I had the tranny/transfer case flash done sometime ago, which yielded smoother driving in "D" mode. However, I noticed that when braking in "S" mode, the downshifts actually cause the car to surge forward strongly. It's disconcerting enough that I now avoid driving in "S" mode unless I need to merge into traffic quickly; even then, I prefer shifting manually instead.
View 12 RepliesI've had my 2010 Prius II for less than a month and am not particularly happy with it. I've experienced a slight surge forward when braking on uneven pavement at low speeds at least 4-5 times in 900 miles. This isn't something I can duplicate on demand. When I took it in to the dealer after the first time and asked if the ABS fix had been made to it, they told me my car wasn't part of the "campaign" (aka recall) because it was manufactured in March and the ABS problem had been solved by then. However, it sounds exactly like the problem people were discussing in Jan/Feb.
Once when I put it in reverse in a parking lot it lurched backward (my foot was on the brake) suddenly -- not far, but it was an alarming sensation. It also has a high pitched, barely audible whine when moving (can't hear it if I put on the radio). The mechanic said that was the normal sound of the battery, but I don't remember it from other cars I test drove. Is it normal?
I'm keeping an eye on the dome lights every time I park because I found them on one night (they'd probably never shut off after I parked the car during daylight hours) -- it could have been that the light was switched to "on" rather than "door," but now I'm paranoid and constantly check to make sure they're off when they're supposed to be, for fear of wearing down that little 12 v battery. Not fun.
When stopping (say, at a stop sign or red light), there is a considerable surge just as the car stops. If your foot is lightly on the brake, the car will actually ease (or even, lurch) forward a few inches. More aggressively applying the brake will prevent the movement, but there is still a noticeable and audible engine/transmission surge. I don't mean to imply that this is really terrible - just a little weird and disconcerting. My most recent "VW" was a 2001 Audi 2.7T V6. I didn't notice this in that vehicle. Perhaps it is just an inevitable result of the engine/transmission combination in this case. Dunno.
View 24 RepliesOn my 2004 VW (V8) Touareg (55k miles) I'm starting to hear a ticking or flicking (like with playing cards) noise from somewhere outside the cabin when I put the hammer down. For example, if I'm at a dead stop and kinda hit the gas (for a good throttle response) my wife and I both hear a ticking noise that is making me wonder if something is wrong or heading that way....
View 8 RepliesEarlier this winter and last year, the forum had discussed the occasional fast idle in the 3.6L. Symptoms include the engine idling at 950-1000 RPM and the car feeling like it wants to surge forward. I had the problem twice during heavy snowstorms in February, but nothing really since...until this past week.
The weather here in Chicago has been in the early 90s and I've had the AC cranked. At the same point, I've had the fast idle event occur at least 5-6 times in the past week. Almost every time it has occurred while moving in very heavy traffic. Have others seen something similar in very hot weather?
I have a Gen III Prius 2010 with about 50k on it. I've noticed over the past month that when the ICE shuts down at a stoplight, the car will surge forward a bit. If my foot isn't on the brake really hard, it will translate to the car actually moving forward until the ICE is totally off. If my foot is on the brake hard, you can feel it push against the brakes, and then the car settles back in place. It doesn't happen every time, so it still takes me by surprise.
View 3 RepliesI don't know if this is related, but my car has not shifted as well as it did before I gave it my oil change. The car only has 3K miles, new Hyundai oil filter, and Mobil 1 Synthetic 5w-20.
It's not a major dip in performance, but enough for me to know its different. One example is when I come to a stop, the car seems to surge forward a little bit. Another is that is shifts hard from time to time when I give it gas.
Going uphill, it just doesn't have the power like it did. Also, it feels that it's not in the right gear..like 5th or 6th gear. It's hard to describe the symptoms. The weird part is that the MPG is the higher than normal.
2002 Chevy Monte Carlo SS 6cyl 100,000 miles
Symptom, loss of horse power (from a stop and going uphill), surge or lunge forward when accelerating (misfire?), rough idle (occasional knock). Maintenance, regularly change all filters and fluids, recently had the m.a.f cleaned and changed air filter, spark plugs and wires, oil.
There have been times in the past year or so when the car would crank but not start. Especially when the car was hot. Wait a couple minutes and it would start. Also a couple of times the car would shake fairly hard when started, get up to speed and it was fine.
I have had people tell me anything from a clogged catalytic converter to bad fuel injectors or fuel pump.
Scanned the car last week. No codes showed up. Never had a Check Engine Light.
I forgot to mention that every once and a while the car will jerk when accelerating. I have a coworker who said his truck started to jerk forward and later would not start at all. Our mechanic said it was the fuel pump. I I will see what that does for him.
My 2000 Lexus GS 300 has done the following three times when I've been inching forward by lightening on the brake (not touching the gas pedal): slight engine surge moves the car forward and the brakes don't work. I have to throw the car into "Park" to stop. Had it checked each time (twice by my local shop and once by the dealer) and they find nothing amiss. These three incidents have occurred several weeks apart, during cold weather. My car has 98,000 miles on it and has been very well maintained.
View 5 RepliesI have had very few automatic transmissions in my lifetime, so I know less than I suppose I should. This one's a C-6. When I start the engine in the morning, shifter in the Park position, I often feel a very slight, very short tendency for the van to try to move forward. Why?
View 14 RepliesMy 2002 Buick Lesabre has about 160,000 miles on it I keep up with maintenance regular oil changes and what not. Today when I am driving to work and right as I get on the freeway my car starts lurching forward and slowing down repeatedly so I pull over turn the car off look under the hood everything looks normal to me. I wait a bit start the car up and the lights on my panel go from the dimmest they can be to blinding bright and I could not adjust the brightness at all. Any way the car drove fine the rest of the way but the lights were bright as can be the whole way there. What could be causing this? Bad battery?
View 5 RepliesNew 2016 - 6.7 automatic with exhaust brake:
In tow haul mode is the exhaust brake automatically activated or do you still have to turn on by button? Getting mixed answers, and seems to me that it does not activate unless you push the button which is seems to be what the literature is saying.
On steep downhill pulling heavy trailer, in tow haul mode every time you hit the brake it downshifts, and isn't long before it will over rev, unless you kick it out of tow haul mode. is there a way to hold it in a gear in tow haul mode? Or should I shift into manual mode at the top of the hill then use the +/- buttons.
Having downshift problems? The dealer has "flashed" the software 3 times and the hesitation still occurs.
View 11 RepliesMy beloved Treg is marooned at the dealer again, having been towed there this morning. Transmission is all over the place...shifts into 5th and stays there, or extremely jerky shifts - especially downshifts. Gear position indicator is highlighted in red and no longer indicates which gear I'm in. Check engine light is on; no message in MFI...
Incidentally, it appears that the dealer and/or VWOA is starting to understand how to treat luxury vehicle buyers. Roadside assistance was very responsive and courteous. Dealer set me up with a rental from Budget...made a point to have me pick something similar to the Treg (not a POS econobox). I'm driving a Ford Exploder...a far cry from the Treg, but at least it's an SUV and has similar seating and hauling capacity.
This is an issue when I brake over a small bump or pothole. It lurches forward and I feel like I have lost control of the brakes and we are about to crash into the car in front of me. Seems like this is an issue with other Prius years but I thought this was fixed with the v.
View 5 RepliesI am noticing a snap noise that occurs only when I move forward after backing up and braking. I'm thinking it could be either a rear drum not releasing, bad U-joint, or something in the rear end. How do I isolate the cause?
View 2 RepliesNot a Prius owner but am curious about the regenerative braking. When in regenerative braking mode, do the friction(disk) brakes stay off until regenerative braking fades or do they combine with regenerative braking (blended braking)?
View 1 RepliesI know that if the shifter/transmission is set to "S" then it tends to use the engine as a braking system sort of like a manual transmission. My problem is that it does this while in "D" (drive) for about 5 seconds and then it back to normal as in it's like it's put back into neutral. I read the manual and it states that when you place it in "S" mode and then back to "D" mode it retains some of the "S" features such as engine braking, but in our 09 Avalon XLS, it does this all the time while in "D".
Question: Is this normal for engine braking for about 5 seconds while in drive mode?
If so is there any way to get it back to a normal automatic drive mode where as when you release the gas pedal it coasts without engine braking?
I have a '05 V8 T-Reg (loaded with Air, NAV, and the like) and have the local VW dealership perplexed. The problem is when I am going up a hill and slowing down. While downshifting the T-Reg lunges forward while moving from 4th to 3rd gear or 3rd to 2nd. The car jumps forward and the engine revs. If I don't have my foot on the brake I would smack into the person in front of me.
Initially, the dealership (Day Imports, Monroeville, PA) determined it was the valve stems and replaced them (after keeping the car for 4 days). The problem came back and now (going on 6 days in the shop) they cannot find a solution. They tried a new shifter plate but the problem still exists. I'm waiting to hear back from the service manager about what VWoA should try next.
The T-Reg has 72k miles on it...
Curiosity question. I've noticed that on a downhill of a couple miles, especially in "braking" mode or with the cruise control on, the motor/generator and engine are used to keep the speed down and the battery gets charged to the very top quite quickly. That's good!
On a really long downhill, will the motor/generator still be used for braking and the excess electricity discarded to keep from overcharging the battery?
i am wondering if any other touareg v-10 owners have experienced what i call "slop in the drivetrain"?symptoms: when just crawling off from a dead stop and then letting off of the pedal i can both hear and feel a little clunk whether forward or reverse. its real subtle but its always there if you listen for it. Is this just what they call normal "slash" of the worm gears in the differentials? i would hate to find out later once warranty's gone that i should have done something about it earlier? i have 19,000 miles on it, 70%highway and 30% city driving.
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