5thgenmaxima

iTrader: (1)

00 GLE 61,000 miles. Just had ecu, tcm update with advanced timing.

So I get ready to go to work today. Put my car in reverse, Nothing. The odd thing is as I attempte4d to rev it to see what was slipping and instead of the engine high revving like it was in neutral it went to 3000 rpms and stuck there. SO I put it in forward, no problems. I put it in reverse again to see what the hell was going on. It bogged down a little (Like when you put your car in reverse and have your foot on the brake when the engine is still cold)
Then I floord it to see if it had any life left. Again it reved to 3000 and stuck there. SO I keep it floored at 3000 and bam, reverse kicks in and my tires chirp like it was a neutral drop. It was fine after that.
I get to thinking. What the hell could it be.
I was thinking spool valve, but I know in reverse there is some 200 pounds of pressure, so I can't think that it would be sticking. Then I thought why the hell would it stay at 3000? Maybe the computer realised it wasnt engaging and doesnt rev any higher. maybe that's when the torque converter is suppossed to lock up
wtf is going on?

5thgenmaxima

iTrader: (1)

Bump
(10 Char)

5thgenmaxima

iTrader: (1)

Since the engine is acting really weird as well (staying within a certain rpm range, even during what feels like slippage), I'm suspecting that one of the tcm inputs from the engine may be faulty.
I'm guessing the tcm uses the tps and possibly maf? Anyone know for sure? I'd like to scope all tcm inputs before going any further.
(copy and pasted from general forum)

5thgenmaxima

iTrader: (1)

It seems that reverse is hydrologicly controlled so that rules out the tcm causing the problem.....
Pulles the codes today. first and second gear drive ratio is off.
Basically what that means is that the VSS and the ISS (if applicaple) give off different ratio's when they should read something else...Obviously it's reading as a slippage.. Today on my way to work in forward in second gear it wouldn't go over 2800-3000 rpms. I even tried to give it throttle snaps to make it down shift and it wouldn't. The engine acted like it was under a huge load at 2500 rpms....WTF is the deal??? anyone????
I'm about 30 seconds away from taking it to a tranny shop to diagnose.
(again, copy and pasted from general forum)

5thgenmaxima

iTrader: (1)

I was going to take it to the tranny shop tomorrow, but they're going to say they can not duplicate. I haven't had the problem in a few days. Any other ideas?? Maybe it's trying to engage two gears at the same time??? I was thinking maybe intermittent check ball problem, but if that's the case wouldn't it stall the engine?

Jasovanni

iTrader: (1)

Ha, almost sounds like your e-brake is stuck on.....

sorry, had to throw that in

J

cmon, free bump!

5thgenmaxima

iTrader: (1)

You know what. That's almost what it feels like. Unfortunately I don't use my e-brake and you can tell that the power isn't getting transferred to the wheels. Thanks for the bump anyhow

Jasovanni

iTrader: (1)

Seriously though, sounds alot like the torque converter is doing weird things and tripping out the computer.... thats my guess. Hope it works out man.

J

Lontar1

iTrader: (5)

that happened to me too... but only one time and the tach went crazy.... I don't have a clue on what caused it but..... hasn't happened in a long time. I know I had my car parked for a long time without even moving it.

5thgenmaxima

iTrader: (1)

You know I actually may beleive this, execpt a few things that don't add up.


1.) If the torque converter hadn't locked up, torque would still transfer thru the gears seeing as how stall is over 1500 rpms anyways, would it not?

2.)It doesn't explain the "load" felt on the engine.

By saying this I assume what you mean by faulty torque converter is it's not transferring the power like it's suppossed too. I.E. free spinning.

Jdm_kid619

i got an automatic tranny about 50,000 miles on it and i have really hard shift going into 3rd and going into 4th....someone please help me out

5thgenmaxima

iTrader: (1)

Damnitt, I'm on day four trying to find a fix. Hi-jack someone elses thread...or give some props in the audio section or help for 15 posts then post your own....Or you can just donate..

back on topic.