Dodge Repair Questions? Ask a Mechanic for Answers ASAP
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Since you have replaced the IAC and you still have high idle then you likely have a vacuum leak. Can you start it up and take the oil fill cap off and tell me on a scale of 1 being slight to 10 being extreme of how much vacuum you feel when you place you hand over the oil fill..
What is the IAC steps when watching with a scantool? Was it a new OEM or aftermarket IAC? Has the PCM been updated? Any codes?