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Automatic mustang stalling out when coasting or coming to a stop

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Old 07-19-2015, 01:55 PM
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Kmoore121
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Default Automatic mustang stalling out when coasting or coming to a stop
I have a 2003 mustang that's my pride and joy just broke 131k a few bolt ons nothing special. Have replaced fuel pump fuel filter and IAC valve. Lately it has been stalling out when coasting or coming to a stop. The rpms fluctuate and drop then the car just dies on me. Any thoughts? Please help
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Old 07-19-2015, 02:15 PM
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JC316
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Sounds like you may have gotten a bad IAC valve, that or you have a pretty good vacuum leak. What brand is the IAC?
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Old 07-19-2015, 07:45 PM
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tadpole1969
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check for vacuum leak around maf also test tps
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Old 07-20-2015, 08:21 AM
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school boy
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Like said above, most knock off iac's bought give people trouble.
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