2006 Jeep Grand Cherokee 3.7l has a rough idle when stopped. I can be at a stop sign, red light, or just parked with the engine running. The RPMs drop under 500, the Jeep shakes, and feels like it's going to stall/turn off. I have cleaned the throttle body, replaced the iac, and replaced the tps. I'm still having the problem, and I'm not sure what to check next.
My car has 154000 miles.
My car has an automatic transmission.
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