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2004 Trailblazer LS EXT
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I recently installed an amp and subwoofers in my 2004 LS EXT. shortly afterwards i drove for quite a long while i was in rhe car all day nearly. First I started to notice the engine seemed to lack some power and then i lost oil pressure. I pulled over turned the car off and restarted it and it was back to normal. Secondly the transmission started acting up like i had no power in 1 and 2 gears like it wasnt really grabbing. Then it started a whining sound near the torque converter. When the engine is cold and i first start tge car it seems ok then it doesnt have reverse or 1st gear and power steering goes out as well. I turned the car off and restart and i then can move it in 1st again. Im assuming this is an electrical issue but i really dont know. If anyone has any insight it would be greatly appreciated.
 

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Really sorry to be hearing you're having such issues, but unfortunately this forum is only about the new 2021 Trailblazer! Perhaps some forum members may be able to offer insight though.

Best of luck
 
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