IS F (2008-2014) :: Sluggish Downshift When Car In Auto Mode
Just left my lexus dealer after getting an oil change. When I go WOT with the car in auto mode (whether or not in sport mode), it is very sluggish to downshift and when it finally does downshift, will accelerate very slowly above 4,000 rpm...almost no power.
In manual mode, no issue, accelerates great. All fluids are fine and no CEL. Gonna take it back to dealer in a few minutes.. Dealer has no clue what would cause the issue, they did not reset the ECU or do anything other than change oil and filter.
IS F (2008-2014) :: Tranny Will Not Downshift To 1st Gear When Stopping
Very strange issue today. While driving in stop and go traffic (Auto Sport Mode). I noticed the car was starting in 2nd gear. Next stop I switched over to M and it would still not downshift to 1st even with the paddles or shifter. Once I started moving I could manually downshift just fine. Car seemed to shift normal. Eventually got the VSC / CEL . Here are the codes:
Pending:
PO301 - CYL 1 Misfire
C3101 - no details
C3411 - no details
C3000 - no details
Historical:
P0A11 - DC/DC Converter Enable circuit open
All of the codes cleared and did not reappear while idling. I have not driven the car yet. It also goes back into 1st now while stopped although I haven't tested coming to a stop. Will do that tomorrow
One thing to note that was out of the ordinary today. For some reason I was absolutely freezing (which should be impossible this time of year in SC) so I turned the AC off before this started and the idle dropped very low (400 - 500) which I seem to remember being normal but I almost never run with my AC compressor off unless I'm in race mode and I'm usually not putting along in stop and go traffic if that is the case. Not sure if this has anything to do with it but perhaps the low idle caused a voltage issue which tripped the codes.
IS F (2008-2014) :: Idle Speed Without AC On - 500 RPM
LS F idle at without the AC on, mine is about 500 rpm, which seems low to me, if AC is on it feels about right 750 to 800 rpm.
View 8 RepliesIS F (2008-2014) :: Variable A/C Fan Speed - Is It Normal
Is it normal to have variable fan speeds when Ac is on? I understand on WOT Ac deactivates on some cars but when it happens I'm just cruising along coming to a stop, the fan speed increases.
View 1 RepliesIS F (2008-2014) :: Oil Smell Under Acceleration During High Speed
Under acceleration when close to the limit of adhesion during high speed long sweeping turns I was noticing an oil smell last year. I can't say if it was R, L or both turning directions since its been a full winter since I have driven the car.
I'm using Mobile 1 5w30, a stock air box and I have headers. I'm also running 305 PSS tires, and a pretty well modified suspension. I have no facts to back this up but I am assuming because of my setup that I can get a little more lateral acceleration then most.
I have zero oil consumption, no leaks and good test results from Blackstone. My only thought is that I am pushing a little oil in to the crank case breathers during this hard cornering.
IS F (2008-2014) :: Splash Shield Failure At High Speed?
So I was at a track event and pushing 150 mph and heard this terrible sound. I look in rear view mirror and saw something black flying through the air. I thought it was my carbon fiber diffuser but turned out to be this.
View 12 RepliesIS F (2008-2014) :: Squeaking With Light Pressure Braking At Low Speed
While braking at very low spreads (towards the end of a stop), I get squeaking with light pressure braking. Then, yesterday it finally drove me insane. It was a lot louder than normal. Only thing different was that it was alot hotter than usual. It would squeak, as I lift off the brake lightly (while still applying pressure) to inch the car forward in traffic. I had always noticed a faint squeaking, but its now louder than what I grew accustomed to.
The dealership who installed my brakes 9800 miles ago, says there was a glazing, And they can't fix it (polish), because it's drilled rotors.
IS F (2008-2014) :: Tire Grinding Or Shuffling At Low Parking Lot Speed?
It's like a tire grinding or shuffling at low parking lot speed, hard right or left turn, more evident when slowly braking during the turn. Dealership claims the negative camber contributes to this phenomenon and that nothing can be done about it.
I realize we have about a 1.5-degree negative camber in 2011-and on IS-F (I have no mods and still running with stock Potenza RE-050s), perhaps this contributes to the feel of the tires at parking speeds.
7 Series :: Tranny Will Downshift Then Up Around Constant Speed Of 40-45
I have a 91 735i, 4sp auto, 3.5lt. Usually around constant speed of 40-45 the tranny will downshift then up then downshift an sometimes it will downshift to 2nd which scares me thinking it might downshift to 1st an explode the engine or tranny. If I engage cruise control it does not downshift. This does not happen all the time but when it does it can be very severe with jerking and slamming into an out of gear. The trans has a dipstick and the fluid does not look bad. I replaced head gasket and it was doing great for about a month and then poof the downshifting started.
View 1 RepliesIS F (2008-2014) :: C0210 And C0215 Rear Speed Sensor Codes?
While I was on my way to the Summit Point for a track weekend last month a CHECK SYSTEM warning light came on. I checked the code at the first Advance Auto I came across and found the codes "c0210 ABS Right Rear Speed Sensor CURRENT" and "c0215 ABS Left Rear Speed Sensor CURRENT". With the check system light on I couldn't use cruise control. I was worried that I didn't have rear ABS function, but after performing a few high speed threshold braking tests everything felt stable...so I continued and did a full 8 track sessions over the next 2 days.
The check system light came on within 40 miles of mounting new aftermarket wheels and tires. The check system light would usually go away after the car had sat for a day, but would come back on after 10-20 miles of driving.
My tags have just expired and I need to pass emissions now. I put my stock rear wheels back on so that I can avoid the codes and pass the Maryland OBDII emissions check. Everything was fine, but the check system light just came on for the first time with the stock rear wheels mounted (and before I could pass emissions)...though it took 150+ miles of driving before the check system light came on.
I would love to avoid purchasing new speed sensors, which seem to run $150+ each.
A quick internet search showed one Toyota SUV owner mostly fixed the problem by removing and cleaning the speed sensors and then dielectric greasing the connectors and coating the outside with silicon.
Santa Fe (CM - 2007-12) :: Throttle / Downshift Delay When Trying To Speed Up After Slowing Down
For the most part, I'm pretty happy with my 2010 Santa Fe SE (V6 AWD Automatic).
When I'm coming up to a yield sign, or otherwise slowing down to say 5-10 miles an hour but not a complete stop, and then when I start to try to go again, there is a hesitation and then the vehicle kind of jerks as it starts. It's like it takes a half second to a second for the throttle to respond, and by then it revs higher than I expect. I don't know if it's the throttle delay or a delay downshifting before it starts, or a combination of the two.
I've also noticed that a half second or so delay when just sitting in park and quickly pressing the throttle and releasing. I can press the pedal to about 50% and release it before the RPMs respond at all. Then it'll rev up and back down as you'd expect, just not WHEN you'd expect.
IS F (2008-2014) :: 2011 - Clunk / Tapping Noise When Full Steering At Slow Speed
Just like the tittle says. My 2011 ISF with 56k miles on it is making a Clunking noise when pulling out of a parking spot or just anytime I fully steer to the left side and begin to move. If I try it in reverse it doesn't matter if I turn the steering wheel fully to left or right it makes the same noise as I begin to move at slow speed. It almost feels like something is pushing the front wheels out. During normal driving I don't feel anything at all, just as steady as solid the car can be.
Is there any common issues with ISF with premature wear of ball joints, cv joint, sway bar bushings or hub bearing?
Sonata I45 (LF 2015+) :: Cruise Control - Transmission Will Downshift To 4th Speed Whenever Go Downhill
The cruise control on my 2013 works as I expected.
However the cruise control on my 2016 Sonata does not.
When driving at highway speeds (65 to 70 mph) in cruise control and the shifter set on "D" (drive) the transmission will down shift to 4th speed whenever I go down hill.
This might be intentional as a way to keep the car from exceeding the set speed, but I have never heard of this and it would seem to place more wear an tear on the transmissions.
Do the down shifting is engineered in or if it is a service problem that I need to have addressed...
Lexus IS 2014+ :: Downshift Clunk When Coming To A Stop?
Lexus IS350 ... Noticed a reasonably quiet clunk from the car when coming to a stop? It happens when the transmission automatically shifts into 1st gear with your foot on the brakes.
I noticed that in my car, you can feel a slight lurch forward as the transmission downshifts into first when approaching a stop sign. If I am barely on the brakes, I feel the slight lurch but don't hear anything. Under normal braking, that slight lurch happens along with a clunk. You wouldn't hear it with the radio on, but it's very repeatable and with the windows down you can hear it as well coming from under the car somewhere.
Ford F-150 (2009-2014) :: 2010 - Transmission Won't Downshift?
I just bought a 2010 F-150 with 60,000 miles. I have noticed that as I slow to a stop the transmission feels like it doesn't down shift. The RPM stays at 1000 and only drops to about 550 rpm when the vehicle comes to a complete stop. Feels like the brakes are fighting the engine to stop the vehicle.
View 14 RepliesFord F-150 (2009-2014) :: Sudden Downshift Form 6th To 3rd At 50 Mph?
Recently my '11 supercab suddenly downshifted from 6th to 3rd while rolling along easily at about 50mph at the bottom of a very slight downgrade. It has done this 3 times now and takes me totally by surprise every time. I have an appointment next week to get it looked at, but my dealer is about 225 miles away and it's a real pain to take it in.
View 14 RepliesFord F-150 (2009-2014) :: Engine Getting Hot / Downshift On Uphill While Towing
Have towed or driven Class C MH for years, now have 2014 F150 Ecoboost. Pulls great.
Question: while towing up long incline, engine got hot, shot message through dash saying truck would shift gears to ovoid overheating. I have read I should lock out 5 and 6 on slow steady climbs. If I am in tow mode and want to downshift, how do I do that? I know I can shift entire thing to 2nd gear - but I assume that is not what we are talking about here. On this particular climb it was hot (100 out) and I was blocked in left lane going slower than I would have liked. RPMs were low.
Looking for detailed description of process. I also regularly use Tow/Haul. Sometimes on decline I will downshift to 2nd or 1st and not use brakes at all going down.
Ford F-150 (2004-2008) :: When Downshift From 4th To 3rd It Won't Lock Into Gear
Ive got a 2006 5.4, Fx4, screw, with 90,000 miles.
Recently it shifts perfect except when it down shifts from 4th gear to 3rd gear. If i mash the pedal it is fine, its only when it just a slight acceleration and it is a easy down shift that causes the problem. What it does is almost like it wont lock into the gear, it bucks lightly but where I can feel it still. Im going 40 to 60 mph when this happens most of the time.
I am not sure if there is a sensor of something else that would be the cause this of is maybe my Transmission is just shooting craps. Also, i have a SCT tuner that i havent hooked up to the truck yet, but do you think if i plugged it in and turned up the shift firmness if it would work.
Ford F-150 (2004-2008) :: Sputters - Misses During Hard Downshift?
Strange condition? If I kick it down hard into passing gear (or downshift hard into any gear for that matter), it pukes and sputters for a few seconds before clearing up and coming to life. No issues with normal driving, or dead stop hard acceleration, just on the downshift.
I’ve got a Magnaflow cat back on there and am wondering if opening up the exhaust and reducing the back pressure is screwing with the ECU a little? Is this just the nature of the stock Ford tune and it wasn’t as pronounced with the stock exhaust as it is now? Trucks an '06 FX4 5.4L and only has 70,000km on it.