Details: 2003 G35 One-owner. Stock / Automatic. 88K miles, always reliable. Driven aggressively, but not crazy. While trying to avoid a red-light runner, I had my hand on the shifter and accidentally shifted into neutral from drive. I popped it back into drive at around 45 MPH, and thought I heard a small "clunk", but drove home without incident. This morning, started up and reversed out of the garage. When I shifted into gear, the check engine light came on. As I drove forward, it seemed to only shift into 2nd gear, but no further. Drove about 1/4 mile before turning around and taking her home.

Has anybody experienced this? I won't be able to read the codes until tonight.

 

N to D at 45mph you def broke something. your going to have to pull your tranny to find the damages. I would take it to a local trans shop

 

I'd have to disagree. The transmission is smart enough to match the correct gear to engine/vehicle speed without damaging the transmission.


Auzziez- Try disconnecting negative cable to the battery for 5 minutes and then reconnect. See what happens.

 

Take it to dealer and check for codes

 

I know the computers in these cars are smart, but I have never seen one that can detect a "broken" part. Faulty Yes, but not Broken.

God No. I'd never take it to the dealer. I like my money too much. I have a scan tool and can read the codes this evening.

I was just asking if anyone had ever seen a condition such as shifting from Drive-Neutral-Drive cause a System Error code? I don't have a list of codes with me, but I can't recall seeing one in the list that would relate to the transmission not being able to shift gears.

 

Not true. I've done this a handful of times thinking I was in mm and then upshifting into neutral and throwing it back in Drive with no problems whatsoever.

In fact on Mythbusters years ago, they took an early 90's crown vic and slammed it into park going 60+ and nothing happened to the tranny. So i'm sure its not going to hurt these transmissions normally.

 

+1 on the ecu reset. Your issue is most likely not mechanical.

 

damn well my bad this car might be smarter then me

 

read the code first before the ECU reset

Going from D to N to D is something most mainstream automatics (if not all) can do. I wouldn't have the gas floored when i slam it back in D however. Just let off the gas and slip it back into D, wait for it to engage and then start driving again.

If you are flooring it and drop it in D...well that's a nuetral drop and not good to do.

Not shifting into Park if you shift at a roll is because the stator wheel is angled in such a way that's VERY difficult to engage when in motion. It CAN happen though. I owned a car that, one time only, when my stupid buddy shifted from D to P at 30MPH actually did lock the rear wheels. Total fluke though IMHO and very difficult to do.

 

So...for anybody who cares...Whatever happened when I shifted at speed caused a LC 1B P1174 Solenoid Function error in the computer. I suppose it was the combination of pressing the gas to try to go behind the idiot in the F#$d Tr$%k and accidentally pushing the shifter quickly into neutral then back into drive. It was close, thank god I didn't hit the fool. Anyway, I simply cleared the code and I am good to go. I'm heading out now to buy one of those big foam ****-Off fingers...In case I see him on the way home tomorrow night! :-)

 

Tells us something we dont know

 

Some cars can take N Drops very well, Did it in my parrents RX350 by accident and it went back into D smoothly, RPMS were around 3k. On the G it chirps the tires if your moving slow enough and or it feels really hard on the tranny.

But if you give it no Gas any tranny can reengage easily.

 

I did this once when i first bought the car and was on the HWY going around 80mph. Put it back into D with now problems.

Some people with a UTEC will put it into N to get the rpms to drop low enough to switch maps and then go back into drive - no adverse conditions.

 

Back when gas was over $4.00/gal. I would put the trans on my '97 Max in nuetral to coast down hill to save gas and put it back in drive near the bottom doing 50-60mph with no problems.

 

^ I dont know about older cars, but newer cars putting it in N still burns gas, leaving it coast in gear saves.