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Tranny problem


sswimmer2007
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Sorry people im pretty new to the whole truck thing in general, so this could be stupid, but i still need HELP!!!

 

I just my pathfinder three days ago from an auction and i had to have it. I paid it and drove it home.... on the way there i noticed that the tranny shifts really hard into 2nd gear. What it does is when it gets to when it should shift, I wont. it will just keep going until i let off the gas and let it catch. I have no idea whatsoever on what the problem may be. Also when im on the highway at about 60 my tach reads around 4300 rpm. Is that bad too???

PLZ HELP

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ooh. this problem was just covered.. lemme check for a link to the post. i know it's in this forum........

as for 4300 rpm. holy crap. either A: your speeding or B : you have a problem.

lemme mooch around for the link...

 

found it! :takebow:http://www.nissanpathfinders.net/forum/index.php?showtopic=9741

Edited by Slick
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awesome thank you for the help... the 4300 though is odd. Im not speeding it feels like it is doing the same thing like it wants to shift into 4 but wont im only going like 60 on the interstate.... im afraid to go the actual 70 because of it.....

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awesome thank you for the help... the 4300 though is odd. Im not speeding it feels like it is doing the same thing like it wants to shift into 4 but wont im only going like 60 on the interstate.... im afraid to go the actual 70 because of it.....

maybe it's not shifting out of 2nd? my bf's camaro has been doing that. getting stuck in 2nd and not shifting to 3rd and the rpms (which are very close to my pathys) shoot up to 3100rpm at around 35mph

also, check for a bad ground on the tach, make sure no wires are loose. ;)

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prolly the problem... I dont think the tach has a problem though cuz i can feel the high rpm but should i check anyway?

if you think it's tranny related then it prolly is. you may not be shifting out of 2nd now unless as you say, you take your foot off the gas and it shifts hard..... that would account for the high rpm's. have the tranny checked then go from there. sounds like the root of your problem. ;) if you want to get to know your pathy better, then yes, poke around and check the cable/wiring :)

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awesome man thank you for your help i will poke around at it and see what i can find. Thanks a bunch

no problem. oh, and i am a CHICK......... :D 1 of 2 of us. pezzy is aslo a female :P hehehe welcome to the family! :beer:

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lol im sorry.... what an amazing truck if i may say so... but i will rememeber that

:takebow: thank you. yours will be wicked cool too before long if you stick around.. mine is pretty stock compared to the wicked awesome trucks around here.. check out the pics n videos section.. drool fest! -bounce-

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oh by the way i have a really stupid question.... I have know idea what the E-AT button does on my dash.... :confused: lol

hmm.. i have a 5 speed so i can't answer that one..... prolly something to do with 4 wheel drive maybe? i'll let one of the guys with an auto answer that one :)

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oh by the way i have a really stupid question.... I have know idea what the E-AT button does on my dash.... :confused: lol

AUTO: Regular shifts

 

POWER: Higher RPM shifts and quicker downshifts (ie, less throttle is required for a downshift)

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POWER: Higher RPM shifts and quicker downshifts (ie, less throttle is required for a downshift)

:idea:

May be this is the problem that we are both having. Let me see if my symptons are almost the same as swimmers. Takes a bit to shift to second. When speeding, it's taking longer than normal to shift, but it also shifts hard, like it is pulling the pathy back a bit. When braking and getting close to the 1200 rpm, it upshifts and downshifts a bit, with out pressing the gas. Now, when it takes a while for it to shift out of second to third, it's almost like it's got the e-power button on, but with out the higher rpm shift points. Before I had this problem, for example, I would be driving about 50, at about 2500 rpms, I would depress the accelrator and the rpms would go to about 3000, until the tranny decided to downshift or I pressed on the accelerator again. This is not happening anymore. May be this should be a next culprit. I'm still having this porblem. I actually got a refund on the TPS since I ruled out the possibility of being that. Next thing to check should be the speed sensor, but i have no idea on where to look for it.

Edited by solid snake
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Also when im on the highway at about 60 my tach reads around 4300 rpm. Is that bad too???

PLZ HELP

I had a very similar problem(maybe not so severe) when I bought my 95... The shift into 2nd seemed a bit rough to me and I thought maybe its just cause I've been driving a 5 spd for so long I've forgotten how autos work.. and on the highway going 70-75 my RPM's were at about 5500...NOT GOOD

 

So I took it to a tranny specialist and all it turned out to be for me was my cruise control cable clip was off set..and it screwed up the vacuum.... A very simple fix...

 

Hopefully very simple for you too..

 

Hope this helps :D

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Hmm, I would need to check on that too. I clearly remember how this problem started though. I driving down the road at abotu 60 and then I felt a slight change that came from the pathy, the revs went up and down abit, but didn't think much of it at the time.

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:idea:

May be this is the problem that we are both having. Let me see if my symptons are almost the same as swimmers. Takes a bit to shift to second. When speeding, it's taking longer than normal to shift, but it also shifts hard, like it is pulling the pathy back a bit. When braking and getting close to the 1200 rpm, it upshifts and downshifts a bit, with out pressing the gas. Now, when it takes a while for it to shift out of second to third, it's almost like it's got the e-power button on, but with out the higher rpm shift points. Before I had this problem, for example, I would be driving about 50, at about 2500 rpms, I would depress the accelrator and the rpms would go to about 3000, until the tranny decided to downshift or I pressed on the accelerator again. This is not happening anymore. May be this should be a next culprit. I'm still having this porblem. I actually got a refund on the TPS since I ruled out the possibility of being that. Next thing to check should be the speed sensor, but i have no idea on where to look for it.

The 2500 to 3000 RPM "shift" you are experiencing is normal. That's the torque converter unlocking. In 3rd and 4th gear, the torque converter locking and unlocking is especially noticable, but nothing to worry about.

 

If it's locking and unlocking repeatedly (or rapidly) in 3rd (like going up a steep grade on the freeway), simply push the "O/D OFF" button on your transmission shifter. This will hold the vehicle in 3rd and lock the torque converter.

 

Because of the lack of power in the VG30E compared to the curb weight of the Pathfinder, even us automatic transmission owners need to be proactive with the Drive/Overdrive Shifting...

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alright... just another question from the newbie but how would a manual swap turn out? is it stupid to do it or could it turn out better?

Better than what? Some of us don't like the way the Nissan manual feels to drive (or be a passenger in) and some of us wouldn't ever consider an automatic in anything we drive.

 

I fall into the category of I wouldn't ever consider a manual in anything I drive.

 

A manual swap is a lot of work, but a k9sar says, quite a few folks onthis board have done it.

 

If all you're looking for is a bulletproof solution, you can make the automatic bulletproof with a lot less effort than a manual swap.

Edited by Eli
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cool... im just a person who loves manual trannys. so with the problem, the thought just popped into my head. but you mentioned how they feel... is it jerky or what?

Jerky's a good word. IMHO, they are too jerky when the throttle is let up before a shift, but I suppose some of that could be corrected with stiffer front shocks.

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Or by learning how to shift....

 

Not trying to be mean or anything, but I have found the Nissan 5 speed to be about the easiest there is to shift smoothly. And they are pert near bulletproof. My '87 has 210K on the original clutch...

 

I'm sure it is a job, but it is doable. Heck, my nephew and I swapped a 5-speed into his VW Eurovan. Converting THAT pig from auto to 5 speed was a pain, but absolutely worth it.

 

(in case you can't tell, I'm from the "I hate automatics" club. Actually, it's more like the "I hate the reliability of high mileage automatics" club). I also obviously do not live in a city and have to commute through stop and go traffic. If I did, I would be more tolerant of them and their costs.

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Sorry, I meant to add that it's also very jerky when going from throttle to coasting, but of course you're right about shifting techniques affecting shift jerkyness. P...

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