【求助】99 FORD TAURUS 启动问题

[jerry1230]

经常在天气暖和，阳光灿烂的时候启动不了。症状是： 转速表上去到1000, 马上就掉下去，熄火。 然后，如果让车子休息1－2 小时， 重新启动，又没问题。

在天冷的时候，一般都没问题。

不知哪位大侠有过类似经验？ 谢了

[加拿大民工]

怠速阀的问题可能性很大

[zq_frank]

怠速阀的问题可能性200%
可以把怠速阀拆下来清洗。

[有门!]

是的，怠速阀可能性很大，同时检查EGR。

[jerry1230]

作者: 有门!

是的，怠速阀可能性很大，同时检查EGR。

怎么找怠速阀？另外，什么是ＥＧＲ，　如何检查？　多谢。

[有门!]

作者: jerry1230

怎么找怠速阀？另外，什么是ＥＧＲ，　如何检查？　多谢。

EGR是控制尾气的，一般与怠速阀贴近，所以会直接影响怠速阀的清洁。怠速阀通常位于THROTTLE BODY上，是BYPASS THROTLLE BODY PLATE的进气阀。具体作用和原理可以到网上搜寻。

[jerry1230]

作者: 有门!

EGR是控制尾气的，一般与怠速阀贴近，所以会直接影响怠速阀的清洁。怠速阀通常位于THROTTLE BODY上，是BYPASS THROTLLE BODY PLATE的进气阀。具体作用和原理可以到网上搜寻。

今天天热，车子居然半路抛锚，可能因为我把空调开了。然后就启动不了。停在路边两小时，就好了。

有门，我已給你发了一条短信，如果方便，请給我回个电话。 谢了。

[Jammy168]

copy Q&A from tarus forums:

8.50. Questions and Answers
Ford Taurus Hard To Restart When HotQ. The car has a problem restarting after it has been run, but not always. It seems to go in waves, and may be related to the outside temperature? When we have this problem it will always start again after leaving it sit for a half-hour to an hour. So, if we are out and about and need to stop at say a store and run in for a minute, occasionally it will not start again when we come back out.
Let it sit and then it will start up again. At first when it will not start, it will start up barely and run very sluggishly at a very low idle. It does not seem to help to try and goose it to give it some gas, it will just bog down and quit. Eventually it just won't start at all until we let it sit.
Like I say, it may be related to the temperature. We did not have this problem all winter, but now that Spring is here and the days are warming up, it is happening again.
We live in Minnesota. Any thoughts? Our mechanic tells us he cannot diagnose it if it will not replicate for him, and of course we have not been able to get it to happen when we bring it to him! Any ideas? We have replaced the fuel filter, air filter, plugs and wires.
· 1999 Ford Taurus
· 3.0 liter V-6
· Automatic transmission
· 108,000 miles
· Fuel Injection
· ABS brakes
· P/S, A/C, Cruise control
· Rack and pinion steering
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A. Hard starting based on temperature is almost always somehow related to the air fuel ratio not being correct for the current conditions. On older carbureted cars when the choke would stick closed they would be hard to start when hot and start easy when cold.
On modern electronically fuel injected vehicles the causes multiply exponentially. In your case you would need to check your coolant temperature sensor, intake air temperature sensor, and check for fuel pressure leak down caused by a hung fuel injector. I suspect that you will find one of these to be the cause of your incorrect air fuel ratio problem.
Added 4/13/04
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Mr Ciulla, I just wanted to thank you for the reply about the Ford Taurus. I changed out the Coolant Temperature Sensor, and problem solved! Wow! Thanks again for the expert advice!
Sincerely,
Kean

[sailing2003]

和我车毛病差不多。我去CT买了那种喷的罐子洗了怠速阀和节气门，效果不是很明显。是不是一定要拆下来洗啊。