Howdy folks,
New owner of a 2009 Elantra touring (2.0 L petrol auto) that we bought recently. I've researched and researched the auto issues and didn't notice delayed shifting between D and N, harsh shifting or significant slipping while we were test driving it. Now that we own it (as these things tend to go), I'm noticing a couple things.
There's very little delay between shifting in and out of drive and reverse (good)
1-2 shift is quick and short (good), 2-3 shift seems to almost take place over two motions, where revs drop a fair bit, then stop, then drop a bit more (bad..?), then 3-4 does the same 2 motion gear shift change. There's no harshness, no untoward sounds, and if I wasn't watching it I don't know if I'd even notice, but it's distinct and repeatable.
I did the torque converter stall test and it passed (brakes on, in drive and floor it, stops revving at 2100 rpm)
On the highway, if I let off the gas going around 100 kph, then give it gas gently again, it'll rev up from the 800 rpm idle it settles at with no throttle but at speed, rev a bit up,then settle down at a slightly lower rpm. Almost like it "slips", but it doesn't do it taking off with lots of throttle from a stop, and the torque converter lockup value on my OBD reader fluctuates in sync with the "overrev", almost like it's doing what it's told.
And last but not least, I get the "low idle rumble" at a stop in drive. If I put it in neutral, it lessens, in park it goes away completely.
On one hand if it comes to that, I'll replace the valve body. On the other hand, are these normal behaviours for this transmission? I've been driving either manuals, or truck autos (which drive altogether differently I did even think to compare them) so I don't know what to compare against.
So, am I rightfully expecting failure, or do these transmissions just do some unexpected things to save fuel that's throwing me for a loop?
Also, no codes!
