1994 Buick Lesabre P0740 Torque Converter Clutch Circuit Ma

1994 BUICK LESABRE
108,000 MILES • V8 • FWD • AUTOMATIC
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WBROWNING
  • MEMBER
  • 1 POST
ONLY IN GEAR THE ENGINE SOUNDS LIKE IT IS KNOCKING SOMETIME BAD. OUT OF GEAR NOT REALLY A KNOCK PUT CAR ON CODE READER AND P0740 SHOWED UP BUT NO CHECK ENGINE LIGHT HOW DO I FIX THIS ??
Apr 28, 2008 at 11:28 AM
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DENNYP
  • ✓Experienced Mechanic
  • 1,824 POSTS
Sounds like the torque converter took a dump. Listen to it from underneath and verify the noise is from the converter.
Apr 28, 2008 at 2:46 PM
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