Customers may experience a MIL illumination for P1004, P2016 or P2017. Further investigation by the technician may find that DTCs are active or stored.
Most late-model engines come factory-equipped with plastic intake manifolds. Plastic saves weight and cost, and conducts heat much more slowly than aluminum or cast iron. This helps lower the temperature of the incoming air for a denser, more powerful air/fuel mixture.
One of the essential elements of engine building is making sure heads, blocks, main bearing caps, crankshafts, connecting rods, pistons, cams, timing gears, rocker arms and flywheels are free from cracks. If you’re doing a complete engine build, checking the intake and exhaust manifolds for cracks is also a good idea – and that includes plastic intake manifolds as well as cast iron and aluminum.
You may have seen it before: misfire codes, stumbling and suspicious fuel trim numbers. On a scan tool, the engine may show a loss in volumetric efficiency. The driver may complain about a loss of power, poor fuel economy, hard starts and a rough idle. But this is not a 12-year-old engine; it is only
Modern passenger and light-duty diesels with ECMs have mass airflow sensors and precisely control fuel delivery. Key to the efficiency and lifespan of the diesel engine is the diesel air filter. A restricted air filter will not affect fuel economy but will drastically affect power output. We asked prominent filter manufacturers for some diesel air