Norcal Diesel Performance News

Aug
28
2026

Cummins P0087 Low Rail Pressure Diagnostic Help

Cummins P0087 Low Rail Pressure Diagnostic Help This is an all too common complaint on the 2003–2007 5.9 Cummins. Hard start. No start. Starts then dies. Or it just lays down and throws...

Jul
8
2026

BD Diesel 68RFE Transmissions for Ram Cummins: Roadmaster vs. Towmaster vs. Torquemaster — The Complete Buyer's Guide

BD Diesel 68RFE Transmissions for Ram Cummins: Roadmaster vs. Towmaster vs. Torquemaster — The Complete Buyer's Guide If you own a 2007.5–2018 Dodge or Ram 2500/3500 with a 6.7L...

Jun
29
2026

S&S Diesel DCR Pump & the P008A Low Pressure Warning: What 6.7L Powerstroke Owners Need to Know

S&S Diesel DCR Pump & the P008A Low Pressure Warning: What 6.7L Powerstroke Owners Need to Know If you recently installed an S&S Diesel DCR pump on your Ford 6.7L Powerstroke and...

May
4
2026

Can You Ship Non-CARB Diesel Parts to California? Here's the Real Answer

"Just Sign a Waiver" — Why It's Not That Simple with CARB and Non-Compliant Parts We get asked this question almost every day, so we figured it was...

Apr
29
2026

The CP4 Pump Problem: Everything Ford 6.7L Powerstroke Owners Need to Know

If you own a Ford Super Duty with a 6.7L Powerstroke diesel engine — or you're thinking about buying one — there's a ticking time bomb sitting under the hood that every owner needs to...

Mar
25
2026

New 2026 DEF Rules for Diesel Trucks: Full Breakdown

EPA DEF System Changes in 2026: What Every Diesel Truck Owner Needs to Know The years 2025 and 2026 have been the most active period for diesel regulation changes in over a decade. Between...

Mar
25
2026

FASS vs AirDog: Best Diesel Lift Pump Comparison (2026)

FASS vs. AirDog: Which Lift Pump Is Right for Your Diesel Truck? Your CP4 high-pressure fuel pump is a $3,000–$8,000 failure waiting to happen if contaminated fuel or air makes it...

Mar
25
2026

5 Best First Mods for Your 2025 6.7 Powerstroke

5 Best First Mods for Your 2025 6.7 Powerstroke The 2025 6.7L Powerstroke is a beast from the factory -- 500 HP and 1,200 lb-ft in High Output trim. But "good enough" isn't in...

Mar
10
2026

Time to Clean Your S&B Air Filter: 4-Step Guide for Maximum Performance

Clean Your S&B Air Filter Like a Pro S&B cotton cleanable air filters deliver top performance for diesel trucks, but they need regular maintenance to protect your engine and...

Feb
19
2026

What Is an Engine Harness? Ford 7.3 & 6.0 Powerstroke Guide

What Is an Engine Harness? If you've ever wondered what keeps all the sensors, injectors, and modules in your diesel engine talking to each other, the answer is simpler than you might think...

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