90 Silverado high idle

Getting a high idle. Have replaced Idle Air Control, Throttle Position Sensor and MAP Sensor. I have sprayed carb cleaner aournd TBI, hoses and connections to check for vacuum leaks. No idle change. What else to do?

Reply to
biffula
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Take to dealer Get it fixed properly.

Reply to
Steve Barker

Are those mutually exclusive?

Reply to
Stormin Mormon

Take to dealer

Get it fixed properly.

Personal experience says yes.

Reply to
purple

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