2002 camry v6 transmission

I a have 2002 camry v6 transmission. I am not sure this is normal.

when my car is cold and i shift into drive (parking brake on or off) with my foot firmly on the brake pedal my car lunges/jerks forward.

the brakes stop the car rolling but the jerk is uncomfortable.

my car doesn't do the same thing when putting into reverse

it is a lot less noticeable when the car is warm.

any ideas?

Reply to
adalharp
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I have seen this before. Typically it's accompanied by a delay when going into drive. Check your transmission fluid level.

Reply to
dsi1

I've seen this in older transmissions. Basically it can due to the transmission adjustments being out, or wear. Are these trans adjustable? They'd have to be. If its an oil-pressure problem (too high) then you would think it would happen in reverse.

Get it serviced. Jason

Reply to
Jason James

You should also make sure that the jerk isn't your engine rocking on a broken engine mount. Check your mounts to make sure they're still OK. Check your fluid level first.

Reply to
dsi1

When the engine is cold the idle is set higher, and that produces the 'jerk'. It is normal if not excessive. If you want to avoid it, make sure you have a clear path in front of you and remove your foot from the brake as you shift into Drive.

Reply to
Leftie

It's a 4-speed U140E transmission. Personally I think the entire U- series stinks.

Did this just started or was it doing the same when new? As others said, it could be bad engine mounts or high idle RPMs as mentioned. I hope the transmission isn't crapping out its internals like in Lexus RX of those years (U140E, F).

Generally when you encounter a problem ATF condition and level is checked first. Then consider drain/refill with new ATF to the proper level. You may want to consider getting the strainer replaced and wipe the pan clean. Find reference for a good mechanic or a mechanically inclined friend who knows what he's doing.

New formulation of Mobil-1 ATF is compatible with T-IV, which is also made by Mobil, called Mobil-3309.

Reply to
john

Thanks Guys for response.

  1. Dealer did Calibration of line pressue.
  2. Transmission flushed by dealer.

I forgot to mention in downhill parking the car move forward more than my 95 Camry. Not so much in up hill parking to downside.

This is still happening. I will check with dealer about "strainer replaced and wipe the pan clean".

if Engine mount is broken it will jerk in case of acceration too. This has happened in my 95 camry when front engine mount broke. Please correct me if I am incorrect.

Reply to
adalharp

This is a good question. My guess is that you'd get different things going on depending on which mount fails. Did you check your fluid level? Please read your manual if you're unclear on how to do this.

Reply to
dsi1

Yes, Fluid level is good and Fushed recently

Reply to
adalharp

Did this problem occur after you flushed it recently??

Reply to
john

No this was there before.

Reply to
adalharp

Ok. The dealer will probably ask for an arm and a leg for a strainer ($100 or so). We were just laughing at that in another group. So while it's a typical step in eliminating some basic issues, your problem is probably pressure and/or solenoid related issues and would warrant your attention in that direction first, cost wise.

I wonder if this problem has something to do with the torque converter clutch.

Who flushed your transmission. What ATF did they use? I wonder if the wrong type was used because yours require a fluid suitable for slipped- controlled transmission. and I wonder if the standard Dexron was used instead.

So you may have to do drain/fill yourself.

Just guessing out loud. Suggestions welcome.

Reply to
john

However, if this was hardware related problem, like those experienced by Lexus RX owners of U140E/F transmission. Then it may be SOL.

Reply to
john

Toyota dealer did it he has used fp number 00279-000t4-01 it must be toyota spec only

Reply to
adalharp

How to find out this ? there is no engine light on

Reply to
adalharp

That's the Toyota Type-IV, or Mobil-3309 ATF. Should be correct. In a typical transmission I'd first suspect the torque converter lock up clutch.

But the U140 seriers has design defects. So assuming everything else is working, my *guess* would be the TCC.

To check this, have someone who's knowledgeable in automotive diagnostics raise the front safety on stands (plus all the necessary safety precautions, etc etc).

Start the engine. **Without applying brakes**, shift from P to D. (the front wheels are in the air and can rotate freely). Does the car jerk like before?

Now do the same thing, but with **brakes applied** while going from P-

If you answer No to the first and Yes to the second, then it's the TCC.

These are my last 2 cents. Good luck! ;) ;) ;)

Reply to
john

Reply to
john

Thanks John,

I will try to do you test. Brakes have been checked all are ok.

As I mentioned earlier (car travels more after parking) Is there excessive clearance between Gear tooth and engaging latch, which is causing this?

We may be hearing this impact of engage.

Reply to
adalharp

Sure, there may be less teeth in the gear for the parking cam to latch onto. The reason? I like to think lower cost production. Again, I'm not a fan of the U-series transmissions. I think they're not very well designed.

However, you should hold your normal brake, shift into P, apply the parking brake, before you release the normal brake while on an incline. This should help a few components when you do this often, and certainly will be easier to shift out of Park later. ;)

Reply to
john

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