87 cadillac high idle

1987 CADILLAC DEVILLE
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SALLADUNG
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87 Cadillac idle high when started and will only decrease if brake pedal is pressed. ISC extracts out causing high idle but will not retract. Getting error code 27.
Oct 13, 2007 at 6:01 AM
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BUZZSAW
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[quote:939139cf05="salladung"]87 Cadillac idle high when started and will only decrease if brake pedal is pressed. ISC extracts out causing high idle but will not retract. Getting error code 27.[/quote:939139cf05]

whats the motor? 4.5 or 4.1
Oct 14, 2007 at 3:16 PM
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SALLADUNG
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[quote:b3158967c7="Buzzsaw"][quote:b3158967c7="salladung"]87 Cadillac idle high when started and will only decrease if brake pedal is pressed. ISC extracts out causing high idle but will not retract. Getting error code 27.[/quote:b3158967c7]

whats the motor? 4.5 or 4.1[/quote:b3158967c7]

4.1. Did find one or the leads broken in connector, but also need to know how to test ISC throw program would also be appreciated
Oct 14, 2007 at 3:31 PM
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