一辆东风EQ140汽车,采用的是EQ6100—1型发动机,该车在夏天开三、四千米,便出现发动机熄火现象,且熄火前排气管大量的冒黑烟、“放炮”,最后熄火再也起动不着。将汽车推到树荫下停车半个多小时,汽车又能起动,起动后的发动机排气管仍有大量的黑烟冒出,当排气管发出“放炮”声后工作正常,但行车三、四千米上述故障又重复出现。 A Dongfeng EQ140 car, using the EQ6100-1 engine, the car in the summer to open three or four kilometers, there will be engine stall phenomenon, and a large number of black smoke extinction before the exhaust pipe, “blasting” and finally turn off No longer start again. The car pushed into the shade more than half an hour to stop the car can start, start the engine exhaust pipe is still a large number of smoke emission, when the exhaust pipe issued a “blasting” sound after work, but driving three , Four kilometers above the recurrence of the above problems.