Power steering issue

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Waddell1975, Jun 8, 2023.

  1. Waddell1975

    Waddell1975 Bobtail Member

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    Jun 8, 2023
    Carrollton georgia
    0
    Replaced power steering pump, hoses, lines, reservoir and gear box and still over heats. Was instructed to use oil instead of power steering fluid and told it wouldn't create that issue. All these things are new and still over heats. Any suggestions
     
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  3. uncleal13

    uncleal13 Road Train Member

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    If you changed out the reservoir, did it have an oil filter in there? And if there was, did you change that?
     
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  4. Last Call

    Last Call Road Train Member

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    What is this on ? And every system has a filter as asked in the post above did you change the filter ?
    I mean it sounds like you just started throwing parts at it
    It very well might be you have a internal leak in the the steering cylinder its self which might cause the oil to over heat ..
    More info would be helpful
     
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  5. AModelCat

    AModelCat Road Train Member

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    Power steering cooler on the truck? Dirty?

    @jamespmack mentioned a long time ago about a corroded ground cable causing the electrical system to ground using the hoses.
     
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  6. jamespmack

    jamespmack Road Train Member

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    Flow restriction. I question filter change also.

    Seen it on FL, melting High PSI hoses.

    We need more info.
     
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  7. Ridgeline

    Ridgeline Road Train Member

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    What kind of oil?

    Not motor oil?

    Use a good hydraulic or AT oil.
     
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  8. D.Tibbitt

    D.Tibbitt Road Train Member

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    Synthetic atf I all I use in it.. Like 40 dollars a gallon at Napa. Each drop of that #### must be worth like quarter atleast. Don't spill any.
     
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  9. Last Call

    Last Call Road Train Member

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    Most all the newer systems recommend using hydraulic oil
    If its a older system I would stick with ATF myself
     
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  10. jamespmack

    jamespmack Road Train Member

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    Almost all manufacturers have went to engine oil.
     
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  11. AModelCat

    AModelCat Road Train Member

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    I've only ever seen engine oil or Dex 3 used in power steering.
     
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