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Sedans Hyundai Azera Hyundai Azera Transmission
89 messages, Last post on May 03, 2008 at 5:57 AM
You are in the Hyundai Azera Forum. Your Hosts are pat & karens
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Replying to: deeperblue (Aug 16, 2006 9:01 am) |
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Replying to: deeperblue (Aug 16, 2006 9:01 am) I'm not saying you don't have a problem, but I'm not convinced you do, either. A half second may be in the realm of normal operation. It takes some time, regardless how brief, for the pump to pressurize the appropriate clutches once the valve body solonoids activate for a shift or mode change. At engine idle speed, that delay might be perceptably longer. There's also the matter of tranny clutch materials running-in to their full adhesion properties. (Their milled surfaces are somewhat soft, initially, and slip a bit in the takeup transitions. I had a hard time distinguishing my '03 Sonata's shifts at all for the first couple of weeks. After a thousand miles, they became consistently noticeable - but still creamy smooth, even to this day. Hyundai definitely got shift quality right on mine.) Finally, your "fuzzy logic" TCM mapping is slowly learning your driving characteristics. Definitely have your dealer check it out, though. Maybe drive a well run-in demo for comparison while you're there, too. |
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Replying to: ray_h1 (Aug 16, 2006 12:15 pm) |
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Replying to: deeperblue (Aug 16, 2006 12:32 pm) |
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Replying to: deeperblue (Aug 16, 2006 12:32 pm) You might want to run a search of this forum, too. There were a lot of earlier posts about how the "learning" aspect of the tranny might be mis-taught by a succession of test drivers before you ever took delivery of the car. The dealer can reset this so it can learn your habits from scratch, though knowledgeable posts indicate it's not as simple a task as disconnecting the battery as some have thought.
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Replying to: tonycd (Aug 17, 2006 8:25 pm) Briefly disconnecting the battery's negative terminal used to wipe the TCM's volatile memory and less than a minute was sufficient. However, Hyundai responded to owner complaints that whenever the battery was disconnected for replacement or other electrical repair procedures, sometimes at advanced accumulated mileage*, their transmissions shifted like poop afterward. Hyundai's response in mid-2004 was to use non-volatile memory in the TCM to store shift point/quality mapping. To erase the accumulated mapping now requires active intervention with the handy-dandy HighScan code-reader/reprogramming tool. *Adaptive learning also elliminates the need for periodic trips back to the dealership for transmission band adjustments. The good news is that "takeup" over the service life of the transmission is essentially continuous. The not-so-good news for owners of pre-2004 Hyundai automatics is that, should the battery be disconnected at some advanced accumulated mileage, "getting back" to previously established shift patterns with currently established clutch facing wear, is likely to be a somewhat drawn-out process... |
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Replying to: bigo08 (Apr 16, 2006 9:37 pm) I realize this reply might not make you happy but it simply states the facts. 
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my 2006 Azera with 4900 miles started up and the check eng light came on as well as the ESC. pushing the ESC did not turn it off. as i drove, there was almost no acceleration. pulled over and had Hyundai road service tow it to the dealer. any idea what this is? dealer can't look at it until tomorrow. They did provide a loaner (brand new sonata V6 but its not my Azera!?!)
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Replying to: windycity7 (Aug 28, 2006 9:21 am)
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