Question about 1993 Subaru Legacy

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Losing power up one particular long hill

My engine runs ok except going up one long hill where it loses power at the same place almost every time. Any ideas anyone?

David,
Sydney, Australia
my 93 legacy loses power on long hills, and when it's ready to shift to 5th on the highway. four mechanics can't figure it out! she runs great the rest of the time.

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  • Anonymous Feb 09, 2009

    Hi David,

    Did you work the problem out. My 93 liberty is doing the same thing. Solutions on the Internet point to sticky valves.

    Cheers,
    Adam

  • AKIC Feb 09, 2009

    Hi David,

    Did you work the problem out. My 93 liberty is doing the same thing. Solutions on the Internet point to sticky valves.



    We have tries MAF, knock sensor, Carbon Cleaner, Coil, Fuel Injectors etc

    Cheers,
    Adam

  • jacksubaru Mar 30, 2009

    I've got the same problem, 91 Subaru Liberty just got serviced, new plugs, high tension leads all ok, it only happens going up long hills. The power cuts out and the car runs really rough, but if I pull over and idle for a few minutes it works fine again, and it works great the rest of the time. 

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It sounds like a tranny problem. Without more info kinda hard to diagnose. The simplist thing to check is tranny fluid. If its low, going up a hill will pull fluid out of the torque converter. It could be the converter itself. It could possibly a fuel problem, but unlikely. Hope this helps. John...

Posted on Jan 10, 2009

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Losing power up one particular long hill


If there are no lights or ECU codes, esp the water temp sensor, then the usual remedies are to use injector cleaner, and clean the throttle body, check for water in the fuel filter (and the fuel tank). Make sure the engine oil level is full, and so on. I assume a hill outside Sydney doesn't get enough altitude to be an issue, unlike a hill outside of say Denver, CO that goes up near 10,000ft above sea level where you should expect a significant power loss.

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