meiln

你好，我的车是94年chrysler concorde, 去年年底买的，冬天运行正常，可是，到了今年夏天，每开车一段时间，车热到一定程度时，（但发动机温度显示正常），一踩煞车，就熄火。起初，再打火一点就着，可后来这种情况变得越来越频繁，而且越来越难启动。最近，要等佷长时间（如3-4个小时）后，待车完全冷却后，才能打着火。<?xml:namespace prefix = o ns = "urn:schemas-microsoft-comfficeffice" /><o:p></o:p>

启不动时，打火的现象是：听起来什么都正常，就是发动机不能运转起来。<o:p></o:p>

而且，另一个奇怪的现象是：当车变得越来越热时，方向盘也变得越来越重，越来越难操纵。<o:p></o:p>

我不懂车，不知描述的清晰不？急盼赐教，谢谢！

meiln

其他的大侠呢，给点建议吧

DonCherry

Your car seems run too rich (higher gas mixture). When cold, it''s ok. But when
hot, the engine need lean gas mixture. There are many possible problems, such
as clogged air filter, malfunctioned temperature sensor, bad coolant system, bad
MAF sensor (空气流量sensor), etc. When engine produce less power, then your steering wheel feel heavier. Same reason when bad mixed, it's hard to start.

You should drive it until hot, then, drive to dealer or good garage, let them to
decide. Repairing could be cheaper if you are lucky.

doudou100

My car has the same problem with you, I ask the professional dealer to check it. the EGR valve is wrong. Check it.