Lexus IS 2014+ :: Transmission Is Slipping When Changing From 3-4-5 Under Light Throttle
May 30, 2015
While driving around with the 8 speed is350, It seems like the transmission is slipping when changing from 3-4-5 under light throttle. The revs shoot up and then it finds the next gear kind of like someone riding the clutch in a manual car.
This used to happen a little during the winter on cold start but its happening more often even in warm weather. Maybe I'm just crazy but I'm sure its not supposed to be acting this way.
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4400 miles on it. Over last few days the transmission started to slip. First gear engages fine, but the change to 2nd involves a rev....(with no acceleration) till it finally grabs.
Reverse into my garage up my slight incline of a drive does same. Slip rev....slip rev... No gear noises.
Tried to check fluid level...(that's what it sounded like to me) but sealed system.
Taking it in for warranty check/work.
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I have a new 2011 F150 4x4 6.2 liter with about 1200 miles, 6R80 6 speed Transmission. I haven't liked the shift quality since buying a little over a month ago. I think the upshift from first to second is kind of rough and it feels like it's slipping a little from second to third gear. I've read a lot of negative posts/reviews on the 6R80 transmission, and some people have said it got better over time, or it got better with more aggressive driving. I do notice it shifts better if I drive it a little harder. The build date according to the sticker is 4/11 and I don't think there are any TSB's for PCM updates for this year/engine/model. I'm wondering if I should bring the truck in now for the dealer to take a look or drive it for awhile longer to see if it gets better?
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I read my manual that claims to never change ATF in our transmission as its suppose to be good till 100k... well I have some bad news for everyone. I have a friend who works for Lexus dealership who said he serviced a couple of IS350 and found out that the ATF in those trannys is pitch black and low on levels by 60k.
Starting to dig deeper into this issue I found a thread by a member who had his tranny replaced because original failed possibly due to spoiled and burned out ATF.
So, needless to say I will be changing my automatic Tranny Fluid coming up on 45k and had a question: Does our car have flush lines to do the ATF flush and what is the proper way to do it because I know simply draining it will only get about half out.
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I have a 2011 F-150 with the v-6 automatic. The truck has just under 45,000 miles on it. Couple of times I have started it up in the morning to head to work, and when I put it in gear(fwd or reverse) it seems to slip at first. It does it just the one time, then it will be fine. It only happens in the morning after sitting for the night and when it is cooler(Arizona here so hasn't gotten much cooler than the 50's at night so far). I need to take the truck in for another issue, but thought I would ask on here first.
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Noticed this in the last couple of weeks. On light throttle acceleration the 1-2 shift seems perfectly normal, but 2-3 occurs rather sooner than previously, and 3-4 seems to go through neutral (tach climbs maybe 250-500 rpm for maybe a second or so) rather than a solid shift. Getting on the freeway (WOT), seems normal, and other than light throttle if there's a problem with shift points, I don't notice it.
Maybe an issue with relearn/reprogram? Car is low mileage, adult driven, 16,721 miles of easy highway and local driving.
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My new to me 2010 f150 4x4 superCrew Lariat is great. Got the 6spd tranny. Do a lot of maint. Myself and wanting to change tranny fluid since I hit 90k. Didn't see a dipstick. Called the stealership and they told me I can't do the change n/c I need certain equipment.
Are there any write ups? Are there any more surprises with this truck, like routine maint issues that I need to be aware of? I plan on doing diff fluid changes. Is this possible?
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I purchased my 2012 EB used with 35k miles on it. at about 42k I had the condensation issue happen when passing several RV's in a mountain pass. I took the truck to the dealer I purchased it from and they did the TSB13-8-1 Fix to it. I noticed right away that I had lost some power (I was very saddened).
I also have Noticed that I lost about 2.5-3 MPG. Since the work was done I still have a shudder that feels a lot like the transmission is slipping when I mash the go peddle. this does not happen every time but I would say it does happen better then 50% of the time at highway speeds trying to pass slower rigs or getting up to speed to enter the highway.
My question is has ford updated the TSB's for the 2012 EB F150's lately? I love this Truck, it is the only vehicle (besides my motorcycle) I have owned to date that I was not tired of after about 6 month's. I hope when I take the truck back to the shop next week that there is a fix that works that I get my MPG's and power back and that lets me drive it the way it should be driven.
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I purchased a 2007 ES350 from a Toyota Dealership (64K, now has 66K). I purchased a warranty for the vehicle. Over the last couple weeks I have begun to notice my transmission is slipping - the car will rev up with no acceleration. It will usually catch on the second attempt of pressing the gas pedal. I notice this behavior usually after a cold start in the morning as I am leaving for work.
Before I go into the dealership to tell them about my potentially expensive problem, I want to ensure I go in knowing as much as possible. I have already found a ton of issues surrounding various transmission flairs at varying gears. (TSIB: TC001-06)
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My son changed the oil in our 97 Lexus. (It has about 185K miles) The transmission started slipping same day.
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I have a 2011 f150. I go to put it in reverse no problem after I'm done backing up and put it in drive. The truck does not go anywhere but it will race up to about 4000 rpm without even having my foot on the throttle. Put in park then back into drive same thing happens. Put it back into park turn the truck off start it again and no problems. It drives just fine. I've had it to the dealer they say it is not throwing any codes so there is nothing they can do about it.
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Looking for instruction on how to change the headlight bulb?
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I'm starting to notice some squeaking sounds while changing the airflow for the AC. Pretty much all of the options will make a sound, but especially changing from Head+feet to head only, and vice versa.
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Just picked up my 2015 IS 350 F Sport two days ago. Really got to take it out for the first extended drive today. The drivers side temperature controls seem to be increasing and decreasing on their own.
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I have a 2008 RX350 AWD with only 500 miles on it so far and I am starting to get concerned about what seems to be excessive slipping or a delay in response in the trans. Under normal forward driving the trans seems to shift very smooth. The problem occurs under situations where I am coming to a near stop, basically coasting, and then have to accelerate again to continue forward. This could be in a slow moving traffic type situation or when maneuvering through a parking lot. When I try to execute a small increase in speed the engine revs but the trans doesn't respond.
It's as though it's in neutral and unable to decide which gear it should be in. After a 2 to as long as a 5 second delay it finally engages and moves forward. The condition is even worse if I am heading into a slight incline. Once it is engaged everything is fine and the subsequent shifts are very smooth. When starting from a complete stop it works perfectly. I've never had a transmission slip this much in any vehicle. There was one situation where I was almost broadsided because the RX delayed in moving forward.
I realize this is a subjective call but I am trying to determine what level of slipping in the trans is considered normal under the conditions I've described. I have searched and read past threads about issues with the earlier model years but I thought they were resolved by now. I haven't taken the RX in for service yet but I fear I will get the standard - everything is working as designed - answer from my dealership.
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What is the proper procedure in changing the brake pads without unbolting the caliper?
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How to change default audio settings when starting the car?
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I have a 2006 GMC Yukon XL and its transmission started slipping at just under 60K miles. My local repair shop (who I trust) suggested a transmission shop that they work with a lot. Since I tow a trailer with the vehicle it seems reasonable enough to go with their suggestion to rebuild the transmission using upgraded “heavy duty” components and install a transmission cooler, which I had them do. If you are interested in seeing what they installed, I have uploaded the repair tag at [URL] ....
Right after we got the car back we took the trailer on a trip and very soon the “Transmission Hot” warning light came on. I happened to be driving very close to the transmission shop at that time so I stopped by and they replaced the transmission fluid with synthetic fluid and said that would remedy the situation. However, very shortly after leaving the shop the warning light came on again. At the time I asked the owner of the shop if the heavy duty transmission might just run hotter than the original and he told me that it should not. Well, I brought it back in and he disassembled and reassembled the transmission and even moved the placement of the transmission cooler but, long story short, the transmission hot light still comes on.
Then he changed his tune told me that the heavy duty transmission should run hotter, contrary to what he told me originally. He went on to tell me that there was no way to adjust the temperature sensor that controls the warming light so he convinced me to install a supplemental temperature gauge for the transmission. He said that the sensor was set at the factory to trigger at 180 degrees and that the transmission was likely just running a few degrees over that. So, we made a deal that he would install the gauge and if the transmission temperature stayed below 190, which he said was a safe number, then I would pay for the gauge, but if the transmission ran over 190 degrees, he would cover the cost because that would indicate that there was probably something wrong with the transmission.
He did the work but now he has once again changed his tune and is telling me that it is no problem for the transmission temperature to run as high as 250, which is 60 degrees higher than what he told me originally. So, the question is,
1) should a heavy duty transmission with a cooler run at a higher temperature than standard transmission and
2) how hot is too hot for it to run?
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Any way, they come to me and tell me the tranny is slipping. I immediately notice the SES light on. I decided to check codes to see if I have any errors coming from the tranny. So far I have these codes: P0455 P1151 P0304 P0174
I dont know this vehicle at all and wanted to see if some of these items are common and/or possibly related to each other.
Heres what I have found:
P0455 - EVAP leak somewhere. Seems a lot of people have discovered a crack in the filler neck.
P1151 - Passenger O2 LEAN
P0304 - Cyl 4 misfire
P0174 - Passenger lean condition "A Heated Exhaust Oxygen (HO2S) sensor indicating lean at the end of a test is trying to correct for an over-rich condition. The test fails when the fuel control system no longer detects switching for a calibrated amount of time."
Looks like I need to clean the MAF, check vacuum leaks, possibly replace passenger O2. Ive also read some of these codes come from a common issue with the intake gasket. May need to replace it? How should I clean the MAF? Can I use some normal solvents?
I need to mention a tick/tap on pass side under cold idle (consistent, but not constant). Still need to test to see if it happens at other times. Right now has Seafoam in the oil and about to run it and then change the oil. Also, have ran it though the brake booster. Currently in the sit and wait process, about to go out and make the neighborhood smoke like Hiroshima.
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If changing the rims on my '14 IS will affect the TPMS function? If so, am I able to transfer this on to my new set of rims? Also, is there a TPMS reset switch in the car?
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I have an early model year 2004 Touareg which has lately developed what appears to be a slipping problem when changing gears from 5th to 4th when decelerating or the same when accelerating strongly and downshifting. When switching over to tiptronic mode, its not clear if that apparent slipping goes away or changes. It definitely isn't as severe but that could be due to perception or the RPMs where the shifting is occurring.
The only real interesting characteristic of this clunk and lurch that is experienced is that it only happens when the car is warm -- I've been watching the transmission oil temperature, and it appears to start happening as it passes through 200 degrees. When it starts, the lurch/clunk is small and not too bad. As the car reaches temperature, it reaches if full lurch/clunk potential.
I have taken it to the dealer once and they have "upgraded software" that was supposed to clear up the problem, but did not.
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