05' Tb, No overdrive,random 6k rpm spikes - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2002 - 2009 TrailBlazer/Envoy Tech > 02-09 Vortec 5.3L V8 Engine and Drivetrain > Transmission Mods

Transmission Mods Performance Transmission Modifications

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  #1  
Old 05-14-2019, 05:14 PM
Ianbarr1 Ianbarr1 is offline
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2005 Chevy TrailBlazer LTZ
Medium Red Metallic 4.2L I6 4X4
Join Date: Mar 2019
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Exclamation 05' Tb, No overdrive,random 6k rpm spikes

First post, here it goes.
Recently bought an 05 trailblazer ltz, 150k miles. At first i thought it was just a rough converter (trans component slipping code), did a lucas treatment, kinda worked for 50 miles without stuttering in rpms while in 2nd and 3rd. Then one day backing out of the driveway (wheel cut to the far left) and it stalls out. I turn her back on and set off only to find that when it goes into 3rd i can hit maybe 50mph, overdrive wont kick on and and it randomly goes from 2k to full redline in .2 seconds while in 3rd. My question is do i need new solenoids and a new converter. from reading post there seems to be alot of different ideas, but i cant find any with this exact issue.
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Old 05-14-2019, 07:11 PM
miketexas miketexas is offline
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2003 Chevy TrailBlazer LS
Black 4.2L I6 2WD
Join Date: Feb 2018
Location: TX
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Quote:
Originally Posted by Ianbarr1 View Post
First post, here it goes.
Recently bought an 05 trailblazer ltz, 150k miles. At first i thought it was just a rough converter (trans component slipping code), did a lucas treatment, kinda worked for 50 miles without stuttering in rpms while in 2nd and 3rd. Then one day backing out of the driveway (wheel cut to the far left) and it stalls out. I turn her back on and set off only to find that when it goes into 3rd i can hit maybe 50mph, overdrive wont kick on and and it randomly goes from 2k to full redline in .2 seconds while in 3rd. My question is do i need new solenoids and a new converter. from reading post there seems to be alot of different ideas, but i cant find any with this exact issue.
No sir you need to rebuild your transmission.
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no overdrive, redlines, shifting problems, transmission issue

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