Nissan Almera
2.2L common rail diesel with good power. Injectors and turbocharger are known weak points.
136 hp diesel — decent, done
Best diesel in the Almera, still not a fun machine — that was never the goal.
Engine Weaknesses 4
The YD22DDTi vacuum pump drive chain can break or damage the chain tensioner at high mileage. Deep wear marks on the tensioner guide plate are documented. Typical onset from 200,000 km.
Symptoms: Loud metallic clattering that increases with revs, hammering noise on throttle, power loss from loss of brake servo assistance
The YD22DDTi common rail injectors can seize and then cannot be removed. Forced extraction damages the cylinder head. Regular fuel filter replacement delays wear.
Symptoms: Cold start knock, rough idle, black smoke, individual cylinders not firing, power loss
The YD22DDTi common rail high-pressure pump can fail from wear or fuel contamination. Repair is not possible; new parts are expensive. Misdiagnosis by confusing it with a fuel filter fault is common.
Symptoms: Engine starts poorly or not at all, severe power loss, irregular combustion, fuel high-pressure fault code
The YD22DDTi EGR valve blocks from soot deposits under frequent city use. Cleaning with carburettor cleaner is possible and should be done regularly. At more advanced wear, the valve must be replaced.
Symptoms: Rough running, power loss, engine warning light, increased fuel consumption, limp mode