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Old 04-03-2010, 11:39 AM
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Chris Stewart Chris Stewart is offline
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Re: 88 Dodge d100 tps problems maybe

The idle air control valve(IAC) controls idle air to the engine. Sometimes they get clogged/sludged up and stick in open or closed position. Sounds like yours is stuck closed. Remove it and clean it with brake cleaner. Spray some cleaner inside the hole where the IAC fits, re-assemble then test ride.
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