My car idles too slow when I first start it and runs rough until it warms up. on 1993 GMC Yukon

How do I clean the throttle body?

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1 answer 1 comment
spray the cleaner where the air is sucked in while you work the throttle with your hand..
I cleaned the throttle body but it still idles too slow, anyone have more advise? What could it be? What could it be?