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lost 3rd & 4th gear

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Old July 15th, 2023 | 5:28 PM
  #1  
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Default lost 3rd & 4th gear

2002 Avalanche 8.1 Vortec

When the instrument shut down under startup, car does not shift to 3rd and 4th gear. Only first and second is working. Even in manual.
When I operate the gear lever, the instrument starts up again. Or if I just start to drive.

Some rarely times, instrument doesnt shut down under startup, then also transmission work fine as well.

Have made new ground to instrument, fromt battery to engine, and from battery to chassis.
Have checked lots of solderings in instrument cluster. Instruments works all fine until I crank the engine.

Have a look at

Last edited by mountainmanjoe; July 15th, 2023 at 6:06 PM.
Old August 27th, 2024 | 12:52 PM
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