Q: Bad gas mileage, rough idling, rear end noise
我的汽车上的汽油里程非常糟糕。它曾经在18-24 mpg范围内，具体取决于我是在高速公路上还是在城市交通中驾驶。现在降至10-13 mpg。另外，我的汽车大约开始闲置。除此之外，汽车的后端（右侧）发出了巨大的声音。我认为某事一定是松动的，所以我去了商店，他们检查了震惊。他们很好。这些问题连接了吗？我应该怎么办？
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Hi there, thank you for writing in about your 1997 Jaguar XJ6. The poor mileage and a rough idle is potentially due to abad coolant temperature sensoror a broken wire to this sensor (the coolant temp sensor that is connected to the fuel injection). A broken wire in this circuit sends a false "cold" signal to the engine causing excess fuel consumption.
如果您在开车时提到的重击声，您可能会失败constant velocity (CV) joint在the right side axle. If you would like to have this looked at, a certified technician from YourMechanic can come to your car’s location todiagnose the rough idling issue,thumping noise, anddecreased mileagein order to have this properly corrected.
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