2nd gear hesitation/jolt/RPM loss, even after Fuel Pump noise TSB
09-19-16, 12:09 AM
#31
Pole Position
09-19-16, 12:13 AM
#32
Lead Lap
09-19-16, 12:46 AM
#33
Pole Position
The main reason I buy ALMOST 100% Lexus vehicles over the last 20+ years or so is its legendary reliability and royal treatment at the Lexus Dealerships.
But sometimes one Lexus dealer may not want to honor the tradition. My advise is to go to another Lexus dealer if you have a choice. If not, then I would say write a complaint letter to Lexus HQ and get resolution and satisfaction.
But sometimes one Lexus dealer may not want to honor the tradition. My advise is to go to another Lexus dealer if you have a choice. If not, then I would say write a complaint letter to Lexus HQ and get resolution and satisfaction.
09-19-16, 07:42 AM
#34
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honestly I just re-read what they put and they stated the lag is shifting at low rpms is normal. which is correct. i don''t think they actually understood what I explained to look for. its after shifting from 1st into 2nd and while in 2nd there is a hickup around 1900-2400 rpm as if the clutch is ever so slightly released.
09-20-16, 02:53 PM
#35
after the ECU flash and bringing up the hesitation in 2nd gear they stated that it was normal when I picked it up. But after reading the notes they said they said the shift from 1-2 in low rpm being slow was normal so I do t think they understood initially what i mentioned. Today I took the car back and the service manager took a ride along with me and he definitely noticed the issue. He was going to log in some tests and scans and get with Lexus CA to see what the engineers suggest. I also mentioned to him that many others are noticing the hesitation in 2nd gear but then many others have no issues at all. Let's see what happens
09-20-16, 03:50 PM
#36
after the ECU flash and bringing up the hesitation in 2nd gear they stated that it was normal when I picked it up. But after reading the notes they said they said the shift from 1-2 in low rpm being slow was normal so I do t think they understood initially what i mentioned. Today I took the car back and the service manager took a ride along with me and he definitely noticed the issue. He was going to log in some tests and scans and get with Lexus CA to see what the engineers suggest. I also mentioned to him that many others are noticing the hesitation in 2nd gear but then many others have no issues at all. Let's see what happens
Please keep us posted! Thanks!
09-20-16, 07:30 PM
#37
Lead Lap
This issue has apparently been around for a while:
https://www.clublexus.com/forums/rc-...esitation.html
I've been browsing through old threads because I'm sitting at work bored.
https://www.clublexus.com/forums/rc-...esitation.html
I've been browsing through old threads because I'm sitting at work bored.
09-20-16, 08:00 PM
#38
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after the ECU flash and bringing up the hesitation in 2nd gear they stated that it was normal when I picked it up. But after reading the notes they said they said the shift from 1-2 in low rpm being slow was normal so I do t think they understood initially what i mentioned. Today I took the car back and the service manager took a ride along with me and he definitely noticed the issue. He was going to log in some tests and scans and get with Lexus CA to see what the engineers suggest. I also mentioned to him that many others are noticing the hesitation in 2nd gear but then many others have no issues at all. Let's see what happens
09-20-16, 09:01 PM
#39
Awesome job man! I have been in contact with my Dealership's Service Manager about this issue as well. The more dealerships that begin seeing or hearing about this issue means a better shot getting the correct engineers looking at it. This is exactly how the fuel pump TSB came about. I am definitely curious to find out if this is as simple as a low trans fluid issue, though. So, that should be the first thing to look at. Keep us posted.
09-22-16, 02:06 PM
#40
EVERY ONE QUIT WORRYING! ITS FINE!!!
The Manual mode allows the SPDS to allow full torque-converter lock-up from second to eighth gears for “clutchless” manual shifting. The service manager had no idea and acknowledged the feeling but after he ran diagnostics and scan to see what was happening it showed him that the tq conv. was locking up. He called Lexus CA just to confirm this and his presumtion was correct. Also if you allow the car to decelerate after the full lock up in 2nd to 1500rpm less you can feel the tq converter disengage very slightly.
Also after they told me this i did some searching about the torque converter lock up and saw this post: LOOK at #7
http://autonationdrive.com/top-10-th...15-lexus-rc-f/
The Manual mode allows the SPDS to allow full torque-converter lock-up from second to eighth gears for “clutchless” manual shifting. The service manager had no idea and acknowledged the feeling but after he ran diagnostics and scan to see what was happening it showed him that the tq conv. was locking up. He called Lexus CA just to confirm this and his presumtion was correct. Also if you allow the car to decelerate after the full lock up in 2nd to 1500rpm less you can feel the tq converter disengage very slightly.
Also after they told me this i did some searching about the torque converter lock up and saw this post: LOOK at #7
http://autonationdrive.com/top-10-th...15-lexus-rc-f/
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Juniorrsx (09-23-17)
09-22-16, 07:36 PM
#42
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EVERY ONE QUIT WORRYING! ITS FINE!!!
The Manual mode allows the SPDS to allow full torque-converter lock-up from second to eighth gears for “clutchless” manual shifting. The service manager had no idea and acknowledged the feeling but after he ran diagnostics and scan to see what was happening it showed him that the tq conv. was locking up. He called Lexus CA just to confirm this and his presumtion was correct. Also if you allow the car to decelerate after the full lock up in 2nd to 1500rpm less you can feel the tq converter disengage very slightly.
Also after they told me this i did some searching about the torque converter lock up and saw this post: LOOK at #7
http://autonationdrive.com/top-10-th...15-lexus-rc-f/
The Manual mode allows the SPDS to allow full torque-converter lock-up from second to eighth gears for “clutchless” manual shifting. The service manager had no idea and acknowledged the feeling but after he ran diagnostics and scan to see what was happening it showed him that the tq conv. was locking up. He called Lexus CA just to confirm this and his presumtion was correct. Also if you allow the car to decelerate after the full lock up in 2nd to 1500rpm less you can feel the tq converter disengage very slightly.
Also after they told me this i did some searching about the torque converter lock up and saw this post: LOOK at #7
http://autonationdrive.com/top-10-th...15-lexus-rc-f/
09-22-16, 09:13 PM
#43
Lock up happens in 2nd gear around that 1500-2000rpm range in manual. This is the reason why the shifts are quick from 2-3, 3-4, 5-6 and on especially if you put it under load with a heavy foot.
Also if you shift out of 1st at a higher rpm there will not be a hickup because the converter will be locked. Try letting your Rpm go up to 4000 before shifting into 2 and there is no hickup.
Also if you shift out of 1st at a higher rpm there will not be a hickup because the converter will be locked. Try letting your Rpm go up to 4000 before shifting into 2 and there is no hickup.
09-22-16, 09:24 PM
#44
Pole Position
True to that!!!
There is NO HESITATION when under load or heavy footing on the gas. It is suppose to be a "sports car", right? I mean drive it like what it is intended for.
There is NO HESITATION when under load or heavy footing on the gas. It is suppose to be a "sports car", right? I mean drive it like what it is intended for.
Lock up happens in 2nd gear around that 1500-2000rpm range in manual. This is the reason why the shifts are quick from 2-3, 3-4, 5-6 and on especially if you put it under load with a heavy foot.
Also if you shift out of 1st at a higher rpm there will not be a hickup because the converter will be locked. Try letting your Rpm go up to 4000 before shifting into 2 and there is no hickup.
Also if you shift out of 1st at a higher rpm there will not be a hickup because the converter will be locked. Try letting your Rpm go up to 4000 before shifting into 2 and there is no hickup.
09-23-16, 04:55 AM
#45
even though I agree, I can't drive like that in morning traffic it just isnt possible and that's when I noticed it. So long as I know that it's normal I'm perfectly fine with it. I'm I guess those that never noticed it drive in auto majority of the time.