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  1. New tires

    LF (2015+) Sonata/i45
    Another option is to acquire a set of All-Weather tires (not All-Season tires) as these tires can be run all four seasons. Do a bit of research and this might fit the bill. Consumer Reports did a report on these and their recommendation (in order of preference) was; Michelin CrossClimate +...
  2. Would you buy another Sonata?

    LF (2015+) Sonata/i45
    I wasn't referring the the higher revs associated with Sport Mode, I was referring to higher revs that can be obtained by manual shifting and also the excessive revs related to punching the throttle.
  3. Warranty Limits Confirmed

    YF (2011-2014) Sonata/i45
    Used motors are expensive ($1500 and up, usually up) and inherently unreliable since the used motor acquired has the same failure issues. Rebuilding is not an option, labour costs are too expensive. Where are you located, perhaps I'll buy it off you.
  4. 2015 Sonata User Manual

    LF (2015+) Sonata/i45
    Thanks, perfect.
  5. 2015 Sonata User Manual

    LF (2015+) Sonata/i45
    Need a 2015 User (Owner's) Manual. Did a search here and found the link to Hyundai online registration but the online registration provided manuals for most years but not 2015.
  6. Direct Injection Carbon Buildup

    LF (2015+) Sonata/i45
    That's interesting since one might perform this without removing the head. The intake camshaft would have to be loosened off sufficiently to permit valve closure and intake manifold would have to be removed. Blasting media though would have to be guaranteed completely removed.
  7. Direct Injection Carbon Buildup

    LF (2015+) Sonata/i45
    I have removed heads, soaked the inlet valves in situ (sometimes for a few days) in a variety of solvents, and nothing removed the deposits. The caveat is that all those heads had at least 70k miles on them and the deposits were well established and possibly 'baked' on by hundreds of hours of...
  8. Direct Injection Carbon Buildup

    LF (2015+) Sonata/i45
    I don't have an opinion and you could be right, diamonds being an obvious example. If carbon they are like no carbon deposit I know of, the deposits have to be ground off.
  9. Direct Injection Carbon Buildup

    LF (2015+) Sonata/i45
    I've disassembled a dozen of these engines (most with damaged cranks/connecting rods) and neither carbon buildup nor sludge has been an issue. The intake valve deposits are invariably of unknown material but don't appear to be carbon and they are VERY hard.
  10. Is the Theta II Engine Issue Resolved for 2018?

    LF (2015+) Sonata/i45
    Your dealer is snowing you, I've never seen an issue with bottom end bolt torque when disassembling these engines.
  11. Is the Theta II Engine Issue Resolved for 2018?

    LF (2015+) Sonata/i45
    The consensus I've found is that it's oil starvation to the conrod big end bearings. The visible physical changes to subsequent iterations of the Theta ll engine appear to support this opinion: beefier conrods, different pistons, different oil balancer/oil pump. It's possible detonation was a...
  12. Rear Camera Replaced

    LF (2015+) Sonata/i45
    Replaced entire assembly, inclusive of trunk handle. Link here; https://www.ebay.ca/itm/293312478556 The camera itself is available, usually from Asia, though I couldn't sufficiently ascertain which one was the right one so purchased the assembly. There are several release tabs that are...
  13. I creamed a deer this morning

    LF (2015+) Sonata/i45
    Not certain of the paint for your vehicle but the last 2014 we painted used a two-part base coat followed by clear coat. The base coat with this paint requirement is applied in two applications using different paints. The additional paint and the extra time required to apply the second coat...
  14. hybrid Transmission clutch?

    YF (2011-2014) Sonata/i45
    Yes, it has a clutch. All you want to know, right here:
  15. new battery for 15 sport 2.4

    LF (2015+) Sonata/i45
    I had two instances this week of starting my 2015 (with 2.4 engine) in temperatures of -17 degrees Fahrenheit and the vehicle started up instantly both times. I had the block heater plugged in and assumed this assisted the ready start. Later in the week I had occasion to check the Wattage draw...
  16. 2018 Sport 2.4L Cabin Drone

    LF (2015+) Sonata/i45
    I would not want any more cabin noise than occurs OEM equipped, can't even imagine tolerating an exhaust drone. Even with snow tires I pick quiet sets: but I have a 2015 for sale that has new Nokian snow tires and they irritate me on long drives.
  17. Engine Seized

    YF (2011-2014) Sonata/i45
    For $6K (or less) you could buy another car of the same year and value, but I understand that this is not your option and you like the vehicle. All costs regarding engine replacement should have been covered by Hyundai: the motor failure should have been covered by recall. As Mr. P stated...
  18. Bad Trunk / Fuel Door Switch?

    YF (2011-2014) Sonata/i45
    Fuse
  19. Bad Trunk / Fuel Door Switch?

    YF (2011-2014) Sonata/i45
    Don't have schematic for '12 but here's '11 and '13
  20. 2015 Sonata Limited Excessive Oil Consumption?

    LF (2015+) Sonata/i45
    I did a survey a couple of years ago and obtained from Mobil documentation that Mobil 1 Advanced Performance 5W-30 had 20-30% PAO synthetic stock and Mobil Advanced Performance 0W-20 had even more PAO. Here in western Canada we can buy Co-op Sonic Gold SL 0W-30 oil which is a pure PAO product...
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