Lexus RX 2010-15 :: F Sport Slow Throttle Response From Standstill
Aug 16, 2013
The throttle response from a standstill seems VERY slow. When I push down the accelerator, it seems to go down a good 3-4 inches before I meet any significant resistance, and even then, I can do a good 2 second count before the engine seems to engage. If I am stopped at a light, and I slightly blip the accelerator, then push the pedal down, it does better. But if I am stopped and floor the gas pedal, nothing happens....at ALL...for at least 2 seconds. It is slightly better when in manual, but the issue is enough for even my wife to comment that it takes off very slowly when you first give it gas.
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I know that sport mode raises the rpm at which shifts occur, but it feels like this mode also makes the throttle response more sensitive. Though, this could be because Sport keeps the needle in the primo range of the power band.
And at the risk of turning this thread into another topic: Does race, either over revving at a light, or just being passes aggressively and stuff like that? This is somewhat geographically dependent. I am originally from PA and live here now and people try and race me all the time, or drive more agressively around me than I feel they otherwise would were in a less sick car.
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From time to time, the first time the car is started in a day, the transmission (4T60E, 1993) may take several ............ seconds before first engagement, either in forward or reverse. Fluid level OK, color OK, filter changed 2/3 years ago. This began just a few months ago. After that, everything will work flawlessly for all the day , no problem at all, all shifts OK, all subsequent starts OK.
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My wife got a 2014 Tiguan (R-Line) yesterday. Nice car but throttle response is slow.
Wondered to know about APR Stage 1 tune on a Tiguan.
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I own a 2004 Passat- 1.8. I want to make my steering and throttle more responsive. The throttle is very slow responding, and the steering is very sloppy. I know this is supposed to be VW's Luxury car, but this would greatly enhance the performance and driveability of this car. How do I do this?
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I finally finished installing my VF stage 2 supercharger. I fired it up and the idle is low (around 500 rpms) and a very rough idle. Throttle response is very slow, when it finally revs the car stalls. I can also hear a leak somewhere near the throttle body. I have an SAI block off plate. 630cc injectors and UM tune. No CEL
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I am a dedicated Ford truck owner. Both vehicles I have had are both F150's. My first one was a 5.4L v8 03 and my current is a 5.4L v8 06 4x4, seen below.
When I bought the truck it was straight piped. I went ahead and did a GOTTS mod on it. The truck also has the factory tow package. I replaced the spark plugs and engine oil (Amsoil High Mileage). I did a couple basic things like putting in the light bar and replacing the headlight housings. Other than that it it pretty much the same as when I bought it. I cleaned the throttle body and sensors, using the proper cleaners. I ran two cans of SeaFoam through as well.
With my last truck, I 'flushed' the transmission (not a actual flush, but I changed the tranny oil about 7 times in a short period of time). A buddy suggested I do it, as it was a DOT truck and maybe wasn't treated the best. It was a automatic, just like my 06. Would that do any actual good?
I have noticed that truck has a spongy/delayed throttle response. The engine idles normally and there are no codes being thrown. I had a similar issue with my 03 but it had a cable to the pedal and I just had to tighten that up and it was better. Perhaps because of the straight pipe and GOTTS and no tune?
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I've been having rather slow throttle response with my 6.0 f250 diesel at lower RPMs. Obviously, this is to be expected to some point.. Whether I'm cruising on the highway or through the neighborhood, if the truck is at lower RPMs and I try to accelerate, it doesn't want to. In order to get it to accelerate, I have to press the gas down enough to downshift it then it'll take off.
The truck doesn't have a loss of power at higher RPMs, it takes off like a bat out of hell. I've put 175CC injectors in, tuned it, power max turbo, EGR deleted / studded, etc. It's almost go out with acceleration, or go turtle power with acceleration.
Oil pump was replaced a couple years ago. This problem existed through it all, and it's rather annoying. The truck doesn't want to produce any low end power. If I try to hit the gas enough to accelerate but not enough to force a downshift, I'll just blow smoke, spool the turbo, and barely accelerate until I down shift or push the truck through it. Turbo PSI is roughly ~15ish-20ish during the sluggish transition.
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7.3 2001 model starts ok at 32-35 F. Feels a bit sluggish / slow response on the road. Reach a hill after 3-4 miles. Engine temp then beginning to go above low level mark. 100 meters up the hill, going around 30 mph there is a sudden surge in the throttle although my pedal is steady. Going back a few minutes later, on flat ground at bottom of hill and with no accelerator pressure, the engine suddenly stalls. Starts fine again after I stop. The same history actually repeated on two separate days recdently on the same hill. CPS is recently replaced. Had some jerking before that, but not the behavior explained above. Current CPS is Delphi light grey. Recent fuel filter change and oil change as well
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I have a 4motion Automatic Tiguan 2011. It always had a tiny acceleration lag which I believe is quite normal. But lately, our Tiguan developed a that-doesn't-sound-right symptom. I feel the acceleration gap is much longer now, the engine makes quite a bit of noise but the car hesitates to go, and it gets a bit worse on uphills. It had a transfer box leak that was fixed 3-4 months ago.
It sounds like a transmission problem to me. Is there something wrong with the power train?
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My V6 3.0 TDI 2007 car is basically just driving fine, however occasionally i did noticed (when cold) a rare hiccup in accelerator response from standstill. Today i made a scan on VCDS, and found this engine fault, what could it be? The car is officially and recently maintained by VW dealer.
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I'm getting pretty significant throttle response delay in my 2013 Elantra w/ Tech. It's pretty egregious in stop-and-go traffic when I attempt to accelerate, wait a second before my car responds, and then get jerked forward, only to stop a second later.
I emailed Hyundai and was told to speak to the dealership. I called up the dealership and they had no idea what I was talking about. I emailed another local dealership, and they didn't get back to me. Pretty annoyed at this point.
I did a search on this forum and found some threads discussing resetting the throttle system by resetting the ECM. Wasn't too confident in doing that myself and I didn't want to mess up my car's computer system at all. I'd like the dealership to take care of this under warranty, but if they haven't heard anything about this, then I'm not sure how to proceed. What my next move should be?
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Uneven throttle response during cold weather engine warm-up? When sub freezing weather arrived a few weeks ago my 2010 Prius developed uneven acceleration during engine warm-up. The car was purchased in October and it ha less than 3,000 miles.
Gradual depression of the accelerator results in a very small, tiny in fact, amount of increasing power to the wheels, not in proportion to the usual smooth and responsive amount of cold starts above freezing temperatures.
Continued depression leads to a point about halfway to the floor when the engine, which of course has been running all along, suddenly surges and the car takes off with a jolt of power. Not smooth, impossible to control well and unacceptable. Many would say this is unsafe.
My 2005 Prius never had, and my wife's 2007 does not have this issue. Could be a cold weather related accelerator defect as with the Camrys, but this is not mechanical sticking as was the case with the Camrys, its an electronics error like a faulty sensor or cold start injector.
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I seem to be having a clunk noise coming from my car when braking to a standstill or accelerating from a standstill.
Its totally unpredictable but only happens when braking or accelerating under 10mph.
No noise when going over bumps or turning and its only heard when the windows are down. What it could be?
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Eco/Normal/Sport S/S+ Mode... the literature doesnt say much except it changes throttle response and power output. For the Sport modes it says that "The rear-wheel drive IS 350 F SPORT's Sport S+ mode also tightens the suspension..." Are the shocks somehow adjustable, or is this just marketing BS?
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My Sonata has developed a hesitation when accelerating from a standstill. Sometimes the symptom is worse. I haven't identified any correlation of this symptom with any other scenarios.
Symptom : When at a stand-still, lightly pressing on the gas pedal doesn't result in corresponding slow acceleration, it is only after a certain threshold (of throttle application) has passed that power from the engine is transmitted to the wheels. When this occurs, the result is a jerky start.
In other words, trying to feather the gas pedal to allow a gradual and smooth acceleration from stand-still is not possible when this issue occurs.
I believe the 09' Sonata has a drive by wire throttle correct? If so, could this be a computer calibration issue?
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I noticed a ECO light pop up on the RX350 F Sport when driving.
What exactly does this mean? (ie. poor performance, not full pwer?)
Is there anyway to turn this off?
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anyway to set it up so it always starts in S or S+ mode so I don't have to always remember to do it.
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It's just the throttle response? Is steering or brakes enhanced or is it just me? I know the Is250 didn't get the suspension option like the IS350.
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Does dynamic radar cruise control come standard on 2013-2015 RX350 F Sports. What options are standard on the F Sport.
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Just picked up a new 2014 rx fsport and 75% of the time I release the e-brake it has a loud clunk as if metal smashing metal. I tried releasing it really slow and it still does the same. The vehicle is parked on flat pavement. It is not a low click noise that I am used to but a loud clunk.
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