[问题] 自动档车加速慢,在临近40km/小时时容易失速,过后则一切正常

pickle

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请问是变速箱问题吗?要怎么修?
 
The most economical way to find out the problem is change the transmission first.
Because if the transmission oil is too dirty, it could affect the transmission change gear.
It only takes about 15 min to change the oil and cost about $8.00 a liter transmission oil.

Sometime too dirty the transmission will act like have problem.
 
就是速度会掉,似乎没挂上档的感觉,但如果松下油门再重新加速的话就没问题,过了40就一切正常了。

谢谢楼上的 pigeon,不过在哪里换都是这个价钱吗?
 
最初由 Pigeon 发布
The most economical way to find out the problem is change the transmission first.
Because if the transmission oil is too dirty, it could affect the transmission change gear.
It only takes about 15 min to change the oil and cost about $8.00 a liter transmission oil.

Sometime too dirty the transmission will act like have problem.
how many thousand km do we supose to change the tranmission fluid?
 
You do it yourself, of course it is much cheaper. The price I am talking about is you do it yourself. If you pay someone to do it, they might charge you about 1 hour labour, it depends on how much the garage chage you for an hour labour.

From what you describe the problem, it sounds like not the dirty transmission oil problem. When did you change your transmission oil last time? If you didn't change it for long long time, maybe it is good idea to change it anyway. Since you have to change it every few years, it depends on what kind of car you are driving.

You might say, oh if the problem is not from the transmission oil, why I need to change it.
But I can tell you, change transmission oil might cost your about $60 but if you don't maintain your transmission, it could cost you over a $1000 repair.

That why I suggest you change your transmission oil first to see if it help.
If it slove the problem, you are lucky, you save money from paying someone to trouble shooting.
If not, you still change new transmission oil for you car, which is required to change every few years anyway. So this approach, you have win win situation, even you want to sell your car, you need to fix this problem, nobody going to buy your car if it does run smoothly.

Unless the mechanic can tell what is the problem with your transmission, otherwise for trouble shooting process, you better start to change parts/something from cheapest price/most economical way.

Check your car owner menu to see how many KM you need to change transmission oil. If you still don't know, call the dealer, you don't need to bring the car there, just ask them how many KM you can need to change transmission oil.
 
thank you Pigeon, as I know, the previous owner never changed the transmission oil. now the car is about 100KM. I think I'll change the oil first and see what will happen.
 
go do it at Mr. Lube, they're pretty good at it.

cost you about 90$
 
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