2005 Grand Caravan，13萬公裏。半年前起出現嗚嗚的叫聲，好象都是在比較冷的天氣出現。啟動不走，慢速或高速都有，好象轉方向盤時聲音大些。
我在網上找了找，覺得叫聲可能是power steering resevoir的問題，好象是裏麵的一個screen有問題。
有 一個人是這個情況：My '06 Grand Caravan makes a whirring kind of whining noise. It changes pitch when gears shift and I can hear it on the highway, around town as well as when idling. It happens when engine is warm but outside temp is cool. Dealer said he has 2 that do this and it has something to do with battery re-charging. My reliable mechanic has agreed. No one has offered a solution to this very annoying situation.
This problem is fixed! It was actually caused by the power-steering. Having the fluid drained and system flushed has resolved the noise problem.
另外有個youtube: https://www.youtube.com/watch?v=yL6YcHkyEmY, 叫聲和我的車一樣，換了power steering resevoir就好了。
今天去dealer查了一下（$６０），沒有告訴我車為什麽叫（我猜想他們可能也不能確定），隻給我列了一個要修的單子：
rack and pinion gear leaking (tie rods loose) = 1259.00
allignment= 69.95
power steering resevoir leak= 159.00
power steering flush= 99.99
front struts/mounts/bearings/blots cost=1098.00
front pads and rotors (rotors pitted bad/ 7mm pads)= 349.00
rear pads and rotors (pads 2mm/ rotors pitted)= 389.00
brake flush= 119.99
oil pan gaskets leaking= 269.00
這車一直在dealer哪做保養，前一次是１０個月前（１０萬公裏），沒什麽問題。現在哪都 leaking，有點奇怪，車庫地上沒有星點油。機油也沒少。今天從dealer哪一出來我就停在停車場查了一下PS fluid,在“ADD"標誌上方的兩個刻度之間，應該是不少的。（謝天謝地的是我好在看了一下，power steering resevoir的蓋了隻是放在上麵，沒扣上，我要是直接開回家，路上一顛，這蓋子沒準就掉路上了。）
我的問題是:
是不是他們不是很確定車叫的原因，就把最有可能的幾個東西都換掉。我想先換掉power steering resevoir。單子上列的其它東西，哪些是必須的。哪些可緩一下。
