# 2002 Trailblazer

**URL:** <https://community.cartalk.com/t/2002-trailblazer/62489>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet, trailblazer\
**Created:** [March 11, 2011, 4:11pm UTC](https://community.cartalk.com/t/2002-trailblazer/62489 "2011-03-11T16:11:10Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Bigfish](https://avatars.discourse-cdn.com/v4/letter/b/b2d939/32.png) [@Bigfish](https://community.cartalk.com/u/Bigfish)\
**Post date:** [March 11, 2011, 4:11pm UTC](https://community.cartalk.com/t/2002-trailblazer/62489/1 "2011-03-11T16:11:10Z")

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Any Ideas? I have a 02 Trailblazer that on Monday it gave me a code of P0300 (Random misfire), then two days later P0301 (Number one misfire); (I replaced plugs, boots and cam sensor) ran fine for 1 day now its a P0758 code (Shift solenoid B Electrical)

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**Author:** ![system](https://global.discourse-cdn.com/cartalk/original/3X/1/d/1d47c66a543aa6c5a7873bb2320858f978ff52ed.png) [@system](https://community.cartalk.com/u/system)\
**Post date:** [March 12, 2011, 12:40am UTC](https://community.cartalk.com/t/2002-trailblazer/62489/2 "2011-03-12T00:40:28Z")

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So does it still run fine and it has this code? Or does it run bad and the transmission’s not shifting? Is the misfire gone? P0758 has to do with 2-3 shift solenoid. Or I should say the 2-3 shift solenoid circuit is electrically challenged. Could be anything from wiring, to ignition switch, PCM, shift solenoid, loose connector, transmission. Of course the first thing I would try is unplugging and plugging back in connectors at trans and PCM, clear codes and see what happens.