Why is my car suddenly not shifting or accelerating correctly?

Asked by Guru6GNG7 Apr 10, 2020 at 10:41 PM about the 2006 Ford Five Hundred SEL AWD

Question type: Maintenance & Repair

My Ford Five Hundred is shifting roughly when I put
it in gear, it is not accelerating, and the check and
mechanic light is on. This even occurred after I put
a new mass air flow sensor in, could it be the mass
air flow sensor harness connector or something
else?

1 Answer

41,240

Hard to say without scanning for the trouble codes. with the check engine light on and mechanic light, a code is stored in the cars system allowing you to diagnose the problem. Have an auto part store do it for free.

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