Passat (B7) :: 2013 - Flat Spots On Acceleration As If Transmission Is Trying To Catch A Gear?
Apr 10, 2013
Have a 2013 Passat Tdi. It seems that sometimes when i accelerate the car doesn't move it has a flat spot as if the transmission is trying to catch a gear. I know this might sound minor to some folks. However on several occasions I've pulled out into oncoming traffic not expecting it to have a flat spot in the car not moving at all. What's up with this?
On the highway no problem and normal acceleration no problem but if you're going from a stop or pulling away from a intersection seems that happen more so than I would like.
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Recently it feels like the transmission is 'hunting' drops a gear, picks up a gear when driving constant speed on flat roads. 2.0T with tiptronic. Additionally, very intermittent, the car will get a shimmy around 48-50 mph. feels more transmission related and it is not the tires since it is an intermittent issue.
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I had the car in to replace the inner CV boot and repair a leaking trans flex seal. About 30 minutes after I left the shop, I lost all acceleration and the car basically crawls around. Halfway to work and almost late for meetings, I was afraid it was a failing fuel pump so I rigged both fuel pump relays closed and it seemed to get better... I pulled the relays while at work, re-inserted at the end of the day and headed home. About halfway home the acceleration issues came back (with the rigged relays), and I barely made it to my driveway. Pulled codes, and see these:
16732 - Camshaft Position Sensor (G163)
P0348 - 001 - Short to Plus - MIL ON
18711 - Leak in Air Intake System
P2279 - 002 - Lower Limit Exceeded - MIL ON
16408 - Bank 2: Camshaft B (Exhaust)
P0024 - 008 - Retard Setpoint not Reached (Over-Advanced) - MIL ON
I checked for vacuum leaks and can't seem to find anything tell-tale. I have seen the Camshaft Position Sensor before, but the car ran fine. Probably time to get around to replacing it, but what about the Leak in Air Intake System? Car really hates to idle. Also, MIL is pretty much always on for me due to an unhappy trans that disables ESP.
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So I have a 2008 escape 4wd.... I am getting a few flat spots on the inside passenger rear tire... So I figured it was the shocks so I unbolted both and cycled them and they both felt the same... There was dampening you can feel the oil going through the valves or whatever... I have felt completely bad shocks before and it was just a smooth motion when cycling the shocks... Can it still feel like there good but there not? The thing has 85k on it and I'm not sure if they have ever been replaced before..
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I have a 2003 MCV36R Camry SPortivo, Australian spec. Have owned it for 12 months. Have had power issues.
Replaced:
plugs
fuel filter
O2 sensors (engine)
MAF sensor
Throttle Position Sensor
Have checker EGR valve - all looks good
Have coded OBD II, no codes coming up
Current issues are:
Flat spots from 1000rpm to approx 3000 rpm (esp on gear change from 1st to second)
Once flat spot stop, it powers up enough to throw you back in your seat.
Also, rough running when sitting on constant speed, esp bad between 65-85 Km/h.
Have recently done a 800km trip. half way through, isolated the EGR valve. Running probs have improved greatly, but still lacks power.
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I have a 2007 Passat wagon 4 motion V6 and what the problem is I am getting a rough shift between 3-4 gear sometimes, usually on a slow acceleration. I have had the valve body replaced which worked for a couple of months until the problem returned. I then had the transmission replaced which worked a little but the rough shifting is still present at times. The car still has warranty and not even the dealership knows what to do?
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I have a 2001 F350 Dually 7.3 w/260K miles. Hard starting, it has to be plugged in all the time. Occasionally/most of the time, blows white smoke at 50 to 60 mph or at high rpm. Replaced TPS and now runs totally different on starting, still hard to start but better throttle response on starting. Once started, I have to pedal it to keep it running, which seems to have little response as it would as if it was a direct throttle linkage attached to a carburetor...follow me? After a while, it will idle by itself. However, it still has flat spots when out of idle and at high rpm. Has gotten to the point that I can't trust to drive it.
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I am having a problem with my rental passat, its a 2013 with 860miles and the seat lever that makes the seat recline broke and now the seat wont return to normal sitting position, its laid out almost flat. How to fix this? I am guessing there is a wire in there somewhere that will release it ...
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I detailed the 350 today and noticed on the plate that has the "LEXUS" name on it, on the driver's threshold, that there are rust spots forming. The plate looks to be either brushed chrome or stainless steel. I'm thinking it's chrome and thus the rust. Or, could be a defective piece of stainless steel. I intend to take it in to the dealer for repair or replacement.
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My wife and I recently purchased a 2013 Jetta and have noticed some abnormal lag when accelerating. It's an automatic transmission and the gear shifts aren't as smooth as they should be. I have read that it is possibly related to the drive by wire system and may just be an inherent result of that system.
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I have a 2013 F150 3.5L Ecoboost XLT and have recently experienced a slight noise on acceleration in first gear. Sounds like a light rattle or ping. The dealer says it may be due to carbon buildup (I have noticed that the exhaust has a lot of soot on it). They are suggesting some additive to resolve this and she mentioned that the problem starts to show up at about 30,000kms. It does not affect power or cause misfire as described in posts.
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Been having loads of fun with my Excursion. I've completely gone through the rear axle, new Yukon 4.30 ring and pinion and "ALL" new Timken bearings. I set the pinion at 30 inch pounds preload. Back lash is 13 thousands. But now I have a gear whine during acceleration. Slight at first but more noticeable near 50mph. Coasting or decel is quite. But just barely touch the gas pedal and it starts to whine.
I know that the backlash spec is published as 6-10 but other sources state 12-15 thousands. So that's why it's set at 13. Gear pattern looked great to me. In fact most changes I tried had little effect. So is it just normal for a gear set to whine until broken in?? Should I reset the backlash down. I only have about 40 miles on it. But would like to fix before it's wrecks something.
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My wife and I just bought a pre-owned 08 Jeep Grand Cherokee with about 60,000 miles that just started to make a whistle sound on initial acceleration and deceleration when the engine is warm and the transmission is in gear and moving. The sound does not happen with a cold engine, when the transmission is in park, or neutral. A local mechanic checked it for vacuum leaks and didn't find any. He thought it may be a dirty throttle body, so I cleaned that out really well, but the whistle didn't go away (it did make the jeep run a lot smoother!). It's difficult to pinpoint the noise since it only happens when the vehicle is actually moving.
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I have a '91 Camry that's my daily 50 mile round trip commute car. It runs well and still has lots of pep at 156,000. There are oil and tranny leaks (tranny leaks around the pan seal) but I check the levels and keep everything topped off. Tranny fluid and filter were changed about 20K miles ago. I am the original owner. Shifting is OK unless I accelerate hard, then it "bumps" into gear. On hard acceleration it is a pretty good bump but if I back off the gas it shifts much better. There are no other symptoms, at lower speeds it shifts fine unless the A/C is on, then I get bumps above the 1-2 shift. What the problem is?
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Heard a clunk and then have the car feel like something from the inside is trying to stop it when using the paddle shifters in manual mode. Specifically when downshifting from 2 to 1. By the way I did a slight throttle blip, I have done this before with very smooth results but this time it really scared me, I though the transmission broke for a second; when the car did what it did.
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There is only one thing I don't like about our new SF. The transmission shifts from 4th to 5th gear at approximately 60 km/hr (36 mph +/-) and the rpm's drop to 1500 rpm. Now, when I want to speed up a tad (which is a frequent occurrence when driving around town), there is a pronounced hesitation before it drops back into 4th gear and accelerates.
In 5th gear at 1500 revs, I find that the engine is 'lugging' a bit. Yesterday, I started to compensate for this by changing to manual shifting as soon as the trannie shifted into 4th gear and leaving it there when I was traveling in that 60 kph speed area. For me, this is MUCH better and I quite like doing some of the shifting any way since I spent so many years driving manual transmission equipped cars.
How have others found the car to be when driving around town? Other than that, I really enjoy this car. Easily the most comfortable seats of any car I've ever owned --- their design provides terrific lumbar support and the new cloth material has a great 'feel' to it.
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Just experienced something new in my less than a week old 2.0T. This morning was the coldest day since buying it (-15c). I had the block heater plugged in and it started up well. Let the engine run for my usual 30-40 seconds before putting it into gear. Reversed well, but was a bit slow shifting after putting it into 1st.
For the first 5 minutes or so of the drive, the shift were pretty rough. Mostly the shift between 1st and 2nd gear. Things got better after that and were fine for the rest of my trip and also an hour later when I came home.
Is this just a case of a very cold transmission and fluid, or is it something else? I've never owned a car that had such rough shifting in cold weather. Sluggish shifts yes, but not violent like these were.
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I travel on the highway frequently and when I am cruising at 115-120 km/h my gear consistently drops from 6th gear to 5th gear then back to 6th gear. I am not pressing hard on the gas just keeping it at a normal pressure. This is the 2016 Hyundai Santa Fe brand new only 6500km. I brought it to the dealership twice already and they found nothing wrong. Saying there are no error codes when scanned and when they drive it nothing happens.
On my second visit I showed them a video of what is happening. It was two minutes long and within the two minutes my gear down shifted 3 times. So you can imagine when I am long driving how many times this happens. In order to get around it I have to shift to tiptronic and leave it on 6 gear so I don't get this down shifting incident.
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I just bought a brand new 2013 Elantra! I love the car, but over the past week or so I have started to feel the car's transmission (auto) jerk when it shifts from 3rd to 4th gear. I feel the car hesitate somewhat when going from 3rd and then jerk into 4th gear if that makes any sense. The car has less than 1000 miles and it never did it when I first bought it. The transmission was always smooth until recently. Also, when coasting down the road I feel the car jerk forward when I give it some gas which also feels very strange to me!?
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People are complaining about sudden acceleration with the DSG transmission. They had to up the warranty to ten years and fix cars too. After I read that I realized my TDI DSG has this issue but I just chalked it up to my driving. Sometimes when you hit the gas the car jumps B/C it drops a gear when it's not called for. I can't picture VWoA even entertaining this. Does the phrase "operating as designed" sound familiar?
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2002 Mitsubishi Montero Limited V6 ... Occasionally while slowing from 15 miles per hour to 5 miles per hour, i'll hear a vibrating sound coming out of the engine area like a gear trying to catch and then when i slow to 5 miles per hour, i hear a snap like it just caught or snapped into place and fixed itself. The car drives fine while this is happening, and at all other times. I have 125K miles on it and it has been well maintained. Originally i thought the sound was coming from the front right tire area and had the brakes and shocks/struts checked... The sound could be more centrally located though. What is that?
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