Breakdown phenomenon:
A car of tower of all alone accept 3 years May, 2.7LV6 engine. Idle fast quiver, when quickening, spit, risk black smoke, power is insufficient, shift gears develops a car, volume of bad news oil is high.
Breakdown diagnoses with eliminate:
Be opposite above all engine is exterior each vacuum tube, circuit inserts first class to undertake checking, have without discovery fall off and problem, do crock test again then, discover 1 crock, 3 crocks of jobs are not apparent, dismantle check sparkplug and crock wire, sparkplug dielectric has apparent black dark grain, it is to have clearly escape electric appearance, change sparkplug and cent crock line, idle fast improve somewhat, but when quickening, return dash forward, the car develops when shifting gear, . Tear open next sparkplug again, detect the outfit after cylinder pressure is normal answer sparkplug. Tear open next atomizer to clean atomizer with atomizer cleaning machine, the fuel that discovers crock and 1 3 crocks nozzle are ejective is tick shape, content is changed undesirable. After the course cleans period of time, crock and job of 1 3 crocks of atomizer return to normal, content is changed good. Do protect squeezing ramming check to also do not have a leakage phenomenon. atomizer outfit answer arrives after engine test-drive, idle fast smooth, quicken strong, each operating mode is good, trouble removal.
Analysis:
Via enquiring a car advocate the one small gas station that outer ground is away on official business before long before be informed this car has added benzine, breakdown appeared before long later, because add,the happening that can think of this breakdown from this is note inferior benzine be caused by. Because the impurity inside inferior benzine makes atomizer dirty,block up, fuel injection quantity decreases relatively, computer basis in all bear, increase fuel injection arteries and veins wide, make of fuel gush overmuch, cut content to change undesirable, adding sparkplug and job of high tension line undesirable, combustion is so undesirable, cause quickly dash forward, risk black smoke, oily bad news also is followed over added.
News source: Steam matchs author of news of business affairs network: This station reporter
