Rough idle?

2007 DODGE CHARGER
200,000 MILES • 3.5L • V6 • 2WD • AUTOMATIC
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[email protected]
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Hello, I bought the car in February, and I fixed a few things since I bought it. I’ve replaced both fuel pumps, fuel injectors, spark plugs, coils, MAP sensor, and rocker arms assemblies. I he run was running fine and then car will idle at 500 RPMs and surges a lot. I scanned it for pending codes and no codes popping up. I’m not sure what to check to see which parts have failed. I have attached a video of how the car acts and sounds when it dropped to 500 RPMs.
Oct 19, 2024 at 4:05 PM
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JACOBANDNICKOLAS
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Hi,

Oftentimes, a rough or erratic idle is the result of an engine vacuum leak. Have you checked to see if there are any leaks?

If not, start there. Here is a link that explains how to check and repair an engine vacuum leak.

Try this and let me know the results:

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

Take care,

Joe
Oct 19, 2024 at 8:52 PM