I have a 04TL 6speed? and am wondering if anyone else is seeing this problem?

It's hard to explain, but it feels like when I shift threw the lower gears it feels like the engine is bouncing back and forth. I can also duplicate this is I'm also in a lower gear and let on and off the gas. I realize there should be some play between on and off throttle but to me it seems too bad.

From my past cars I would say it's a bad engine mount, but the dealer says there is nothing wrong?

I'm almost to the point of just paying to have then replace the front mount and see if that fixes it?

Anyone else feeling this bounce?
(I figure that people with auto's would not feel this cuz there is more slop and no direct linkage per say )

 

i feel a bounce in the throttle once in a while

 

I feel the bounce in first gear...especially when going slow and taking the foot off the gas pedal and then slowly putting it on. Mine bounces really bad....I had wondered too that if thats normal or something is wrong...

SO WHATS THE FIX? should I take mine to the dealership also?

 

I do not understand what this bounce is? Can you put this in other words? Are you saying that RPM changes on its own? The bounce in engine revs? Please explain.

 

Do you mean the car jerks when you let off the throttle?

 

I hate to say it but it sounds like you are not shifting right.

As far as any car with decent power, the difference between hitting the gas and letting it go is always going to be substantial in 1st gear.

Are you experienced in manual cars? I have this bounce to but I think all manual cars with decent power have this problem.

 

get on and off the gas more smoothly...I've felt it, too. It's not an issue, just a manual gearbox!

BTW, you ever owned a manual before?

 

Play between on and off throttle??? :wtf: What are you talking about?

Our cars have a drive-by-wire throttle system. In one hand, there is almost no lag between pedal input and engine responce. In the other, sudden pedal input (full on, full off) variations are smoothed out by the electronic controls, so there should not be any irregular acceleration.

How smooth are you with the gas pedal? How long have you been driving a stick? At what rpm do you make your shifts? If you go high in the tach (5k +) and just drop the clutch in the next gear without pressing the gas, the car will try to keep the momentum going but the engine will not have enough juice to pull the car. At that moment you will feel some pushing and pulling.

The ecxact same thing will happen if you stay low in the rpm range (under 2.5k) and keep the gas pedal pressed (rpm's go up) and drop the clutch. The car is not moving fast enough for the engine speed and it will try to go forward in a rush, pulling you. If at that moment you let go the gas, it makes for some interesting pushing and pulling.

Try to avoid it. It will hurt your car's engine and transmittion in the long run.

When there is a broken engine mount present, the engine vibrations are felt straight through the controls.

 

Ok, I will try as best I can...

Driving along in say 2nd gear at say 45MPH at not sure 3500-4000rpms, you let off the gas, the car goes into decel mode...instead of what I expect, weight of the engine shifting forward, it shifts forward, recoils back and then comes forward again and rests...

So now your accel mode doing the same thing, from off gas to on...you give car gas, the engine shifts from a rear ward stance to forward stance as slack is taken up it again hits it's forward stance rcoils/bounces and then comes to a forward stance...

As best I can tell I think the front engine mount is not as tight as it should be...

 

OK quick back ground...

I can drive a stick NP at all, I can drive the car smoothly if needed but is more wear on the clutch.
I have been driving a stick since I was 15 (19years - yes I'm 34) I have driven cars/sticks with +500 HP and none of them have ever bounced like this. (except for one car of which we found the tranny mount broken)..

I have driven another TL 6sp and it show similar problems, but no where near what mine does, but it had 20 miles on it, mine has 10K...

 

ooooooh now i know what you're talkin about, when you're in a low gear, goin fairly quick, at high RPMs, you let go of the accellerator pedal and the car jerks back at you, right?

 

Read like engine or transmission mounts loose?

 

I can't feel anything like that in my 6MT TL....I feel the normal decelleration of the car, and some drivetrain slop, but it seems normal for any MT car to me...I wouldn't expect so much with an automatic due to the torque convertor taking up some of the direct response between the engine and drivetrain...more fluid like in other terms. I can't feel the "engine" move if that's what you are talking about.

 

Then, I don't know. Have it checked.

 

ok, I have a theory.

If you are going at high speed at low rpm and let go of the gas, your car will slow quickly on its on. The "jerk" to slow down would mean that your body (more specifically your foot) would go foward relative to the car hitting the gas. Thus speeding you up and creating the bounce.

At least I think this is what you are refferring to. But if you do not experience this bounce in other TL's then maybe there is something wrong with your car. Take it to service and get it checked out.

 

This is typical gear train lash - all cars do it to some extent. A smooth operator will drive in a manner which minimizes this jerking, as it takes its toll over time to engine mounts and drivetrain alike. You should drive a SC'd SVT Cobra sometime - if you are not smooth with a stick, it will bang and clatter like a farm vehicle.

 

thats what i was going to say but i did not want to be mean. i think you just need to learn how to drive a little smoother.

 

I am familiar with what you are referring to. I have always driven manual transmission cars, both FWD and RWD (for >30 years) and the feeling seems to be a phenomenon of FWD + manual transmission. I most recently had it with my 1990 Maxima SE 5MT and have experienced it with my 2004 TL 6MT. It always seems to start when I am accelerating relatively slowly on an irregular or bumpy road surface. It’s as if the FWD transiently loses traction for a fraction of a section and then grabs with a jerk or bounce lunging the car forward. The jerk or bounce is transmitted to your foot on the accelerator and the car surges forward. If you immediately let up on the gas, it terminates the initial surge forward (which is in effect a surge backwards) and this creates a bounce or jerking of the car and the foot on the gas pedal that is self-perpetuated in a vicious cycle. Rather then letting up when you feel this (which is a natural tendency but perpetuates the bouncing or jerking) try mashing down on the gas and accelerating your way out of it. Works for me. Don’t know why I haven’t experienced it with RWD manual transmission cars.

 

its your shifting try to make it alittle smoother and not let the rpm dip too low for the speed you are at.

 

SBTL has it explained right. The same thing with me. We call it overdamped system in the analog world. The feedback is the change in your body position when you slow down...push on throttle...accelerate, then let up a little, and you slow down too much and slide forward. Can you say torque! Funny... I never felt this in my 1974 VW Bug!!...That thing you could floor and never get this to happen. I had this problem when I first started driving this Car, but has gotten much better. EIther you floor it when you take off (fun), or feather the clutch a little more.
Glad to hear I was not the only one having this problem.

 

I kind of tend to agree with SBTL (et al.) regarding the way FWD cars feel with a manual.

My disclaimer is that in the . . . 16 years I've been driving, it's always been a stick, and always a front-wheel-drive stick.

As a matter of fact, the few times I've had RWD cars with sticks, I thought the feel was completely different. Not even better, just different. (Part of it might be being used to torque steer . . . who knows).



Stuart

 

Why? Because that's just a normal trait of manual transmissions. Simply put: we have no torque converter. Add a torque converter and you get that smooth throttle transition all autotrans people are accustomed to. To ease the throttle shock (or bounce as you put it), add a little clutch. That's all there is to it.

 

I second RR and Roleez I think the "problem" lies somewhere between the steering wheel and the seat back. I notice this if I let the rpms drop too low or get on/off the gas abruptly. Try to relax and drive a little more smoothly. And true, you won't feel this in an auto....

 

good explanation, i have experienced this on a rwd car. my 1990 nissan 240sx would do this when i let up on the accelerator going very slow in first gear.

 

I've noticed the same thing in the 3 weeks I've had my 6MT TL, especially when slowly pulling up to my garage. I never experienced this in the 10 years I had my Integra GSR.