This could be related to the compressor replacement, and the easiest way to find out is to just remove the drive belt and start the engine to see if it still runs rough.
If it does then it is not related to the compressor itself.
However, if it does run better then we need to replace the compressor again because more than likely the clutch is dragging or locked.
https://www.2carpros.com/articles/replace-serpentine-belt
However, I suspect we need dig further on the possible causes of the rough running because the compressor is most likely not the cause. This means we need to check for vacuum leaks and then misfires.
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
https://www.2carpros.com/articles/engine-misfires-or-runs-rough
If this all checks out the next likely thing to check is the fuel pressure.
https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator
Once we know all this info we will have a better direction to go, so let's start with this and let us know what you find and we can go from there. Thanks
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Wednesday, December 1st, 2021 AT 10:47 AM
