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Code of 01740/open circuit torque converter solenoid #1

Tiny
OLDCLUNCKER
  • MEMBER
  • 2002 CHEVROLET VAN
  • 200,000 MILES
Code 1740 torque converter solenoid circuit open /fix said replace ignition. Switch did code keeps coming back I thought it might be ignition switch because some time it will not start. It also has a code p0171 and p0174 I have re placed all o2 sensors and fuel filter and cleaned mass air flow.
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Saturday, August 10th, 2013 AT 1:58 PM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
Check fuel pressure first with a gauge 171 and 174 are related to low pressure. Ther eis no code 1740 it 0741 and that can be a bad converter clutch. Also for 171 check for exaust leaks prior to o2 sensor or vacuum leaks etc.
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Sunday, August 11th, 2013 AT 10:44 AM

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