Question about 2002 Toyota 4Runner

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My 2002 4 runner check engine light trac off light and vsc trac light are on. i took it to a mechanic and he said it was throwing off transmission codes. i know there is something wrong with my trans but i dont know what? it shifts very rough but only above 50 mph. i was told it was my overdrive shudder but what can i do to fix it? the mechanic gave me this lube guard stuff. i put it in yesterday and now my truck is running worse and now my check engine light is blinking. can some one help?

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  • gordonk59 Jul 08, 2010

    i would like to see what others have to say. i appreciate what you have told me. my truck also has 195000 miles on it.

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  • Master
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If the check engine light is flashing then you have a misfire in the engine. Only worry about the CE light. On toyota, the TRAC off light and VSC light will both come on anytime the CE light is on. So once you fix the reason the CE light is on, the other two will go out. Now, do you know what code was in the ecm. The CE light is flashing so you have a misfire. If you have the ecm scanned it will tell you which cylinder is missing.

Posted on Jul 08, 2010

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  • Toyota Master
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It sounds to me that the transmission is worn out and is in need of a rebuild or replacement. Lube Guard may help some transmissions, but usually will not work. The check engine light can blink when the transmission codes are thrown. I agree with him that far.

I'm surprised that the transmission is still going after 8 years.

Posted on Jul 08, 2010

  • Duane Wong
    Duane Wong Jul 08, 2010

    Wish you luck on getting this one fixed.



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