GMC C2500 P Codes (Powertrain) P0500 - P0599 P0507

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2000 GMC C2500 Idle Control

2000 GMC C2500
Code P0507 "rpm's Too High" Tested The Idle Circuit For Resistance And Was Well Within The Guidlines. (55 Ohms) Sometimes The Idle Will Drop...
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Asked by t.r.troutner

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