Black Cat Diesel LLC.

Black Cat Diesel LLC. Located in Littlestown, PA. Specializing in light, medium, and heavy duty diesel truck repairs. Custom fabrication, welding and performance upgrades.

This early 6.0L Powerstroke was towed into Black Cat Diesel with a classic crank-no-start condition. Upon arrival, we we...
09/20/2026

This early 6.0L Powerstroke was towed into Black Cat Diesel with a classic crank-no-start condition. Upon arrival, we were able to get the truck started, but it had little to no throttle response and struggled to stay running. Once the engine began to reach operating temperature, it stalled and returned to the same crank no start condition.

Upon diagnosis, the IPR valve and ICP sensor readings pointed toward a high-pressure oil leak. We performed an air test on the high-pressure oil system and observed air bubbling back through the oil filter housing, along with a small but noticeable leak under each valve cover.

To pinpoint the failure, we removed the turbocharger and HPOP cover to perform another air test, where air was found leaking past the shaft seal on the high-pressure oil pump. The pump was removed and bench tested, confirming the same failure. We then air-tested the remaining components of the high-pressure oil system to verify no additional leaks were present.

This customer opted to go with the Dieselsite Adrenaline high-volume HPOP to help support the 190/30 injectors installed in the truck, while eliminating the weak points of the factory early style HPOP’s.

To complete the repair we installed the new Dieselsite Adrenaline HPOP, and then resealed the HPOP cover and turbo feed/drain lines with fresh OEM gasket kits.

Another 6.0L diagnosed and repaired properly with only the best parts for the application!

📍 Black Cat Diesel, LLC | Littlestown, PA
From diagnostics to complete repairs, we’ve got your diesel needs covered!

Send us a message to schedule your next repair!
443-832-9157

This truck came into the shop with a high-pressure fuel leak at the fuel rail pressure sensor. The customer had already ...
09/12/2026

This truck came into the shop with a high-pressure fuel leak at the fuel rail pressure sensor. The customer had already replaced the sensor, but unfortunately, the leak continued.

After further diagnosis, we found the passenger-side high pressure fuel rail was the source of the issue. While inspecting the rest of the fuel system, we also discovered several dry-rotted low pressure rubber fuel hoses in the engine bay.

Rather than simply fixing the immediate leak, we also replaced all 5 rubber fuel connection hoses in the engine bay to help prevent future failures, unexpected downtime, and another trip back to the shop.

At Black Cat Diesel, we believe in fixing the problem right — not just putting a band-aid on it.

Need diagnostics or diesel repair? Give us a call at 443-832-9157 or send us a message!

Sick of battling sky-high transmission temps while towing with your ’17–’19 6.7L Powerstroke?We’ve got you covered with ...
09/08/2026

Sick of battling sky-high transmission temps while towing with your ’17–’19 6.7L Powerstroke?

We’ve got you covered with a complete transmission temperature control solution designed to keep your truck running cooler and performing the way it should.

Don’t let excessive heat hold your truck back, while putting premature wear and tear on your expensive transmission components.

📲 Shoot us a message or give us a call at 443-832-9157 to discuss your diesel needs!

Black Cat Diesel, LLC — Keeping your diesel working hard, without the unnecessary heat.

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09/05/2026

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WEEKEND PLANS: Lynn Paxton Tribute / Labor Day Classic at Port Royal Speedway!

Racing 2pm | Coverage on FloRacing

Our SINCERE THANK YOU to all our partners who make the 11z possible!

Butler Hill Maple Farm
Falcon Machine Service, LLC
Fisher’s Heating A/C Electrical
Pandemonium Bar and Grill
Strange Oval
Newlin Bar Service, LLC
Black Cat Tattoo
Ron’s RV Sales
Walker Performance Filtration
Nesbit Innovations
Engler Machine and Tool
Black Cat Diesel LLC.
The Race Shop
Smoke Whisper BBQ
Roger Snyder Insurance
Safety-Kleen
AL Driveline
HRF Racing Fuels
RPM Chassis
Hershey Racing Engines
Addicted2Dirt PR & Media Mgmt

📸 Derick Kriner Photography

Out with the old, in with the new! This 6.7L Powerstroke experienced a failure of its CP4 injection pump, which thankful...
03/15/2026

Out with the old, in with the new!

This 6.7L Powerstroke experienced a failure of its CP4 injection pump, which thankfully had been previously outfitted with an S&S Disaster Prevention Kit - saving the injectors, along with the rest of the high pressure + low pressure fuel systems from metal contamination and expensive repair costs.

Rather than replacing it with a new (yet still problematic) CP4, this truck was upgraded with the SPE Motorsport CP3 conversion, for an absolutely bulletproof solution.

Although a part may be discontinued and unavailable anywhere new or used, it doesn't necessarily mean that your truck is...
09/24/2025

Although a part may be discontinued and unavailable anywhere new or used, it doesn't necessarily mean that your truck is doomed. This customer faced a similar dilemma when their parking brake bracket broke, causing the brake shoes to slip off and lock up the wheel end. Fortunately, we were able to repair the bracket in-house and get the customer back on the road, making money once again!

07/08/2025

It's Pennsylvania Speedweek Finale RACEDAY at Path Valley Speedway!

Hot Laps 7pm | Broadcast on http://sprintcarunlimited.tv/

Thanks to our partners who make this possible!

Ron’s RV Sales
Butler Hill Maple Farm
Tuscarora Roofing
Dillman Hauling, LLC
Wintergreen Window Cleaning
Christine Booher, Realtor
Strange Oval
Newlin Bar Service, LLC
Black Cat Diesel LLC.
Grove Financial & Associates
Safety-Kleen
Walker Performance Filtration
Nesbit Innovations
Deimler Chiropractic
Engler Machine and Tool

‘03 6.0 in for a set of Holder’s premium injectors and OEM glow plugs. Freshened up the passenger side valve cover and r...
03/05/2024

‘03 6.0 in for a set of Holder’s premium injectors and OEM glow plugs. Freshened up the passenger side valve cover and replaced the driver’s side due to rust. Contact us today to schedule your appointment for service.

We’re currently in the development stages of bringing some awesome new Powerstroke products to the market! Make sure to ...
06/26/2023

We’re currently in the development stages of bringing some awesome new Powerstroke products to the market! Make sure to stay tuned!

Andddd…… we’re mobile! We’re still working on getting the new service truck outfitted fully in order to better service o...
05/31/2023

Andddd…… we’re mobile! We’re still working on getting the new service truck outfitted fully in order to better service our customers, so please be patient during this time. We service anything from light duty through class 8 trucks and farm/construction equipment and trailers. While we are only serving our customers during evenings and weekends currently, we are hoping to have things set up to provide assistance 7 days a week, 24 hours a day. Stay tuned!

Address

Baltimore Pike
Littlestown, PA
17340

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