TL with MT lurching in 1st and 2nd gear
#1
Suzuka Master
Thread Starter
TL with MT lurching in 1st and 2nd gear
Sometimes my car will lurch when trying to hold a constant speed in 1st and 2nd gear, and rarely even in 3rd. There was bad traffic this morning on my drive in, so I experienced it a lot today, it's extremely annoying and makes me look like I just learned how to drive a stick.
I had it at the dealer recently for the 3rd gear TSB and of course it didn't do it then. I also took it to my local shop for a tranny fluid change and it didn't do it for them either.
Has anyone else experienced this? Any ideas what could be wrong?
I had it at the dealer recently for the 3rd gear TSB and of course it didn't do it then. I also took it to my local shop for a tranny fluid change and it didn't do it for them either.
Has anyone else experienced this? Any ideas what could be wrong?
#2
Registered Member
You might need to clean the throttle body valve and its seats. Also, consider doing a Sea Foam treatment for your fuel system. And make sure you use a quality fuel and not some off the wall nameless brand.
And no, mine has never done this.. and as you can see, it's an '04 manual.
And no, mine has never done this.. and as you can see, it's an '04 manual.
#4
Suzuka Master
Thread Starter
You might need to clean the throttle body valve and its seats. Also, consider doing a Sea Foam treatment for your fuel system. And make sure you use a quality fuel and not some off the wall nameless brand.
And no, mine has never done this.. and as you can see, it's an '04 manual.
And no, mine has never done this.. and as you can see, it's an '04 manual.
#5
Registered Member
Yes, and its seat. Have you tried using your cruise control on a level road at a speed where this seems to occur? Try that and see if it happens.
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#8
Registered Member
Frankly, our drive by wire system is one of the best out there. Since I am not having this problem in any gear in my '04 manual, I can't offer any assistance other than that which I have already mentioned.
#9
Advanced
iTrader: (1)
I have been dealing with this for almost 10 months now. It started in the 1,2,3 gears but now even if Im in 6th I will feel a jerk or shutter when Im on a steady throttle position. It happends more during light acceleration, It feels like I am going on and off the throttle. At this point Im so pissed with it, I feel like getting violent and burning this damn car.
#10
Registered Member
I have been dealing with this for almost 10 months now. It started in the 1,2,3 gears but now even if Im in 6th I will feel a jerk or shutter when Im on a steady throttle position. It happends more during light acceleration, It feels like I am going on and off the throttle. At this point Im so pissed with it, I feel like getting violent and burning this damn car.
Yes, there can be a fault in your engine such as a throttle position sensor, a MAP sensor, or the drive-by-wire system. But these are not the most common causes of surging.
#11
Advanced
iTrader: (1)
I have experienced this surging in a couple of past owned cars and it is most noticeable at light and constant throttle. It is almost always due to the engine being out of tune in some manner. Dirty fuel system/injectors, poor quality fuel or water in the fuel are prime causers of this problem. Many people take there fuel tanks down to the bottom before they fill up. This is a no-no and should never be done unless you are running a fuel system cleaner through your tank. The reason is as the fuel level drops, there is more room in the tank for condensation to develop. If you do not have a garage to keep your car in, the tank will get condensation. Water and gas do not mix.
Yes, there can be a fault in your engine such as a throttle position sensor, a MAP sensor, or the drive-by-wire system. But these are not the most common causes of surging.
Yes, there can be a fault in your engine such as a throttle position sensor, a MAP sensor, or the drive-by-wire system. But these are not the most common causes of surging.
#12
Registered Member
You are 100% correct, but I always use BP/Shell/Mobile 93 oct fuels, I never go below half tank, I have done 2 fuel system cleanings and its garage kept. I will have my coils, injectors, fuel pump checked and replace the plugs next. After that I will go after the entire drive by wire system and I heard something about a bad intake air temp sensor could cause a sluggish bottom end. If that does not work I will take a pint of gas and a flare to it.
Good luck to you.
#13
Advanced
iTrader: (1)
^ thank you, I need some luck. Oh by the way, I also replaced all the ABS sensors, they were never bad but I was trying to get lucky. I will start from scratch and work my way down until I find the problem, last I will try another ECU. When I make some progress, I will report back here to my AZ fams.
#14
I have had this problem too and have posted several times on acurazine but no one seems to have resolved the surging issue. People think it's the accelerator pedal position sensor APP or fuel injection or butterfly (throttle body) valve carbon build up etc. but the never say conclusively that replacing those items solved the problem.
#15
Advanced
iTrader: (1)
I have had this problem too and have posted several times on acurazine but no one seems to have resolved the surging issue. People think it's the accelerator pedal position sensor APP or fuel injection or butterfly (throttle body) valve carbon build up etc. but the never say conclusively that replacing those items solved the problem.
#16
I'm going to start small and clean out my throttle body valve first to see if that does anything. recently I have just began to pay attention to the tachometer needle when at a steady speed. I noticed that the needle will randomly fluctuate up and down slightly. I'm not too happy about that but fuel economy does not seem to have been affected.
#18
#19
Cruisin'
Join Date: May 2010
Location: SLC, UT
Age: 39
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I've been having the same problem as well. Mine occurs in 1st, 2nd, and 3rd gears with light accerlation. Doesn't occur with cruise control on. I don't think it could be the motor mounts as I have just recently replaced mine. I'm interested into seeing what others have diagonsed the problem to be.
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