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A faulty TPS causes major performance issues in your equipment. This guide covers key throttle position sensor symptoms, from engine hesitation to erratic shifting, and shows you how to test, diagnose, and replace the sensor yourself.
Diesel engine maintenance is the foundation of reliable off-road equipment performance. From airflow and fuel filtration to cooling systems and emissions components, disciplined maintenance habits help prevent overheating, power loss, and unexpected derates. This guide breaks down practical diesel truck maintenance strategies that also apply to loaders, excavators, dozers, and other diesel-powered machines—helping operators reduce downtime, protect high-cost components, and plan part replacements before minor issues turn into major repairs.
This guide shows you the coolant temperature sensor location on heavy machinery. A faulty sensor can cause bad fuel economy, black smoke, and overheating. We’ll cover the symptoms, common trouble codes, and a step-by-step replacement guide.
When your oil pressure is high, it’s a serious warning. It doesn’t mean better lubrication; it means a blockage is starving your engine. This guide covers the common causes—from the wrong oil to a clogged filter—and how to fix them.
Is your tractor or excavator losing power or misfiring? A bad ignition coil could be the culprit. This guide shows you how to test an ignition coil using simple methods like the power balance test, spark check, and multimeter measurements.
A failing serpentine belt on a 6.7 Cummins engine can quickly lead to charging issues, overheating, and accessory failures in off-road machinery. This guide explains what the serpentine belt does, when it should be replaced, and how to install it correctly while inspecting related components like tensioners and idler pulleys. By treating the belt as part of a complete accessory-drive system, operators can prevent repeat failures and reduce costly downtime.
Spotting a head gasket leak early can save your engine. Watch for key symptoms like overheating, a major drop in power, milky engine oil, or constant white exhaust smoke. This guide covers the common signs, causes, and tests.
Think you know how to use your snow blade? Pros use 5 simple patterns to plow faster and smarter. Learn back-dragging, windrowing, and how to stack snow high without damaging your lawn. This guide turns your winter chore into a skill.
SPN 2003 FMI 31 is a common but often misunderstood transmission fault code in off-road machinery. This guide explains what the code means under the J1939 standard, why it occurs, and how to diagnose it step by step. From sensor signal conflicts to CAN bus communication issues, you’ll learn how to restore drivetrain reliability and choose the right transmission parts to prevent recurring downtime.
DTC fault codes are essential for diagnosing electrical and mechanical issues in off-road machinery before they escalate into costly failures. This guide explains how DTC codes are structured, how J1939 SPN and FMI identifiers work in heavy equipment, and how operators and technicians can use fault data to improve troubleshooting accuracy, reduce downtime, and extend component life through proper maintenance and reliable replacement parts.
Spark plug heat range decides whether your engine stays clean or keeps fouling plugs. Learn the simple hot vs. cold tradeoff—and the warning signs before rough cold starts turn into real damage.
What temp does diesel freeze? Standard #2 diesel clogs filters around 10-19°F as paraffin wax gels. This guide explains the cloud point, CFPP, and pour point, plus how to prevent gelling and safely thaw your fuel system.
