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Car lurches forward when shifting the transmission into drive?

Tiny
PAULMASON
  • MEMBER
  • 2014 ALFA ROMEO MITO
  • 1.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 90,000 MILES
Motor revs okay when in neutral, but when I shift the transmission into drive, the car lurches forward harshly and stalls. Mechanics don't seem to be able to fix it, it seems to me like a transmission problem.
Friday, June 9th, 2023 AT 3:48 AM

1 Reply

Tiny
BORIS K
  • MECHANIC
  • 795 POSTS
Hello,

Automatic vehicles use what's called a torque converter to manage transmission fluid and keep your engine running while at a stop.

A common problem on many automatic cars is the Torque Converter Clutch fails to release and causes the car to stall when it comes to a stop. Most of the time it is a stuck Torque Converter Clutch (TCC) solenoid. It could also be a faulty torque converter.

How to test:
https://youtu.be/TTZXXLHAfNQ

Cheers, Boris
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Friday, June 9th, 2023 AT 7:17 AM

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