Question about 1997 Chevrolet S-10 Pickup

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Sluggish Transmission on 1997 Chevy S-10

The transmission doesn't feel like it's slipping but it is very sluggish on take off or if I start it on an incline. It has been doing this ever since I owned it (4 years now) but I finally want to get it fixed. I ran the diagnostic trouble codes and got : P0740, P0753, 758, 785 and 1860. I saw a post somewhere about the ignition switch could also be a problem. The ignition switch has been replaced twice (neither time but experts). The last replacement works but the key still needs a few twists to remove it. Anyone out there with any advice would be greatly appreciated.

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Here's the information on your trouble codes (which explains the problem you're having).

P0740 Torque Converter Clutch Circuit Malfunction
P0753 Shift Solenoid A Electrical
P0758 Shift Solenoid B Electrical
P0785 Shift/Timing Solenoid Malfunction
P1860 TCC PWM Solenoid circuit electrical

The good news is that it is an electrical problem rather than a mechanical problem. So, you should be able to get the problem taken care of without removing the transmission. The bad news is, you'll probably have to take it to a tranny shop to get the electrical bug worked out (unless you have the knowledge/equipment to test each of the electronic components of the tranny).

Hope this helps and good luck!

Posted on Jan 13, 2009

  • Bob Schmidt
    Bob Schmidt Jul 10, 2014

    I have a '97 S-10, 4.3 with automatc, power windows, etc. All I can tell you about my journey in restoring this truck is that the ignition module rules everything in these trucks...I had two replaced until everything started working properly.

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