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  1. #1
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    Default 2006 2.3 Acceleration Issue

    I have been trying to track down an acceleration issue for the past month here is what I have done and a description of the problem.

    I have a 2006 with the 2.3

    First of all there is no CEL

    The issue has to deal with the car bogging when you get on the throttle below 3000 rpms. Once the car heats up to operating temp the problem begins to show itself. It seems that the longer the car idles the worse the problem gets. It starts to happen first in second gear but the longer the car idles it quickly begins to affect 1st gear as well.

    Warmer temperatures seem to make it worse as well. I live in Minnesota so the winter is cold and the problem isn't as bad but now that summer is rolling it is getting pretty bad. In town driving is pretty frustrating.

    I have cleaned up engine grounds, changed out trandy fluid, replaced 02 sensors, replaced thermostat which all improved other issues but this main issue is still present. Keep in mind the first cold start of the day the car runs perfect until it heats up. Sitting at stop lights or letting it idle anywhere really makes the problem worse.

    The best description of the problem I can give is the car sounds like a manual car when floor it in too high of gear and there isn't enough torque and it bogs. Problem is, this is an auto and it happens from a stop in first gear.

    Any help or suggestions would me much appreciated.
    Last edited by Cbaker219; May 17th, 2017 at 09:35 PM.

  2. #2
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    I'm taking the car too the dealer Friday morning to see what they think. Hopefully I don't get the run around

  3. #3
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    Turns out the Cat is melted.... soooo rather than having Mazda fix that for 838 bucks I'm going to do it myself for 200...

    Does anyone know why a Catalytic Converter would melt? I should probably fix that issue as well

  4. #4
    Working Class Hero GerryB's Avatar
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    Default

    How has the car been running? Misfires will kill cats.

    Sent from my SAMSUNG-SM-G891A using Tapatalk
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  5. #5
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    Quote Originally Posted by GerryB View Post
    How has the car been running? Misfires will kill cats.

    Sent from my SAMSUNG-SM-G891A using Tapatalk
    I have not noticed any misfires and unfortunately I replaced the cat and it still has exactly the same issue. The only thing that improves the issue is colder weather

  6. #6
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    So I just took the car to a guy who used to write service manuals for cars and runs his own repair shop and he seems pretty convinced it is an exhaust flow issue. The next thing I'm going to try is disconnecting the exhaust behind the cat and see if there is a clog somewhere there.

 

 

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