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Re: car engine light on light blinking shaking over due...
Your engine has a cylinder miss-firing, that not only shakes the car but makes the check engine light blink the cylinder number that is missing, don't drive the car this way or u will overheat the exhaust catalytic converter, this can cause a fire.
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Retrieve the trouble codes and fix any problems. if you dont have acces to scanner there are places out there that will scan it for free. Know, however, that just scanning it it's not a diagnosis. Fix the leaks, change the oil and add propper amount and type of oil. The shaking of the engine could be due to misfires causing the vehicle to run rough but in order to find out you need to retrieve the trouble codes. Best bet is to take it to a shop and have it diagnosed.
Please see if there was any shift in your maintenance schedule. It is possible that the oil, oil filter orr fuel filter is due to be changed. Please also check ont he oil pressure switch for a possible fault.
Please check your engine oil- hope the oil change was done recently , if not check the quality of the oil, it can be reduced oil pressure at high RPM that the oil pump is not working well due to a clogged oil filter.
Secondly check the fuel settings and firing timings.
a blinking ck engine light means you have a catalyst damaging misfire. the misfire is also the cause of the shaking and probably low power condition. you need to have the vehicle scanned asap and try to figure out which cylinder or cylinders are misfiring by the code read by the scanner. if you have a po300 code it means you have a random cylinder misfire. if you have a po301 through a po306 then go to the cylinder 1-6 designated by the last # in the code to figure the cause from there. look for a burnt plug wire, remove the proper sparkplug and ck it. also remember to change the engine oil as there is unburned fuel getting into it every minute this condition exists that the engine is running. good luck to you.