爬坡變吃力 - 開車

By Liam
at 2021-10-25T15:01
at 2021-10-25T15:01
Table of Contents
大家好
小弟的車是2.5代CR-V 目前里程約27萬公里
最近三個月以來發現爬坡變得吃力以及時速90-120的加速需要花較長的時間達成
上坡需要更深的油門和更高的轉速才有辦法爬上去
舉例 (都是晴天乾地的狀況下的紀錄)
a. 一高的林口坡
若一路油門深度不變、轉速維持在2500rpm 時速只有90左右
需要維持轉速約在4500rpm才有辦法讓速度保持在105km/hr左右
b.土城承天寺的好漢坡
沿著承天路時速約50過了緣圓園休閒餐廳後開始爬坡
(油門始終深度約維持1/2)
剛上坡約50m後 時速降到40
加深油門到3/4 (嘗試看看速度是否會增加)
轉速從3000拉到5000左右 但時速仍沒有明顯增加
爬到剩最後100m覺得要爬不上去了
油門踩到底車子才一路維持40的時速爬完這個坡
除了扭力被影響以外還覺得奇怪的現象是
1. 即使每天都開車,只要完全冷卻以後再發動都會有一點難發動
例如白天上班到公司晚上下班回家,或者停在家裡地下室一個晚上隔天出門時
2. 有時候抵達目的地車輛停下來準備熄火以前,排入P檔拉手煞車以後車身會抖動
只有這種情境下車身會抖動,怠速或其他時候不會
以下簡單附上最近三年內的維修簡歷
23.8萬左右 電瓶沒電發不動,換Varta 65B24L
24萬:洗快怠速閥、噴油嘴和燃燒室 (洗完不久亮引擎燈,插電腦說是爆震感知器)
25萬:洗油道、換搖臂蓋墊片和 ik20L火星塞(發現其中一支考爾泡在油裡)
26萬:換四支引擎腳
不知道有沒有神人可以幫我找出問題呢
謝謝大家
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