Transmission trouble no gears at all - Blazer Forum - Chevy Blazer Forums

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Old 04-20-2017, 08:51 PM
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Default Transmission trouble no gears at all

I was driving my 1997 blazer to work yesterday about 1 mile down the road I took a right turn and suddenly lost forward all gears and coasted to a stop thr truck has no 1234 or R no bangs booms or slips previously it just quit. I towed it back home checked fluid first ok not burnt or foamy so I replaced multi switch and ignition switch same problem no change before I spend any more dough does anyone have any ideas where to go next I have multiple codes PO740, PO785,P1860 all mention solenoid circuit any ideas what and where to test for repair 154K on truck 4WD buttons work also worth mentioning the truck was quite sluggish almost like no passing gear for a lengthy time period but would sometimes come back to life on some occasions and run pisser maybe it's some kind of bad ground somewhere any help or good ideas are welcome thx mike. 1997 chevy blazer LT 4WD

Last edited by lac8362; 04-21-2017 at 09:34 AM. Reason: Adding details
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Old 04-21-2017, 10:19 AM
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It's not going to be electrical. The trans will move if able with no electric to it. Sounds like the pump rotor has broken. Very common problem. Have you tried to move it in 4x4LOW. Will it hold in park and not roll away?
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