Possible transmission issue...has anyone else experienced this?

Has anyone experienced a lag in transmission response when going from reverse to drive? Example: you're backing out of a driveway onto the street, come to a stop, drop it in drive and step on the gas, but nothing happens....truck just rolls forward just like it does at idle then literally 2 seconds later it responds to the pedal input by lurching forward. This behavior has almost gotten me hit on a number of occasions. He most aggravating part about it when it happens it that there seems to be no apparent reason for the lag and I have been unable to link it with any other consistant circumstance when it happens. It even happens when im going from park to drive occasionally. Most of the time i get the lag But sometimes i do not.

I've tried all sorts of different ways to shift from reverse to drive like stopping for a complete second, not stopping completely, rolling backwards in neutral then engaging drive... Nothing helps. It seems as though it has been getting worse as ive put more miles on the truck. Been doing it on and off sunce 10k.Truck is a 2010 DCLB auto with 36 k on it. Transmission was flushed by the dealer when thay did the sc install at 25k. Any ideas? I love the truck, but its beginning to aggravate me...

 

I would recommend taking it to a respected transmission shop. They will be able to tell you the problem right away. I had a Subaru that did the same thing. Had to have the transmission rebuilt. I let it go too long and by the time I took it in I had destroyed the torque converter.

 

It could be low on fluid.

 

Check your fluid level, maybe the dealer didn't fill it when thy did the service.

 

had the dealer recheck the fluid shortly after the transmission service was done and they told me the level was good. I had noticed some hesitation when shifting into 2nd when it was cold and they told me it was a result of th supercharger putting more power to the transmission, probably bs though now that I think about it. This is my first auto vehicle I've ever owned so I really know nothing about them other than they tend to very expensive to fix when they break

 

How long did it take them? If it only took them a couple minutes, they didn't check it properly. The transmission needs to be checked at the correct temperature or you will get an incorrect reading.

You mention a lag from R to D, does it drive fine once it's engaged in Drive?

 

They had it for about half an hour or so when they checked it. Once it's in D it drives fine aside from the occasional hesitation shifting into 2nd when i initially pull away from park with a cold transmission. It will however continue to randomly (more often than not tho) exhibit the delay in engaging the forward gears immediately throughout the time I'm driving it,hot or cold. I think at this point, im becoming as concerned about the randomness of when it exhibits the delay as I am about the lag itself.

Btw, thanks for all the replies guys!

 

I started thinking about that but it was never like that in the beginning when I bought the truck; that would have driven me CRAZY with a brand new $30k truck. I realize there is some delay, but this is a full 2-3 second lag which is really excessive. Sometimes it's perfectly normal 1/2 second and I'm off. Whipper, did yours do this right from the start?

 

Sounds like we are thinking along the same path. I've tried all different ways of doing the R to D shift. I always come to a complete stop before shifting. Here's the thing though, even when I come to a complete stop and wait a second or 2 before engaging drive ( I've tried this pause both in R and in N) sometimes I still get a delay which is making me think that the issue is more to do with the D selection than where you are before selecting D.

 

That doesn't sound normal. Mine has always shifted into D straight away when going from R to D. I always make sure I'm stopped and it's never given me a delay. I'm not familiar with the workings of the Toyota transmission but I had an old car that had shifting issues and it turned out to be a $50 solenoid.

 

Transmission was serviced at 25k when the SC was installed I had them drain and refill. They charged me $180 for that particular service. Now, whether they did it or not is another thing entirely...

Pugga, I'm not very familiar either, but the fact that it's doing it occasionally and not consistently is making me lean towards thinking that it is a mechanical component that is failing as well.

 

x2, hopefully that wasn't just a drain and refill service but a full flush.

Resetting the ECU is worth a shot. Unbolt the + battery terminal for 20 minutes and it'll reset.

 

Yeah, I figured I'd do it at the dealer and get taken for a ride, but at least they know the proper way to do it and it's on record as being done if I have a problem later down the road...

 

Did the problem just start happening right after they serviced the transmission?

 

This is what I am curious about. You said it happened right after the service and installing the SC. Tell us this, when they installed the SC, did they reprogram the computer for the change in manifold pressure and other changes resulting from a SC install? If not, your computer is trying to react to incorrect information that it is receiving.

 

Yeah they reflashed the ecu when they did the install. Ive also had the battery disconected since so i dont believe a reset with fix it but its worth tryig again. I don't remember if it was a flush or drain and refill, I want to say a flush, but I have to check my records. It was 10k miles ago and it started so intermittently that I can't exactly be sure, but the issue does roughly line up with when the service was done. If the fluid level is correct, is there anything else that could possibly have been done incorrectly during this service that could lead to this issue?

 

Check yourself. I just had my wifes car transmission fluid change done and I doubt they even removed one screw >>> yet they charge me for 12 qt of fluid and labor. Tryign to figure out if I should go on rampage there or just leave it since they give me part discounts .

 

Trust when I say I would not assume Toyota dealership even knows how to check fluid level properly. They either not waiting long enough or what but trucks coming under filled. If you lucky and they open even your transmission pan.

 

To be honest here, while you may run into trouble with some places, Toyota is not in the habit of intentionally hiring stupid techs. It is not a question on knowledge, but more a question of competence. If the specific tech cares. I know the dealerships I have worked at, they don't play around. If you get caught smoking a ticket, it is instant grounds for termination, and they won't hire them back.

 

I trust the tech that did the SC install, Ive known him for years and hes the only one I would have work on my truck for the supercharger install. that being said, maybe he did the SC install and someone else did the transmission flush to save time...If thats the case, it is quite possible that someone screwed up. Most people I have encountered working at dealers are more concerned with getting the car out the door and getting another one in than they are with the actual quality of the work...sad but true in my personal experience