Crankcase Breather and PCV Faults on a Diesel Van
by One of the cheapest components on the engine, and one of the most commonly missed causes of oil leaks and blue smoke. Why the breather is worth checking first.
Category: Engine & Turbo
Diagnosis and repair guidance for diesel van engines and turbochargers — injectors, turbo faults, timing belts and chains, oil-related wear and the checks worth doing before any part is replaced.
Glow Plug Faults on a Diesel Van: Testing and Replacement Risks
Hard cold starting usually means glow plugs, but the relay fails just as often. How to test properly, and the seizure risk that makes removal the real problem.
Swirl Flap Problems on Diesel Vans
Swirl flaps improve combustion at low revs and clog with carbon like everything else in a diesel intake. Why a broken flap is the serious scenario.
Diesel Van Using Oil: How to Narrow Down the Cause
Some oil use is normal, so the useful question is what changed. Separating leaks from burning, why the crankcase breather is worth checking first, and what rising oil level means.
Timing Belt or Chain on a Van: Intervals, Warning Signs and Wet Belts
The maintenance item with the worst downside if ignored. Belt, chain and wet belt differences, why we will not quote you an interval, and what a proper replacement includes.
Turbo Failure Symptoms on a Diesel Van: Diagnose Before You Replace
Most turbo failures are caused by something else. How to separate boost leaks, blocked DPFs and sticking actuators from genuine turbo failure, and why the cause matters more than the part.
Diesel Injector Problems on Vans: Testing Before Replacing
Injectors are expensive and frequently replaced unnecessarily. Cylinder contribution testing, leak-off tests, why coding matters, and the high-pressure safety rules that are not optional.