
Transmission Slipping in a Working Truck: Symptoms, Causes, and What to Do Next
Learn what transmission slipping looks like on a heavy-duty truck, what causes it, and how specialists diagnose and fix it before damage gets worse.

Signs of a Blown Head Gasket on a Diesel Engine
Learn the signs of a blown head gasket on a diesel engine, what mimics it, and how mechanics confirm failure before costly teardowns. Call (253) 449-0100.

Transmission Leak on a Heavy-Duty Truck: Causes, Warning Signs, and What to Do Now
Learn what causes a transmission leak on heavy-duty trucks, how to spot warning signs, and when to stop driving before damage or a DOT violation occurs.

How Tight Are Diesel Engine Valves?
Learn how tight diesel engine valves are, what OEM lash specs really mean, and why getting the clearance wrong burns valves or breaks them. 140 chars.

How to Check Compression on a Diesel Engine
Learn how to check compression on a diesel engine using relative and mechanical tests, read results accurately, and know when to call a shop.

Allison Transmission Fluid: The Right Spec, Interval, and Capacity by Series
Find the right Allison transmission fluid spec, change intervals, and capacity by series. TES 668, TES 295, TES 468 explained with exact quart figures.
