT & FLEET WORK:
• Skid Steers
• Tractors
• Excavators
• Specialty Equipment

💥 Whether it’s your daily driver, your race truck, or your job site equipment — we’ve got you covered.

🛡️ 100% WORK GUARANTEE
We stand behind EVERYTHING we do. No shortcuts. No excuses.

📍 East Side OKC
📅 Monday – Friday | 8AM – 5PM

👉 Call or Text us today to get scheduled!

Call now to connect with business.

04/07/2026

🔥 WE’RE BACK AT 100% — TIRES & WHEELS READY TO GO! 🔥

Our tire machines are officially back to FULL FUNCTIONALITY 💪 and we’re ready to get your ride dialed in the right way.

🚗 What we’ve got for you:
✔️ New Tires
✔️ Custom Wheels
✔️ FREE Mounting & Balancing with purchase of new tires 💥
✔️ Road Force Balancing on EVERY install – no shortcuts here

💥 Competitive Pricing – We’re here to earn your business, not just quote it
💥 Fast turnaround
💥 High-quality work you can trust

Whether you’re daily driving, towing, or building something badass… we’ve got you covered.

📞 Call or text us today
📍 Black Knight Diesel – Oklahoma City

⚫️ Don’t wait — get your setup dialed in NOW! ⚫️

Call now to connect with business.

03/25/2026

Been so busy to post.

We have a WP developments 10r140 going in with their billet converter made in house. We are a dealer for them and are proud. Ethan has been developing and racing the 10R platform for a few years now perfecting it. This is the 2nd 10r140 we have installed for a customer and they love them.

700hp capable transmission that was built better than factory with all the updated and upgrade internals with valve body mods to increase the life and make this truck drive like butter.

If you don’t follow us, give us a follow. Great things coming in the NEAR future.

.


Visit their page and look what they have to offer

https://www.facebook.com/share/1L4xRhh6zd/?mibextid=wwXIfr

02/25/2026

🚨💳 **BIG NEWS from Black Knight Diesel!** 💳🚨

We now offer **in-house financing through** **Synchrony Car Care** to help you get back on the road **without breaking the bank!** 🔧🚛

✅ **0–12 Month Financing Options**
✅ **0% Interest if Paid in Full in 6 or 12 Months** (with approved credit)
✅ Fast & Easy Application
✅ No More Delaying Important Repairs

Whether it’s engine work, cooling system repairs, diagnostics, or major diesel service—we’ve got a payment plan to fit your budget.

📞 **Call or Text Us Today** to apply!
📲 Get approved in minutes and keep your truck working for YOU.

👉 Don’t let money stop you from fixing it right.
👉 Finance it. Fix it. Drive it.

Click the link below for an instant approval.

https://www.synchrony.com/mmc/NT241272307?sitecode=acewel401

🚀

02/25/2026

We had a phone blackout yesterday changing Carriers. If you tried calling, we apologize but we are now back online.

This phone system can receive picture messages and text if needed.

Thank you
Clayton

12/23/2025

I had to edit this and post this.

In case you don’t understand. We will be closed Thursday and Friday of this week to get past all the BS that is going on in the world and focus on our family.

Have a merry Christmas everybody!

12/23/2025

We have completed the repair work on the Ford Power Stroke engine that was previously compromised due to an error by a former employee. The customer collected their vehicle on Friday and expressed satisfaction with the work done despite the circumstances. The truck was returned in better condition than before. Our team resealed the entire top end of the engine, excluding the head gaskets, and refurbished the covers to check for potential leaks. Although we incurred a financial loss, we hope to have gained the customer's respect and anticipate future business opportunities. The customer opted to replace the turbo and injectors simultaneously, taking advantage of the no-extra-labor-cost option. The repair is now covered under our 1-year parts and labor warranty, while the turbo and injectors are covered under Jasper's nationwide warranty program.