Thread: 91 Bravada 4.3 liter has extreme high idle speed
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Old 05-28-2009, 08:16 PM
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Chris Stewart Chris Stewart is offline
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Re: 91 Bravada 4.3 liter has extreme high idle speed
It'll likely be anything that can leak air into the engine...broken vacuum hoses, sticking Idle Air Control valve (IAC) or even a sticking throttle.
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