Q: Engine chugging

asked by on June 03, 2016

Car drops idle and chugs in drive and idle normal when in neutral. Acceleration is slower than usual.

My car has 300000 miles.
My car has an automatic transmission.

A couple of common items can cause the idle to drop in drive. Most likely are:

  • the throttle position sensor
  • fuel pump
  • torque converter
  • transmission
  • the engine mounts

A qualified technician, such as one from YourMechanic, will be able to diagnose this fault and perform any repairs required.

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