1995 GMC Yukon idle speed

1995 GMC YUKON
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RANDALM
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Engine problem
1995 GMC Yukon V8 Four Wheel Drive Automatic 147 k miles
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seems to be idiling to fast. 850rpm in park and around 500rpm in gear with my foot on the brake. what should the correct speeds be?
Dec 28, 2007 at 11:50 AM
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RASMATAZ
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The computer controlled idle calls for 550rpm in drive mode could be a sticking throttle plate/accelerator linkage maybe its due for a throttle body cleaning
Dec 28, 2007 at 11:57 AM
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