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Gilbert Brito SR.
Gilber ... 3/23/2010
1994 Toyota Corolla DX 4Cyl1.8L - Engine
still having same problem with speedometer readings replaced speed sensor did not correct the problem any advice
7 Answers
  • Bobby
    Bobby 3/24/2010
    Next step would be to test the cluster, can be complicated though you'll need the wiring diagram then check the voltage at the cluster to see if there is a problem there. Try testing at the sensor too make sure it is getting proper voltage and ground.
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  • Bobby
    Bobby 3/24/2010
    what is happening with the speedo exactly?
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  • Gilbert Brito SR.
    Gilbert Brito SR. 3/24/2010
    speedometer sets at 0 mph until about 40 to 45 mph then it races off to 60mph get below 60 mph it goes back to 0 mph
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    Gilbert Brito SR.
    irnbru1 2/16/2011
    I am having the exact same proble would like to know if you found a fix that worked.
  • HouseCallAuto
    HouseCallAuto 3/24/2010
    In a database of problems and confirmed fixes I see many many speedometer problems with Corolla. It seems that almost all have posted confirmed fixes of replacing the instrument cluster (speedometer) so the handwriting is on the wall. The test procedure is not for the average guy. It is lengthy and requires driving the vehicle while monitoring three different circuits with meters. I say change the speedo.

    Kevin
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  • Gilbert Brito SR.
    Gilbert Brito SR. 3/25/2010
    Thanks Bobby & Kevin for your information how difficult is replacing the speedo or should i take it to a shop ?
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  • HouseCallAuto
    HouseCallAuto 3/26/2010
    If you're a bit mechanical and patient (because you are taking out small screws and such) , you can do it. Make sure that you just have the proper repair manual in front of you with step by step. The best manual of course would be the one from Toyota. By the way, many larger libraries have ALL the factory repair manuals in the reference section. And they have copy machines.

    Kevin
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  • Gilbert Brito SR.
    Gilbert Brito SR. 3/27/2010
    Thanks kevin for the information and getting back so quickly I may try to tackle the job myself thanks again Gil.
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