Question about 1989 Ford Mustang

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When coming to stop car dies out. It's automatic and already cleaned mass airflow - could it be posible i need a bigger battery?

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  • Ford Master
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The battery wont help. when you cleaned the maf, did you check the filter. Dirty filters will cause a shut down at a stop. And the longer you let them go it will start shutting down when you release the gas pedal. You should also clean the inside of the throttle body, use a small brush and clean as far as you can, to include the back of the plate.On some cars I even pulled the idle air control motor and cleaned it up and the hole it goes in.

Posted on May 20, 2011

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No, As long as you're vehicle starts and runs fine with some options being ran off of the battery, you're battery is not the issue, It sounds like a vaccum leak or a fuel delivery issue. Run Some Premium gas in it with fuel system treatment "Cleaner" and see if in a couple of days it gets better. If not you most likely have a vaccum leak, listen for a hissing noise under the hood of you're vehicle while it is running, if you hear a hissing noise than liik for little black hoses that will have a hole, tear or that have just come apart from where they are suppost to be.

Posted on May 20, 2011

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