Engine Valve Train & Adjustment Shim: Faults, Replacement, Care
Power loss, rough idle or falling compression on a truck diesel often comes down to valve clearance and worn valve-train parts: diagnosis, shims, replacement.
Engine
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Articles
Oil Cooler: Failure Symptoms, Replacement & Maintenance Guide
Engine and transmission oil cooler guide for heavy trucks: failure symptoms, internal leak diagnosis, pressure test, replacement steps and torque values.
Truck Oil Pan Group: Faults, Replacement & Maintenance Guide
Heavy-duty truck oil pan guide: leak diagnosis, gasket and drain plug faults, step-by-step replacement, torque values, capacities and maintenance tips.
Exhaust / Engine Brake: Faults, Replacement & Maintenance Guide
Diagnose, replace and maintain the heavy truck exhaust/engine brake (cylinder, flap, valve). Symptoms, torque values, back-pressure and step-by-step fixes.
Engine Cylinder Head Group: Faults, Replacement & Maintenance
On a truck diesel a blown gasket, cracked head or coolant mixing into the oil starts here: how the cylinder head group works, diagnosis, replacement and care.
Exhaust Manifold: Cracks, Leaks, Replacement & Torque Guide
Spot exhaust manifold cracks, gasket leaks and broken studs on heavy trucks. Learn diagnosis, correct replacement steps, torque values and tightening sequence.
What Is an EGR Valve? Failure Symptoms and Cleaning (Heavy Commercial Vehicles)
What is an EGR valve? How it works, why it clogs, failure symptoms, diagnosis steps, and cleaning limits for heavy commercial vehicles.
Burnt Cylinder Head Gasket: Symptoms and Causes
Symptoms, leak paths and root causes of a burnt heavy-duty head gasket, plus pressure testing, block testing, torque procedure and replacement steps.
What Is a Turbocharger? Turbo Failure Symptoms in Diesel and Heavy-Duty Vehicles
What is a turbocharger and how does it work? Turbo failure symptoms, VGT vane sticking, and the oil habits that determine service life in heavy-duty diesels.
Low Engine Oil Pressure: Causes, Symptoms and the Lubrication System Explained
Low engine oil pressure in heavy-duty trucks: causes, warning signs, a step-by-step diagnostic order, gauge testing and how the lubrication system works.
Crankshaft Seal Oil Leak: Symptoms and Causes
Why does a crankshaft seal leak on a truck engine? Front and rear seal symptoms, diagnosis, the role of crankcase ventilation and replacement steps.
What Is a Crankshaft? Function, Failure Symptoms and Maintenance
What is a crankshaft? Its function in heavy-duty engines, bearing seizure and failure symptoms, measurement, regrinding and maintenance guide.
