Question about 1999 Mazda Millenia

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Idles so rough the car shakes when in drive

I have a 1995 Mazda Millenia S. I have had some problems accelerating previously, but they had cleared up. I was coming off the freeway and my check engine light was flashing. I stopped at a light and my whole car was shaking, and sounding like it wanted to die. I have had the fuel filter replaced, a couple of the sensors replaced, an oil change, new spark plugs and a hose replaced. Can't figure out what the problem is. My acceleration problems cleared after I used some additives to my gasoline a few times. The car was good for a few months but I had noticed it was acting a little sluggish again during acceleration at times. I also had my dust shield rip during a period when we had some rather deep snow. Don't know if something else was damaged that might be the problem?

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  • cindybburks Feb 11, 2009

    Yes the check engine light still flashes, and I did suggest to my son-in-law who is working on the car that maybe it might be water in the fuel. I have also thought about going to Autozone to put it on the computer, and that is something we might do tomorrow if we can. I am going to suggest to him that he check the coil pack and injectors, the coil pack is new, the injectors I had suggested before. He's really good at fixing most things but he's been pressed for time so perhaps your suggestions will lead us in the right direction. Thanks! If you think of anything else let me know.

  • Ronnie Wilson May 11, 2010

    Possible Water in Fuel, No Check Engine Light?



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Headlights,dash lights, interior lights, will not ome on.

Posted on Nov 02, 2010

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Check engine light flashing usually means a misfire. i would have to to run a diagnostic check first. i would recommend getting it put on the computer at autozone (cause it's free) but i don't know for sure if they can run that year model. i know they run 96 and up. but you need to find out what cylinder is misfiring and i can almost bet you its a coil pack or injector. if autozone can't do it you'll have to call around to your local mechanic shops and find out who charges less to put it on a computer, usually $75 or more. i have one i would only charge you $50 but that doesn't do you any good lol.get back with me and let me know what you fid out.

Posted on Feb 11, 2009

  • tomcat2272 Feb 11, 2009

    you can probably rule out water in the fuel depending on how may tanks of gas you've ran through it but it doesn't take much to make it run rough. usually it will spit and sputter and won't hardly want to go at all. if you've ran 3 or 4 tanks of gas through it it's probably okay. if not put about a half of cup of rubbing alcohol in the tank to a full tank of gas and it will clear up.



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