How hard is the hatch supposed to slam shut?

Discussion in 'Gen 3 Prius Main Forum' started by RollinBad, Mar 30, 2016.

  1. RollinBad

    RollinBad Junior Member

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    newbie to my 2010 prius III here. Just got it about a month ago and I've noticed that when I go to close the hatch, it slams pretty hard. I feel like the struts will hold up the hatch to about 2/3 of the way down then it just drops really hard and slams shut while rattling the spoiler so hard I feel like it's going to fall off. Is this normal, or should I look into maybe replacing the struts? I dont' know anyone else in real life who has a prius so there's no way for me to compare this anomaly. Any insight would be appreciated! Thanks in advance!
     
  2. Mendel Leisk

    Mendel Leisk Titanic Social Director

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    That doesn't sound right. Our shocks lost the ability to quickly run the hatch up full height, typically take a bit of "help", but coming down is pretty controlled, the hatch doesn't slam, just fast enough to latch.
     
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  3. bisco

    bisco cookie crumbler

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    you can get aftermarket replacements on line for a reasonable price.
     
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  4. RollinBad

    RollinBad Junior Member

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    Good to know...thanks! I think I'll try replacing the struts first and see where that gets me. Hopefully will fix the problem; I can't imagine anything else that would be causing this.

    Yea, I'm definitely going to look into it. Seems like a pretty painless fix.
     
    #4 RollinBad, Mar 30, 2016
    Last edited by a moderator: Mar 30, 2016
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  5. bisco

    bisco cookie crumbler

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    there are a few threads here that you can search.
     
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  6. BZzap!

    BZzap! Senior Member

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    FYI, you should have to pull the hatch down until gravity overcomes the strut at about the half way position. Even at that you have to assist the hatch with enough momentum to make it latch. In short, your hatch struts are worn out.
     
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  7. JC91006

    JC91006 Senior Member

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    Buy new struts, that'll fix your problem.
     
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  8. maurices

    maurices Member

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    I have found the following to be of help:
    StrongArms for 3rd gen Prius
    Part # 4686 struts have 140LB of lifting force each.
    Part # 6244 struts have 93LB of lifting force each.

    They both compress to 11.65" but the 4686 extend a bit more 19.65"(4686) vs 19.40"(6244).
     
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  9. RollinBad

    RollinBad Junior Member

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    Do you know how this compares to Stabilus? I think those are the ones on my car already (OEM?).
     
  10. alanclarkeau

    alanclarkeau Senior Member

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    I had a wagon with failing struts a few years back, and I had re-gassed struts installed quite cheaply - they were still fine 3 or 4 yrs later when I sold the car.
     
  11. RollinBad

    RollinBad Junior Member

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    Update on hatch strut issue:
    I replaced the two rear ones and now it works great! No slamming. I have to actually push down a little to get it to close. (y)(y)(y)
    I purchased Stabilus Lift-O-Mat part # SG329044 from Oreilly ~$50

    Thanks everyone!
    IMG_6102.JPG IMG_6103.JPG
     
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