2004 chevy trailblazer
Won't shift out of second gear, 1st gear, 2nd gear,
and reverse work fine but 3rd and D just rev RPMs
once it shifts out of 2nd.
There's 134k miles, I regularly change oil and keep up on basic maintenance. The tranny fluid cooling line wore out and I replaced the line after it pissed fluid everywhere about 4 months back, the fluid levels are normal. Idk what the hell!....
It's possible that your transmission is failing, should not have accelerated RPMs in any gear...... let us know. I would have it professionally looked at.
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