Engine/Transmission (1998.5 - 2002) NV5600 shift at idle problem

[willysrule]

I've searched and found different things on this issue... Nothing I have found is specific to my problem... .



Lately (probably about half the time) my truck has been giving me fits on getting in into 1st, reverse and very rarely 2nd…



It only happens at idle or a dead stop, letting the clutch engage and then disengaging it again doesn’t make a difference, you really have to force it sometimes





Any ideas or suggestions?



thanks in advance... :-laf

 

[Mundgyver]

This will be interesting as mine is like this also. Sometimes it just does not want to go. Hopfully there is someone that has gone through this and can provide some insite.

 

[willysrule]

I'm hoping its something simple. My list of things to do to my vehicles keeps getting longer and my amount of free time keeps getting shorter... .

 

[yogibear]

The pilot brg. is shot. My 00 got so bad I had to shut the eng. off, put it in gear, then start it up.

 

[Silver_Ram]

My 02 does it from time to time. It acts like it's in 4 wheel drive on a hard surface & binds up.



My truck does it every once in a while & it's unpredictable when it's gonna do it. I also have the limited slip rear end, so I don't know if this somehow contributes to the bind. I pump the clutch pedal a few times, & shift into 2nd, 3rd or 4th gear & then most times it seems to go right in.



I have found that my transmission starts doing it when it's time to change the fluid.



Troy

 

[CHolman]

Mine was getting hard, not real hard, but when the wife would drive it she had a really had a hard time for awhile, but I put some royal purple sycro max and it really did help. It's smooooth now.

 

[nps]

I'd change out the transmission fluid first. I'm running Red Line MTL in mine.



If that doesn't improve shifting, then it does sound like the pilot bearing may be binding, not allowing the input shaft to float free of the crank/flywheel. Spinning input shaft/stationary first gear results in hard engagement.

 

[Ereynolds72]

Sounds like the clutch isn't fully dissengaging. I know there's no comparison here but I had a jeep I had to shut off to get it into 1st gear. Once it was in, I could manage the shifting. It ended up being the clutch master cylinder. It wasn't letting the clutch travel enough to fully dissengage.

 

[Kiohio]

Must be the time of year... .

A buddy is having the same problem on his 98 5spd.

The thing is the truck only has around 40k miles on it. Could it still be the Pilot brg??

We will change fluid first tho... .



Thanks, KO

 

[nps]

The thing is the truck only has around 40k miles on it. Could it still be the Pilot brg??



Thanks, KO

Probably not bad from the factory with only 40K. But if the transmission has ever been dropped and the input shaft was allowed to hang on the pilot bearing, then yes - most definitely could be the pilot bearing.



Could also be the master/slave like Ereynolds said. Mine behaved similar when the master cyl went, but it only lasted a half day once symptoms began to show.



More than likely the fluid. I changed mine at about 40K because I was having more and more trouble getting it in gear at stop lights. The Redline plus a bottle of Lube Gard fixed it right up. Read about it here.

 

[Kiohio]

Thank you!



KO

 

[Supermod56]

Pilot bearing issues are common on these things, on mine when I put the SBC in at 80K, the stock bearing was fine. I never sit at a light in gear with the clutch in, as soon as it turns green i put it in gear, saves the pilot bearing and the throwout bearing. Several manufacturers make sealed heavy-duty pilot bearings, but you have to modify the flywheel.

Tom

 

[willysrule]

thanks everyone...



my fluid was changed about 5k ago when we put my SBC in... I'll have to ask my transmission guy about the pilot bearing issue... what's a new one run? cost wise?

 

[nps]

thanks everyone...



my fluid was changed about 5k ago when we put my SBC in... I'll have to ask my transmission guy about the pilot bearing issue... what's a new one run? cost wise?

The bearing is cheap. The killer is the fact that to change it, you may as well be putting in a new flywheel. :{

 

[maxburk]

I had this problem. Mine was the fluid in the transmission. I was going by the manual that is wrong. I replaced fluid with Amsoil and the problem disappeared.

 

[willysrule]

I had this problem. Mine was the fluid in the transmission. I was going by the manual that is wrong. I replaced fluid with Amsoil and the problem disappeared.

what type/grade or spec Amsoil?



I'll try that next,



thanks...

 

[Silver_Ram]

Amsoil Synthetic Manual Synchromesh Transmission Fluid. It has a 5W30 rating.



I have been using it for about a month or so & I like the way my transmission shifts now. My synchro's are wearing out, but I don't want to replace them just yet. I tried the Royal Synchromesh & wasn't impressed, especially when towing.

 

[NIsaacs]

How many miles are on your truck? I see you recently changed out the clutch. Did this problem start with this clutch? One thing I have noticed and have had trouble with over the years, of changing clutches, is input shaft wear. The input shaft splines will wear to match the clutch disk spline. Then when you change clutch disks they don't match, this can cause the clutch disk to not slide on the input shaft upon release. causing a slight hang up on the flywheel side. When this happens, it continues to drive the input shaft, making it difficult for the syncros to stop the transmission from turning. Sometimes this condition is made worse by aftermarket clutches that fit slightly different on the input shaft splines over the stock clutch. As in a slightly longer or shorter hub. With the 1-3/8" input shafts on the 6-spd, I don't know if this is a problem or not.





"NICK"

 

[Nightram]

I have noticed that the colder it gets out, the more stubborn it gets to shift. I also notice when downshifting I will catch about a 1/2 second of grinding every once in a great while in any gear.

 

[Mundgyver]

I get the occassional grinding on down shifting every once in awhile also. Everytime it has been because I have shifted too fast. If I take my time, it will does not have a problem. These are trucks afterall, not sports cars.