Q: Crank sensor was replaced and car still stalling 2002 Mercedes ML320

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I had the crank sensor replaced years ago and all good. Had it replaced last month and SUV still stalling while slowing down. Should I replace it again or have a diagnostic check done? Please help.

My car has 59000 miles.
My car has an automatic transmission.

Hello - if replacing the crankshaft position sensor (CPS) recently was done in response to a "stalling when slowing down problem", I would have a diagnostic check done first before performing other maintenance. Replacing the CPS could have been an incorrect diagnosis, or it’s possible the replacement part is defective - not common, but it happens. First priority now is to determine what problem codes may be set in the engine, then let that knowledge guide the next repair step. I would recommend a engine stalling inspection by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, diagnose this problem, give you an accurate assessment of damage and cost estimate for repairs.

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