I have trailblazer 2003 I had leak in tramission fluid and fix it now it it goes in first second and does going in overdrive but I got let off the gas pedal then put more gas in it to go in overdrive but rims are racing too
Chris maybe,fluid levels have dropped because of leak,now that being said,it may have picked up trash in your trans filter and cant pump the right amount of fluild threw filter.Check trans.filter.
If filter does not fix your problem,may have scorched bands in transmission from low fluid level. good luck with this.
Autozone sales something like a conditioner that might help the band and even soften the seals it is called TransX and has really proven to be good stuff.....
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