I have a 2000 buick lesabre, light on dash states service engine soon, i took it to the garage they said there's nothing wrong. there's must be something wrong or the light wouldn't be on can you tell me what would cause this kaltery
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Re: light on dash states service engine soon
There is something wrong, they may not have had the correct equipment for your car. Even if they had the right scanner and it said nothing....means there is something wrong if the light is on. The computer doesn't put that light on for fun. I would try somewhere else, a lot of auto parts stores will check it for free.
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I have to ask - since you didn't include any other info - do any lights work? If not - you may have a dead battery. You can attempt to jump the car or put a charger on the battery. Once started, you should drive the car w/ minimal accessories on (if jumped to start) to allow the battery to charge. You should have the batter checked for possible replacement or service very soon. Advanced Autoparts will do electrical system testing for free:
If the service engine light is on, it could be a faulty sensor or anything electronical with the car. It may even be something non noticeable. The only way to check exact problem is to run error codes.
It NEVER was the camshaft sensor! Unless, you've removed the engine lately, which I doubt. RUN to Advance Auto Parts and buy a can of "SeaFoam" and add to your gas tank per instructions...drive at least 100 miles and the problem should go away...IF it doesn't you'll have to replace the O2 sensors in the exhaust system...Any good mechanic should be able to do this for much less $$ than the dealership DO NOT go to the dealer for repairs! Good Luck
blue smoke on startup is generally from worn valve guides or bad stem seals on same (not really terrible as long as it stays the same) It will run rough for a minute 'till the oil in the cylinders is cleared out. Service engine light is pretty much on its own timer and does not mean anything but it's there to annoy you into going to the dealer. If O2 sensor was bad, it would eventually put the red check engine light on.