LML Duramax EGR Cooler Failure — The Complete Diagnosis & Fix Guide
The LML Duramax EGR cooler is the most failure-prone component on the engine. When it fails, coolant enters the combustion chamber — diagnose it before your head gasket goes.
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EGR Delete vs Repair: Cost & Reliability Comparison
Read nowThe EGR valve replacement quote changes drastically by engine. We break down labor and parts costs for Powerstroke, Cummins, and Duramax so you know what’s fair.
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How Often Should You Change a Cabin Air Filter in Dirt Roads?
Read nowA cabin air filter on a dirt-road truck can clog in 3,000 miles — one-fifth of the manufacturer’s interval. Weak airflow, musty smells, and dust on the dash are your clues.
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Which EGR Delete Kit Is Best for LLY Duramax?
Read nowThe 2004-2005 LLY Duramax was GM’s first EGR-equipped diesel — and shipped without a DPF. Here’s which delete kit actually fits and why the cheap ones leak.
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How Long Do 6.7L Powerstroke Engines Last?
Read nowHow many miles can a 6.7 Powerstroke go? Answers range from 120K to 400K+ — the difference is maintenance, tuning, and the CP4 pump gamble.
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Best GM AFM/DFM Disabler: The Cheapest Insurance for Your V8 Engine
Read nowGM’s AFM/DFM was designed to save fuel — but became the #1 cause of catastrophic V8 failure in GM trucks since 2007. A $100 disabler prevents a $5,000+ rebuild.
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EGR Valve Replacement Cost: Powerstroke, Cummins & Duramax
Read nowThe EGR valve replacement quote changes drastically by engine. We break down labor and parts costs for Powerstroke, Cummins, and Duramax so you know what’s fair.
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EGR Valve vs Cooler: Which Is Failing? Diagnosis Guide
Read nowConfusing EGR valve failure with cooler failure costs thousands. Here’s how to tell which one is actually failing — symptoms, diagnosis, and fix costs.
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6.7L Cummins EGR Cooler Clogging — Why It Happens and How to Prevent It
Read nowThe 6.7 Cummins EGR cooler clogs over time — every hard mile pushes exhaust through it. Why it happens, how to prevent it, and when to delete instead of clean.
