2010 Propane smell after sitting a couple days , 120K miles

Discussion in 'Generation 4 - Maintenance & Troubleshooting' started by shaker281, Jan 13, 2020.

  1. shaker281

    shaker281 SHO Member

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    Drove Friday morning , did not smell until Sunday evening. Nothing on floor beneath PTU, but haven't thoroughly inspected for sign of leakage yet. What should I be looking for? Not PP car.
     
  2. SM105K

    SM105K Streetlight Grand Prix Champ/ IG @egocheckersho

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    A clogged vent tube. I would also suggest changing the PTU Fluid.
     
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  3. SHOdded

    SHOdded SHO Member

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    Likely from the PTU vent, must be pretty light since it took a couple of days to manifest. Now there could be other reasons such as an open exhaust vent flap, moisture/mildew buildup in the evaporator, or old cabin filter.
     
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  4. luigisho

    luigisho SHO Member

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    Classic PTU vent issue. Get the fluid changed and all the rest sooner rather than later.
     
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  5. shaker281

    shaker281 SHO Member

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    Thanks guys, wasn't sure if it had a vent tube or not on 2010 (non-PP) as most posts I saw were later models. And it took a couple days to notice, so yeah, thought that was weird.

    I have changed the fluid twice already, once around 99K and the second time at 113K, both times with RP. Cabin filter and intake filter changed at 119K. RDU fluid changed at 116K.

    Given that this is an early 2010 model, sold Sept 2009, is it only accessible from under the vehicle? Like a vent cap? Or is there a hose/tube with a cap on it that extends up alongside the engine?
     
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  6. SHOdded

    SHOdded SHO Member

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    It has a vent cap, just not a vent tube, that came later on. Not sure exactly when. Unless you bought the SHO used, and the PO installed an extension, yeah, you have to deal with the cap IF needed. I don't think it is needed. If it is venting, it is working. You do need a better fluid. Try Redline Lightweight Shockproof (both PTU & RDU). It has higher detergency and thermal tolerance.
     
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  7. b4black

    b4black SHO Member

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    If you changed your fluid just 7k miles ago, I wouldn't worry. It hasn't gone bad in that short amount of time.
     
  8. shaker281

    shaker281 SHO Member

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    Ok, since I have changed it twice in the past 20K with Royal Purple, I can ignore the odor? Am I reading that correctly? And wait for any discharged lube to just burn off?
     
  9. SHOdded

    SHOdded SHO Member

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    If you think there is a possibility you may have overfilled it, then you could elect to just keep a nostril out for it. If it gets worse, address it. There is a writeup over on EBPF if you want to replace the vent cap with the vent extension.
     
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  10. shaker281

    shaker281 SHO Member

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    OK, cool. I thought maybe something was clogged or had come loose perhaps, but have no desire to put the car on ramps in 20 degree temps and root around up there if it is not necessary. I'll keep a "nose" on it and check it when the weather improves in a couple months. At that time I may try the RL fluid that you suggested.

    Thanks again to everyone for their input.
     
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