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Old 09-07-2018, 07:30 AM   #15
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So how can the engine that has been around since 2013 have issues like this in a 2018 car? The 2018 are not a "first year model" and are using the same powerplant we have been all using since 2013. Shouldn't all the bugs have been worked out by now?

They are worked out, it was a production line issue with over torquing or under torquing. The engine is not the same from 2013 btw. There are some differences in internals, coil packs etc from 2013, 2015 and 2017-2018 all to make the engine more efficient, even the "red manifold" which flows better is a design cost. From an engine production standpoint those are massive differences.
@Tcoat happen to have the brochure link of all the changes for just the 2017+ or 2018 year?
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Old 09-07-2018, 07:40 AM   #16
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They are worked out, it was a production line issue with over torquing or under torquing. The engine is not the same from 2013 btw. There are some differences in internals, coil packs etc from 2013, 2015 and 2017-2018 all to make the engine more efficient, even the "red manifold" which flows better is a design cost. From an engine production standpoint those are massive differences.
@Tcoat happen to have the brochure link of all the changes for just the 2017+ or 2018 year?
There are many changes even in the ATs that didn't get the new manifold.
People seem to think that new cars are all perfect but that is not reality. Manufacturing and assembly issues happen every single day. If they get caught in time they get fixed before they hit the dealers but sometimes some slip through. No matter how much automation is involved cars and their parts are still made by people and people screw up. As long as the manufacturer acknowledges the problems and take action to correct them we really can't complain.
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Old 09-07-2018, 08:19 AM   #17
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Proof that the post-facelift cars are unreliable, bloated messes compared with the early models.
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Old 09-07-2018, 02:50 PM   #18
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There are many changes even in the ATs that didn't get the new manifold.
People seem to think that new cars are all perfect but that is not reality. Manufacturing and assembly issues happen every single day. If they get caught in time they get fixed before they hit the dealers but sometimes some slip through. No matter how much automation is involved cars and their parts are still made by people and people screw up. As long as the manufacturer acknowledges the problems and take action to correct them we really can't complain.

Yep I was aware there were tons of changes @tobin @BRZnut there's your explanation of the changes, it's still reliable and just a few 2018s they rest are still reliably chugging along. Hard to make large assumptions like that....
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Old 09-08-2018, 10:49 AM   #19
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So how can the engine that has been around since 2013 have issues like this in a 2018 car? The 2018 are not a "first year model" and are using the same powerplant we have been all using since 2013. Shouldn't all the bugs have been worked out by now?
This was my thought exactly. The manager I spoke to said that this car is new. I corrected him and told him that yes, my car is new, but this car has been around for 6 years now. He didn't have a reply for that and my beef isn't with him at all. I'm just here hoping Toyota/Subaru does right by all their loyal consumers. That's all.
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Old 09-08-2018, 10:52 AM   #20
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They are worked out, it was a production line issue with over torquing or under torquing. The engine is not the same from 2013 btw. There are some differences in internals, coil packs etc from 2013, 2015 and 2017-2018 all to make the engine more efficient, even the "red manifold" which flows better is a design cost. From an engine production standpoint those are massive differences.
@Tcoat happen to have the brochure link of all the changes for just the 2017+ or 2018 year?
So the problem is occurring because of the redesign? I'm not even really sure what the problem is. I just read somewhere in these forums about valves and the service manager said the same to me, which is the word they received from Toyota. I have no choice, really, but to go along for this ride. I just hope it's not a bumpy one and that I get my car back in the perfect working order. It sucks to think I paid and only a few months later, I get a refurbished.
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Old 09-08-2018, 10:55 AM   #21
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Proof that the post-facelift cars are unreliable, bloated messes compared with the early models.
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Originally Posted by FRSBRZGT86FAN View Post
Yep I was aware there were tons of changes @tobin @BRZnut there's your explanation of the changes, it's still reliable and just a few 2018s they rest are still reliably chugging along. Hard to make large assumptions like that....
This was my thought, too. Someone also brought this up in the other thread that this may be just a bad batch. I believe someone wanted to compile build dates with VINs to see what we come up with. I get this feeling my car (or our cars with these problems) were "built/assembled on a Friday afternoon". Lol.
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Old 09-08-2018, 03:54 PM   #22
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So the problem is occurring because of the redesign? I'm not even really sure what the problem is. I just read somewhere in these forums about valves and the service manager said the same to me, which is the word they received from Toyota. I have no choice, really, but to go along for this ride. I just hope it's not a bumpy one and that I get my car back in the perfect working order. It sucks to think I paid and only a few months later, I get a refurbished.
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This was my thought, too. Someone also brought this up in the other thread that this may be just a bad batch. I believe someone wanted to compile build dates with VINs to see what we come up with. I get this feeling my car (or our cars with these problems) were "built/assembled on a Friday afternoon". Lol.
Not because of any redesign, I was simply saying this motor is not the same from 2013 and 2014, so many changes people don't even notice, for instance my 2015 have completely different coil packs and wiring harness for them than 2013-2014.

This issue effecting your car was a production line issue, either someone had the wrong setting on one of there machines to torque down the valves or something similiar to that.
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Old 09-08-2018, 06:10 PM   #23
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So when the valves heat up and expand the clearance is closing up? Or are they sticking in the guides? Valves don't get torqued down.
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Old 09-08-2018, 07:01 PM   #24
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So when the valves heat up and expand the clearance is closing up? Or are they sticking in the guides? Valves don't get torqued down.
No, the official explanation from service dealers was "Valves too tight"

https://www.ft86club.com/forums/showthread.php?t=125672

It's 100% a factory adjustment issue
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Old 09-08-2018, 08:34 PM   #25
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That can mean either stem to guide clearance or valve to rocker clearance
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Old 09-08-2018, 08:39 PM   #26
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Per thread link it was valve adjustment. Does fa20 use shims?
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Old 09-08-2018, 08:44 PM   #27
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Okay. Smaller shims are needed. Pain in the ass but not the end of the world.
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Old 09-09-2018, 12:09 AM   #28
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So when the valves heat up and expand the clearance is closing up? Or are they sticking in the guides? Valves don't get torqued down.
The service manager said "stuck". I didn't want to go into details as the call was out of nowhere and I was at work. I'll get the full story when my car is ready. If you guys have any questions, I'll gladly ask on your behalf if it's of relevance.
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