Touareg :: Engine / Transmission Surge At End Of Braking
May 13, 2004
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.
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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.
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Why does my engine rpms surge from 1k to almost 3k when i put it in neutral or push my clutch in ?
It's an 07 2.5 jetta with manual tranny...
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I just purchased a used a Lexus GX470. The transmission seems to do something fairly consistently that seemed unusual to us, but we are new to this car so I'm not sure if it is normal, abnormal, or a sign of something big to come.
When starting from a complete stop, upon removing your foot from the brake, there is a noticeable mini-surge in the engine as the transmission engages, and the sensation seems to repeat when the transmission is disengaging as you brake to stop.
Does this sound normal? From searching on google, I have read that there are issues with "hard shifting" but this does not seem to happen with shifting...just when the transmission engages or disengages, and it isn't a big 'bump' as much as a mini-surge. I have also read where it could be related to something electrical such as the air conditioner.
The car is under warranty, but the service department notes no error codes when they scanned the engine.
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I don't know if this will be corrected by the next Tranny Flash (since the current flash wasn't applicable for my 61xxx VIN and engine code), but I have noticed that whenever I opt for Tiptronic, and downshift, my Treg seems to speed up first. I don't notice any significant engine braking until I apply the brake.
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I'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.
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I've been driving my wife's sonata to work this week and notice as I start to slow down at around 20MPH the car almost surges a little bit. Maybe I am not diagnosing it correctly but it's almost like it's downshifting rough.
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Experiencing a low speed transmission surge or hesitation when applying first applying the gas at parking lot speeds.? I especially notice it when traveling downhill or a slight decline. The motor revs as if in neutral then the transmission catches on. I mentioned it to the dealer at the 1000 mile check up and they said they could not find anything wrong. I'm getting ready to take it in for the 5000 mile service.
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I 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?
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V10 - When you shift into tiptronic to brake going downhill, the engine first revs up and then the transmission engages. Sort of an automatic double clutch!
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I have a 00 Silverado Z71 Ext. cab, 4.8 motor and auto trans. 264,000 miles. I noticed recently when driving down the highway at times the engine will begin to surge. Usually between 40 and 50 MPH. if i let off the throttle it will smooth out or if I give it more throttle it will smooth out. What would cause this??
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So I noticed my Treg makes a clunk when I break when backing up. If I hit the gas, then brake, 'clunk'. Sounds like its coming from the rear or undercarriage. Hopefully not serious but its going in for service soon.
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My truck has been having idle surge, low engine power, says stable tracks is off, computer said TPS pedal sensor. I replaced it. Within 3-4 days my truck does the same thing. I turn it off and eventually my truck runs fine with the exception of my engine light is on truck runs good. I put the computer on it again while the truck running bad and it continues to say it is the TPS sensor.
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Earlier 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?
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When I turn on dial for fan, engine will surge every minute, will also do the same when air conditioner or heater is turned on. Dealer wants to inject colored fluid in air condition line to find problem. Engine runs smooth when dial is in off position.
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2001 V10 115K miles
When I set the cruise dead on 70mph, the engine surges as if it's not getting fuel. I can set it at 68 and 72 and it runs great. Fuel filter was replaced 2K miles ago, and I just had new plugs put in, but it still does the surge thing. The RPM's don't bounce when it does it, but it the whole X lurches pretty good.
I'm not an engine guy so don't know what else to look for.
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I've just had a brake controller fitted to my 2006 Treg R5. Everything is working fine however when braking both of the caravan indicator lights also come on too (but not on my treg). The tow bar was fitted by the VW dealer and the brake controller was fitted by my local tow bar specialist. After spending two and a half hours checking wiring etc yesterday, we're no closer to a fix .
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Have a lot of noise when braking? If I stop the car quickly with heavy braking I generally have no squeaking until about the last second when I am letting back up off the pedal.If I am just stopping slowly, the brakes will squeak for the entire distance of the stop.I don't have excessive brake dust showing up on my rims. And it doesn't really work if I wash the rims and spray off the pads and rotors. It may squeak less for the first time braking but will be back to its normal self by the time I brake the second time. I am at 8K miles right now and I'm pretty sure this has been going on since the beginning.
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I get an audible 'clunk' whenever I brake while in reverse. The sound reminds me of my old 4X4 when I would back up to take it out of 4 wheel drive. I searched for some existing posts but didn't get the keywords right or they don't exist.
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Brakes squeaking when first got Touareg? Mine only seems to do it when I am lightly braking.
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I have a 2003 silverado with a 4.8 engine. i bought the truck in the summer of 2010. no problems in the winter of 2010. ran great all year in 2011, then my block heater shorted out in the winter of 2011, so i wasn't able to plug the truck in.
We get some cold nights up her in alberta, but anything below -10c the truck would idle surge and stall, would do this about 4 times in a row then it would just surge a few times but stay running.
I had a buddy that's a gm drive ability tech take the truck and do a tone of updates for the throttle body and to correct idle surge and some other drive ability related stuff. i cleaned the maf, map and tps as well as the throttle plates. replaced plugs, wires, air filter and fuel filter. all this and it was still doing it, but it had to be really cold to stall.
wasn't able to replace the block heater till this summer. but now that its getting colder and dropping below -10c at night the truck is starting to idle surge when i start it up in the morning.
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