# Transmission forward in all gears help

**URL:** <https://community.cartalk.com/t/transmission-forward-in-all-gears-help/158460>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet, hhr\
**Created:** [February 13, 2020, 5:19pm UTC](https://community.cartalk.com/t/transmission-forward-in-all-gears-help/158460 "2020-02-13T17:19:31Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![bethelconstable\_163276](https://avatars.discourse-cdn.com/v4/letter/b/3d9bf3/32.png) [@bethelconstable\_163276](https://community.cartalk.com/u/bethelconstable_163276)\
**Post date:** [February 13, 2020, 5:19pm UTC](https://community.cartalk.com/t/transmission-forward-in-all-gears-help/158460/1 "2020-02-13T17:19:31Z")

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Hello all, I am finally joining the site after reading it for some time now. I have just completed replacing shift solenoids on my 2011 HHR. I now have a transmission that wants to go forward in all shift positions. It shifted fine before repair. I had the P0700 and P0842 combo plate. I decided to replace the pressure switch manifold, pressure control solenoid, and both shift solenoids. I also replaced the trans pan and filter. My question is; does anyone think I may have reversed the plugs between the two solenoids? I have checked all of my external connections and fluid level. Any input would be greatly appreciated.

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**Author:** ![old\_mopar\_guy](https://avatars.discourse-cdn.com/v4/letter/o/6bbea6/32.png) [@old\_mopar\_guy](https://community.cartalk.com/u/old_mopar_guy)\
**Post date:** [February 13, 2020, 8:08pm UTC](https://community.cartalk.com/t/transmission-forward-in-all-gears-help/158460/2 "2020-02-13T20:08:19Z")

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If “it shifted fine before repair”, why did you change those solenoids?

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**Author:** ![bethelconstable\_163276](https://avatars.discourse-cdn.com/v4/letter/b/3d9bf3/32.png) [@bethelconstable\_163276](https://community.cartalk.com/u/bethelconstable_163276)\
**Post date:** [February 13, 2020, 8:47pm UTC](https://community.cartalk.com/t/transmission-forward-in-all-gears-help/158460/3 "2020-02-13T20:47:32Z")

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As my post stated I had 2 codes. These codes are for the pressure manifold switch assembly. The solenoids are prone to failure in these GM transmissions and for $15 each I decided to replace them due to the 4 hours of labor to get the cover off. Hope that answers your question.

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**Author:** ![Barkydog](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/barkydog/32/2470_2.png) [@Barkydog](https://community.cartalk.com/u/Barkydog)\
**Post date:** [February 13, 2020, 8:53pm UTC](https://community.cartalk.com/t/transmission-forward-in-all-gears-help/158460/4 "2020-02-13T20:53:14Z")

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My first guess would be to check the linkage if applicable, make sure it is not being obstructed or out of range. I am not familiar enough to know the transmission, perhaps looking at a schematic to see what gets it into reverse could be helpful if it is electronically controlled. Assuming all is fine except reverse.

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**Author:** ![bethelconstable\_163276](https://avatars.discourse-cdn.com/v4/letter/b/3d9bf3/32.png) [@bethelconstable\_163276](https://community.cartalk.com/u/bethelconstable_163276)\
**Post date:** [February 13, 2020, 10:28pm UTC](https://community.cartalk.com/t/transmission-forward-in-all-gears-help/158460/5 "2020-02-13T22:28:46Z")

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Hey there Barkydog, the transmission literally tries moving forward in all positions, drive, neutral, reverse, and even in park it lurches if revved up. I’m assuming I did something stupid so looking forward to tearing down again. If someone thought it was crossed solenoids I would just swap the wires in the external plug to fix but, the more I look into it, the more I think I need eyes inside again.
