Of engine shake, the reason has a lot of, some engine are the meeting when strike a light shakes, be in next idle fast in not any unusual, some engine are in idle fast when those who shake is quite fierce, the likelihood is quiet a little while, tremble, quiet a little while, tremble, however this is one had not heavied repair, also had not cleaned the engine of oil path, the likelihood is caused because of the following reason. . .
One, accumulate carbon to bring about engine to shake more
One, accumulate carbon to bring about engine to shake more maintain carelessly at ordinary times for example, perhaps say to be not done on time maintain, come down for a long time, the section valve that causes engine or atomizer, be engine interior even accumulate carbon overmuch, if be to encounter such situation, the benzine that gush of head of cold start-up fuel injection comes out can be accumulated carbolic place is absorbed in great quantities, the mixture energy of life that causes cold start-up right now is too rare, it is more difficult to be started however, hitting a car to need for a long time so, because wait for the benzine saturation that accumulates carbon to absorb,basically be, ability is normal car, this kind of condition is leaving a car, adsorption is met again in the benzine that accumulates carbon to go up be sucked by the vacuum of engine force is inspiratory to undertake burning inside air cylinder, bring about mixture gas thicken, of engine can light mixture air from time to time rare from time to time is great, the idle after causing cold start-up fast meeting shakes, air temperature is lower, the oily capacity that cold start-up place needs also can be jumped over big.
Handle way: Whether does fast motor have examination idle indigestion carbon, clean oil path.
2, ignition system is unusual
2, ignition system is unusual
Lead of examination sparkplug, high pressure and the working state that order igneous coil, if ignition system is undesirable or if situation of sparkplug flash over is bad, same meeting brings about engine idle fast shake. Handle way: Examination whether sparkplug has accumulate carbon, answer to be handled in time, if such word still is after cleanness, was about to change
3, oil pressure does not stabilize be caused by
3, oil pressure does not stabilize be caused by
If say to had cleaned valve of oil path, section and changed of oily mat and sparkplug and so on, still put in idle fast when automobile body shakes, it is normal to suggest the fuel below the examination offers oil pressure force and inlet pressure sensor at this moment, if oil pump offers oily pressure abnormal or numerical value of inlet pressure sensor is wrong perhaps work position is bad, also be to have cause engine idle fast shaken likelihood. Handle way: Examination oil pressure is normal, when be necessary, need to change in time component
Actually besides above a few reasons, the likelihood has some of car is to appear this kind of circumstance, for instance, car engine has heavied repair, the engine that basically heavies repair, whats had cleaned oil path, and a few damaged component that cannot use had changed new, but car idle fast what shake when cheer is more serious, why? Generally speaking, after in idle fast control system is cleaned and be being adjusted, affirm idle fast control system falls without the circumstance of breakdown, idle the fast motor character of service, system that take energy of life is flat wait, do a power to balance an experiment to undertake judging to engine next, will judge with this method cause idle fast shaken a certain air cylinder, reentry travel breakdown is analysed and maintain next.
