Newbie here. Please help!! ::)

Discussion in 'LS, LT, LTZ' started by msecrets, Mar 26, 2020.

  1. msecrets

    msecrets Junior Member

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    Hello. Thanks for having me. I have an 09 Cobalt LT with 135k. Excellent inside and out, except the speedometer doesnt work, theres a power steering light on the dash and the check engine light is on, and the cruise control doesnt work. The VSS is brand new, grounded the tcm, cleaned and checked connections etc and still no changes. Power steering seems fine, other guages work, there is a harder than normal shifting it seems, going from 2nd to 3rd, otherwise it drives like a brand new car. Any ideas?
    If the TCM is bad or going bad, it wouldnt go into gear right? Recently prior to my buying the car, the rear abs sensor and wheel bearing were changed, and a new battery installed. could this have caused the speedometer issue? Thanks everyone.
     
  2. rustynut56

    rustynut56 Junior Member

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    i have a 09 lt mine was doing the same thing . i took plugs off ecm tcm put some diecltric grease on them pluged back in went to bcm unpluged and pluged back in again. cleared codes been drivering all week so far so good. the only thing i didnt do was put the covers back on ecm tcm and bcm leaving the covers off helping with air flow who knows going to put them back on this weekend and see what happens. give it a try .
     
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  3. msecrets

    msecrets Junior Member

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    Good morning. Thank you! Excellent idea. I'll get right on it and ill let you know how it goes. I hope you and your loved ones are doing well....this quarantine bs really sucks up here in washington!!
     
  4. rustynut56

    rustynut56 Junior Member

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    i in iowa hope it works for you
     

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