Question about Oldsmobile Cutlass Ciera

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My car has been acting strange. The brake light will cut on and off, but the is no problem with the brakes I have had them check, and I maintain thee needed amount of brake fluid in the car. Today the car began to shake and cut off several times before I got home. I have a feeling it needs spark plugs but cant be sure.

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The brake light problem is likely the fluid level sensor - either mounted in the cap or in the side of the master cylinder. Typically these sensors are not expensive or difficult to replace and doing so may cure the problem. You did not state what vehicle or year you have so I cannot advise which type of sensor you have. Looking at the cap will tell which kind, since the cap mount type has a small wiring harness in the cap. You may need the VIN ( Vehicle Identification Number) to get the correct sensor and your local parts store should be able to tell you where exactly it is. As far as the shaking and cutting off, it may not be the spark plugs - it could also be the fuel filter needs changing, or plug wires, dirty or plugged EGR ( Exhaust Gas Recirculation) valve,Throttle Position Sensor ( not very likely), or Mass Air Flow sensor among other things. A hands on diagnostic is needed to be sure of the problem - you could throw a lot of money at this problem and still not cure it. Is the check engine light coming on? If so, then a code scanner can be connected that will guide you to the problem. Most shops will scan your vehicle for little or no fee, hoping for the repair job and, depending on your skill and financial condition, it may be the best route to go for fixing the problem. I hope thias helps and please rate my solution - and Thanks for using Fixya!!

Posted on Jan 04, 2011

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