350

iTrader: (4)

So I bought my 06 TL AT with 87K miles the first of the month, there were a few minor things I bought up that the dealer agreed to fix and they finally made an appointment for me on Monday, dropped it off and said fix the touch up paint, rear shelf rattle, and see if you can figure out what the shudder is, I get it so infrequently between 35-40MPH where the TCC locks up at light throttle, I almost thought it was a mount at first. They had 2 techs drive it and neither noticed it, I said I'll show you, went out with a tech and he said it's probably the TC, if it was bad it would be way harder so he couldn't recommend replacing it but they would flush it for me and it should go away. Anybody else get a minor shudder and am I in for a world of hurt if it's not just old fluid? They gave me a 90 day warranty so I have a little more time to bitch but I'll have it back Thursday, hopefully it goes away or gets worse so they have to tear into the trans and refresh it. Anybody else have this happen?

SpiderX1016

Replace the 3rd and 4th pressure switches. Do a search for the switches.

Unless it's a transmission shop, they won't be opening up the transmission. Always remove and replace with a reman.

350

iTrader: (4)

The dealer said it's not switches that would do that, the tech said he does them left and right on MDX's but rarely on TL's, but I see people do it on here all the time. If the flush doesn't do it I'll bug them to do that next.

I hate cars

Its the switches, period. The dealer network and Honda have proven incompetent with auto trans issues. The fluid is always a good idea, a good DexIII fluid will work wonders for shift quality and trans life. Not replacing the switches will lead to an early death. Shudder is slip.

350

iTrader: (4)

Gotcha, I should get the car back tomorrow, if it's there still I'll raise hell with them to see what else they'll fix while it's under warranty, if they don't wanna do it I'll order the switches myself, seems like cheap insurance. So is it okay to run Dexron in it? I'm a Chevy guy... I got the TL to save gas over my Trailblazer SS, so I have Dex VI lying around, seems like it would have the same effect as switching to Red Line ATF that everyone on here raves about.

350

iTrader: (4)

Any more suggestions? Hopefully I'll be picking the car up today, if I feel it at all it's going right back to the dealer, I swear the people on here are more knowlegable than a lot of the techs out there.

I hate cars

I wrote this yesterday and forgot to send it so here it is:


I figured you were from an old(er) school Domestic car background, you don't hear TCC thrown around much anymore lol.

The big problem is what usually feels like a TCC shudder is actually 3rd gear shudder. The switches cause a bump shift and the additional wear and jerkiness that comes with it. they also have a hand in TCC lockup. Replacing the fluid can get rid of the shudder temporarily but the slow, sloppy shifts will continue to wear the clutch packs much quicker than normal and the shudder will return. This is why so many of these transmissions die an early death, starting back in the 2g TLs.

If it's shuddering, there is already a lot of wear. It's important that you do both the switches and fluid soon. The switches will get rid of the double bump when going from park to drive, harsh downshifts, and improve shift quality at everything but full throttle on the 2-3 and 3-4 along with TCC lockup. The Dex III fluid will improve shift quality across the board.

350

iTrader: (4)

They flushed it twice and said they got out all the old fluid, whether or not they did it did go away. If I'm reading it right a drain and refill does 1/3rd of the fluid? I could always drain again and refill with better fluid, any reason not to use Dex VI which is fully synthetic over Dex III? I only ask cause I probably have 10 qts of it lying around. I guess I should order the switches and do it myself as a preventative thing. If only it shifted like a GM trans with a Transgo kit lol my other car breaks your neck on shifts. You really can't feel it shift.

I hate cars

DexVI is thinner than Honda Z1 and DexIII but it might be close to the same viscosity as the new Honda DW-1. If it's close I would use it. The Dex III name just designates approximate viscosity and friction level, you can get it in regular or synthetic. Dex VI has approximately the same FM level and DexIII so that's good. What we do around here is attempt to get away from the heavily friction modified stock fluid which causes slippage and shudder. I personally run a Type F fluid with no FM. It's not for everyone but I love the way it shifts.