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'COOL' WHEN IT NEEDS TO BE
| 题名： | 'COOL' WHEN IT NEEDS TO BE |
| 正文语种： | eng |
| 作者： | BRANDON STECKLER |
| 作者单位： | Motor Age magazine |
| 摘要： | Keeping true to the theme of always trying to find the root-cause fault, and as efficiently as possible, this next interactive case study comes from a great friend of mine, Steve. He was issued a repair order for a 2015 Lexus CT200h with the complaint of the MIL being illuminated. He retrieved the vehicle from the lot, and it operated well under its own power. Steve scanned the PCM for DTCs and noted only one, a P261B "engine coolant pump-B control malfunction." As with many of today's vehicles, this vehicle's water pump is driven electrically rather than by the accessory drive belt. This allows for more efficient engine thermal management. For instance, by slowing pump speed, engine warmup time can be shortened. And increasing pump speed can provide better heat transfer under high engine loads. |
| 出版年： | 2023 |
| 期刊名称： | Motor age |
| 卷： | 142 |
| 期： | 3 |
| 页码： | 46-48 |
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