Infiniti q45 hard shift 1994 please help, mechanically impai

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kevindanielk
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I went the hard route of not dropping my exhaust when I changed my transmission because if I had tried to loosen those 16 year old rusted, decaying bolts on the manifold/catalytic joint, they definitely would've stripped or broken off so i decided against that. I had a hell-of-a-time dropping and raising the transmission with the exhaust being there in the way, but I got it. Then again, I've been working on cars for over 23 years so I know how to improvise in most auto repair situations. If I had to do it again, I would consider dropping those damn pipes though.


qship96
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maxnix wrote:Care to illustrate how?

In dropping the transmission, the exhaust is trivial to remove and gives much more room to work. No reason not to do it.
Exhaust IS NOT "trivial" to drop on an old car that has actually been daily driven, all the bolts and fasteners are rusted and very brittle. My tech had transmission out in about 10 minutes without touching the entire exhaust system......all depends on the skill level of the tech you choose to work on your car.

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Infinitiguy19
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Were you exaggerating that time of TEN MINUTES?

Kevin with the exhaust manifold studs heated were the nuts were still risky to remove?
Last edited by Infinitiguy19 on Wed May 11, 2011 5:39 pm, edited 1 time in total.

qship96
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ok,maybe more like 30-35 if you include removing the driveshaft and putting car on lift and me talking with him while he tried to work,but it was easy according to him and it lowered smoothly like an elevator going down with the transmission jack/table supporting it- no, I repeat NO interference with exhaust in place,ZERO

Jcesar_lopes
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now back to my problem, i doubt it, gracias por nada

kevindanielk
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[quote="Kevin with the exhaust manifold studs heated were the nuts were still risky to remove?[/quote]

Yes, risky even when heated. I tried to torch them and it felt like the first one I tried to turn was gonna break off, so I decided not to try that again. The nuts have lost a lot of their original mass over their 16 years, from rusting away.

So, back to the original problem on this thread; Jcesar, have you pulled the turbine sensor yet, to check for metal filings, and get a little insight into the transmission internals? It's a start and a damn good indicator, I think.

maxnix
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qship96 wrote:
maxnix wrote:Care to illustrate how?

In dropping the transmission, the exhaust is trivial to remove and gives much more room to work. No reason not to do it.
all the bolts and fasteners are rusted and very brittle. My tech had transmission out in about 10 minutes without touching the entire exhaust system.......
Not if the car is not in the salt belt. Ten minutes to remove means you had the optional explosive bolts installed.

maxnix
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Jcesar_lopes wrote:now back to my problem, i doubt it, gracias por nada
Oh, this is all about your problem. You just don't realize it. Try at least reading the AT section of the FSM. You don't ask the right questions, you don't make the correct observations, you ignore the relevant data, you don't understand the functional processes. How can we help you when you remain steadfastly ignorant? We cannot. You need to take it to an experienced shop and replace the transmission with a Nissan remanufactured one, or at least get a competent diagnosis. Or walk away from the car because you will not know what to do to restore and maintain it and the next expensive system will break from neglect and/or abuse and you will be stuck again.

You need a Yaris.

Jcesar_lopes
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maxnix wrote:You need a Yaris.
Very funny.

But thanks sincerely for all the help I´m know nothing about cars and if I´m going to keep this one because I lake it so much learning is the first I do have a mechanic tha specialize on rebilding trans and he will take mine in two weeks I learning just in to see if he is fit to the task, he did mention changing the valve body any thoughts on that?

Jcesar_lopes
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Jcesar_lopes wrote:
maxnix wrote:I need a Yaris.

maxnix
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Best bet is to get the Nissan rebuilt RE04 from http://www.intinitipartsusa.com, along with the external ATF filter and add a B&M 70268 or 70264 auxiliary cooler ( www.summitracing.com ). Rebuilders do not see these transmissions often enough to be proficient at rebuilding them, and if they replace all of the parts Nissan does, it will cost you more with no 1 year guarantee.

I sincerely believe that is your best option. Pulling and replacing the transmission is in the skill set of many more technicians than rebuilding it. Total cost after core exchange should be about $2800 - $3200 depending on your labor market. Hopefully the RE04 has not increased in price. Good luck and let us know.

I should note this will not preclude you reading the old posts, studying the FSM and learning about your car. These cars are so rare that one has to at least understand the correct procedures so when the owner speaks with the technician, he can verify that the procedures have been performed correctly.

If you are willing to commit to learning, you can ask the correct questions here and get lots of help. If you are not, I really recommend that Yaris or Civic or Elantra that you can take to the dealer. It will serve you better.

Jcesar_lopes
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I started with the wrong foot let me reboot,

Hi Nico Club forum and my friends part of it, My Name is Julio Cesar, I live in Puerto Rico an Island part of the commonwealth of the USA, meaning I´m an American citizen living on a unincorporated US land.

A couple of weeks a go my car a 1998 Honda Accord broke, the transmission was a little bad but It finally broke, I am a struggling Lawyer first year private practice, not that I wouldn't take another job but now things are really bad on the Island and no jobs so open your own business is the only solution.

Well with the immediate situation of not having a car to continue working a good soul appear and sold me for $1000 (deposit I still own him 3000) a beautiful car in Incredible conditions. I sold my broke accord ford 1700 an got the Doctors car.

The Car: White Pearl original paint, 1994 Q45 T, looks like new the motor looks flawless not even a drop of oil! sunroof is works, interior are a b+.

Problem My friend Manix friend ( and thank you for answering)
I don't have 3000 to fix the hard shift with a rebuilt Trans, the first gear is the hardest when the car is on low revolutions, but over all is not that bad and I will have to take a less expensive road because my $$$ situation.

All this said I Really need the help and to start learning fast, bad for me since the closest I been to be Mechanical wise is to put gas on a car, but...

I LOVE the look of the car, I can´t even buy a Yaris, ex-wife f*** up my credit, I love to park the car close just to contemplate astonishing enamel and my 4 new , Yokohama wheels, problems:

I need a lot of help so my few mechanic clients who own me or money or want to help don't f*** up my car, or I´m back in to my two feet.

PS whats that squeaky noise coming out out of the suspension, and the teketeketeke coming out of the Trans pan in crescendo as the car accelerates?

maxnix
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Well, the bad news is that the Accord transmission will cost just as much to replace.

Whatever you do, do not rely on any "mechanic" who is not well versed in G50 model to work on your car. Things could get a lot worse fast.

I wish we could do more to help.

Jcesar_lopes
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maxnix wrote:Well, the bad news is that the Accord transmission will cost just as much to replace.

Whatever you do, do not rely on any "mechanic" who is not well versed in G50 model to work on your car. Things could get a lot worse fast.

I wish we could do more to help.
The accord is long gone, my prob. is the Q45 he has experience in pathfinder trans and is very good at it , by the way what is a G50??

Jcesar_lopes
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Infinitiguy19
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Did you have a transmission pressure test done?

Jcesar_lopes
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no

maxnix
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Jcesar_lopes wrote:
maxnix wrote:Well, the bad news is that the Accord transmission will cost just as much to replace.

Whatever you do, do not rely on any "mechanic" who is not well versed in G50 model to work on your car. Things could get a lot worse fast.

I wish we could do more to help.
The accord is long gone, my prob. is the Q45 he has experience in pathfinder trans and is very good at it , by the way what is a G50??
You have a G50 Q45. A Pathfinder is nowhere close in any form except for 4 wheels.

Jcesar_lopes
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Damn , but I e-mail him the service manual hope he can follow instructions

maxnix
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You could get the FSM to fit as an email attachment? Hope he studies it assiduously before he attempts any thing. I am telling you know, the transmission is way beyond his reach if he doesn't rebuild them day in and day out. he might be able to take it apart, he might put it back together, but it won't last long.

Jcesar_lopes
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just the at part I have the FMS original, Worries me that he said it look some like a Pathfinder, he couldn´t get the car this week because the is fixing Transmission Nisann xterra bye the way what Nissan Transmission the Q45 close to a Maxima?

maxnix
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No, the transmission should be the stronger version of the Pathfinder. I hope he can get all the new parts he needs.

Jcesar_lopes
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maxnix wrote:No, the transmission should be the stronger version of the Pathfinder. I hope he can get all the new parts he needs.
Did i detect irony or is really a stronger version of A Pathfinder?

Jcesar_lopes
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Jcesar_lopes wrote:
maxnix wrote:No, the transmission should be the stronger version of the Pathfinder. I hope he can get all the new parts he needs.
Did i detect irony or is really a stronger version of A Pathfinder?

maxnix
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I think the Pathfinder uses the RE4R01A. The G50 uses the RE4R03A. Very similar.

Jcesar_lopes
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Thanks a little good news so he is not complete in the dark

maxnix
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No, if he has enough new parts and the experience, you should get by. Don't forget the external filter and he should check all ATF line and the heat exchangers.

Jcesar_lopes
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maxnix wrote:No, if he has enough new parts and the experience, you should get by. Don't forget the external filter and he should check all ATF line and the heat exchangers.

The external filter, he has to change, clean or check?

Jcesar_lopes
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I check on Infinitipartsusa they only sale new transmission were I can boy a rebuilt one

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Infinitiguy19
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The rebuilt ones are just as good as new as nearly every part is replaced. Use the OEM external filter or the easier add, cheaper and possibly better Magnefine one.


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