What are the reasons for the delayed intake camshaft position in the Roewe 350?
3 Answers
The delayed intake camshaft position in the Roewe 350 may be caused by a stuck oil pressure control valve (OCV), mechanical jamming of the CVVT actuator gear, wear of the oil pump, stuck oil pump pressure regulating valve or system blockage, incorrect timing belt or chain alignment, or abnormal current in the VVT control circuit. Here are detailed introductions about the Roewe 350: Overview: The Roewe 350 is a compact sedan positioned in the A-segment market launched by SAIC Motor following the Roewe 750 and Roewe 550. It is also the first Roewe family car to incorporate 3G technology. Powertrain: Utilizing new technologies, the chassis, engine, transmission, and other components have been optimized and improved, achieving a fuel consumption of 6.9L. The 1.5L engine, in combination with the MHI turbocharger, can instantly deliver power performance comparable to a conventional 2.0L engine.
Having worked in car repair for many years, the common causes of Roewe 350 intake camshaft position delay are quite numerous. First, the timing chain or belt may be loose; over time, rubber aging can cause slippage, leading to misalignment of the camshaft. Second, the position sensor might malfunction due to dust blockage or corroded wiring, sending incorrect signals that affect computer control. Third, low oil pressure from dirty oil not being changed on time can clog oil passages, causing the camshaft to stick and not move. Fourth, a fault in the VVT system, such as a carbon-clogged actuator or a broken solenoid valve, can prevent proper valve timing adjustment. Fifth, the camshaft itself might be worn or improperly installed. Delaying repairs can lead to engine shaking and increased fuel consumption. Regular checks of the oil and chain can prevent many issues. Early detection saves on major repair costs and ensures safer driving.
As a long-time owner of a Roewe 350 for over a decade, my experience shows that intake camshaft delays are often caused by timing belt wear, where hardened rubber fails to stabilize the camshaft. Contaminated position sensors are also common, with rainwater seepage or oxidation leading to incorrect readings. Low oil pressure results in insufficient oil flow, causing poor camshaft movement. If the VVT system malfunctions, it inaccurately controls valve timing. Driving feels sluggish during acceleration, akin to being drunk, with annoying fuel consumption spikes. Regular oil changes and checking chain tension are advised, along with using genuine parts to extend engine life. Don't overlook minor issues as they can degrade engine performance.
