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I have a 90 nissan hardbody that has issues with going into 4th gear and staying in. Anyone else have that issue?

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4th gear disengagement is a result of misalignment of the shaft as 4 th gear is a direct connection of the input and out put shafts and is not in itself a gear. This misalignment can be from spigot bearing in the input shaft failure, rear main bearing failure or extension housing bush that the tail shaft runs in being worn and allowing the output shaft to move around. Check for obstruction around the gear lever under the rubber in the cab. Check that the gear box is firmly mounted to the bell housing and is not loose

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I have a 90 hardbody that has issues with going and staying in 4th gear


your car can be in a limping mode ....first thing to do is to scan it and let me know what codes you have there ( it is not for sure you have a problem with a transmission it is the computer keep it in that gear so u can take it to mechanic )

May 14, 2014 | Cars & Trucks

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I have 89 nissan hardbody 4x4 SE...can i use an older or new model to get the parts i need when the 89 is not available


Well I know the blinkers won't fit from 90-97 cuz they are more wider and other than that you change anything from 86-97

Jul 12, 2011 | 1989 Nissan Hardbody King

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Why won't a 1995 nissan pathfinder shift into third gear


Does it stay in second or does it make the shift and go to neutral or first?

Jan 22, 2011 | 1995 Nissan Pathfinder

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Cant get 1st gear. 2nd gear nosiey and crunches, 3rd 4th 5th work but wine alot, reverse works fine. reverse lights stay on when driving. car is a mitsubishi gto twin turbo AWD 1991 plate.


Sorry but it sounds like it is trassmission time. you see the 3-5 gears work on another ration thatn 1& second they are on one shaft. the reverse is off in another world. sounds like one of the rods go stuck this is why the reverse lights stay on...

Hold your breath. It will be expensive but then on a manual I would see if the repair shop will find a used tranny. for 1/2 the cost..

Aug 03, 2009 | Mitsubishi 3000GT Cars & Trucks

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1989 nissan pathfinder transmission issure


time for a new/rebuilt computer for your 1 gear issue sounds like a few stripped gears or synchronization issue in the transmission you need to take your truck to a transmission repair shop get the sensor checked and sync bar checked for any broken pieces and metal shavings may also need to replace you slave cylinder make sure it goes in and out have someone sit in car and press clutch in you get under the front and look before clutch assembly for little black bar that is going in and out

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1 Answer

1990 nissan hardbody only shifts into 4th and rev gear no other gears, the shift lever moves to the other gears but but truck will not move


Injt: From your description, it sounds serious. If you are describing a Nissan 5 speed transmission, here would be my best guess as to what has occurred. Prior to near total self destruction, these symptoms will show up when counter gear bearings have failed.
At first the transmission will just seem a little noisy, but you probably might not notice that the noise is not present in 4th.
As the bearings deteriorates, the countergear will slowly start dropping and the gears will no longer be running properly aligned.
The noise at that point would be quite obvious. You would hear it in all gears but 4th. With the car at a standstill in neutral with it running and the clutch pedal released to where the transmission is turning, it would sound like a bucket of rocks loose, rattling in the tunnel area of the car. When you depress the clutch in, the noise would disappear. The reason you could run it in 4th is because it is the only gear in which the input shaft and output shaft are locked solid with no relationship to the counter gear. The truck/car can be driven in 4th for this reason. (It doesn't need the counter gear)
Reverse gear is a large gear located at the very center of the transmission next to the Steel center section which you would see sandwiched between the front casing and the tail housing. It is not much more than 1"" thick. Because Reverse is right at that location, even though it does need the counter gear to transfer power, it is the only gear in the transmission which is "SPUR" cut and not helical cut. This design gives it a distinct advantage to operate in a misaligned state with greater spacing. It will still make quite a racket in reverse, but it will move. I am 99% sure that this is your problem. Should this be the case, the transmission has been run far too long to consider repairing. It would probably be scrap metal inside. Find a used one or get a re manufactured one.
I have found that the synthetic gear oils have worked well in our Nissan 300Z race cars we use for road racing. They have basically the same transmission. I am partial to Amsoil and Redline. Both have performed beyond expectations on the track.
I hope I have answered you question.

Mar 20, 2009 | 1989 Nissan Hardbody King

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