開冷氣抖動到跳變速箱限制失效 - 汽車

By Erin
at 2022-05-06T00:16
at 2022-05-06T00:16
Table of Contents
小弟Ford Focus TDCI MK2.5,里程33.3萬多公里
最近碰到一個問題一直沒法解決,外廠跟原廠都找不太出原因
問題是當我開冷氣時,行駛一小段時間,在怠速或是低速檔切換時
車身會出現劇烈抖動,若此時馬上打N或P檔,或是趕快把冷氣關掉
抖動過1-2秒就消失了,如果不這樣做,會抖動到跳異常訊息transmission limited
malfunction,檔位鎖死在2檔,熄火重新啟動可以解除異常
經查異常碼是P1463 空調壓力感應器壓力變化不足,
修車廠因此換掉高低壓感測器,但是仍然沒解決,
過程中也發現從電瓶接到繼電器的線可能有問題,導致供電不足,
所幸也把這條線換過,但一樣無效
因為這段時間冷氣一直有冷,修車廠也重新灌冷媒,先排除冷氣的問題
一度懷疑到是不是引擎電腦有問題,更新了電腦程式,還是一樣發生抖動
回去原廠,原廠判斷可能是引擎電腦問題,但也不敢肯定
如果換一顆新的引擎電腦大概2萬多,只是怕問題還是無法解決
因為距離拿到新車可能還要兩個月,這台車也想留給家人近程代步
更何況今年2月才因為變速箱漏油而更換整組變速箱,
去年11月因為渦輪葉片斷裂也換了渦輪,加起來就10萬了...
可以的話,還是希望可以維修
想請問大家有沒有碰到這種劇烈抖動到跳這種冷氣異常?
以及還可以朝哪個方向解決...
謝謝~
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Tags:
汽車
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