CHEVROLET

PIP5201

2014-05-20 · NHTSA 10112076

車型關聯可作查閱線索；引擎、生產範圍與軟體條件請核對原廠資料。

原廠摘要

以下為英文原文

This Preliminary Information communication provides information to the technician about vehicles that may have misfires or rough running on cold start up. Technician may find a Diagnostic Trouble Code P0300. Technician will need to use a scan tool and observe Crankshaft Position Re-sync Counter parameter. The Re-sync Counter parameter should remain at 0 during all operating conditions, and while manipulating the related harnesses and connectors between the crankshaft position sensor and the Engine Control Module. Technician will need to inspect for water intrusion in related connectors, terminals, and components. Tech will need to bring the vehicle up to engine coolant temperature that was stored when Diagnostic Trouble Code P0300 was set. After the engine coolant temperature is up to temperature technician will need to perform compression and cylinder leakage and record the readings. Technician should also verify correct fuel system pressure, inspect the heated oxygen sensors for contamination from fuel, silicon, or the incorrect use of room temperature vulcanization silicone sealant, and inspect the spark plugs for incorrect heat range, coolant or oil fouling, carbon tracking, cracks or insulator fractures at the tip. Technician should also Test for coolant contamination into the cylinders.

僅在原廠、通報編號、發布日期和完整摘要一致時，才合併重複登錄，並保留原始編號。舊資料仍可查閱；確認明確取代關係後才標示後續版本。1994 年以前的車輛關聯與預設結果分開顯示；未註明年式不等於所有年式適用。