So I'm having some problems with my new 99...
 

Bought the truck last Wednesday, everything seemed fine when I bought it... thats not the case now.

Its a 99 with 230k, 5 speed, and a edge chip with 150horse injectors. Runs solid but has some flaws.

-3rd gear grinds every time I try to throw it in, unless I'm at really low rpm's, sometimes 4th too
-Power door locks dont work, I'm guessing I just have to take the switch and clean the connection
-right rear passenger door doesnt open from the inside
-I think I need a new clutch because when I drive for a long time, the clutch seems to slip...

Can anyone tell me how t ofix any of these problems? I want to mainly know if getting a new clutch will help with the grinding gears... Thanks.

My 3rd gear ground all the time when i bought it ..it was the syncros.. Can you shift into 1st or 2nd after letting out clutch and then pressing clutch to floor again? If so your clutch is disengaging ok, but you still may need a clutch if it slips under load when warm. I have heard of shift rail issues on these trans. I dont think that a clutch will fix your issues unless ALL the gears are grinding or hard shifts. Check your fuses for door locks and check for broken wires in door jams if fuses are ok. Cleaning contacts...good idea. RT rear door...Do you have a child safety lock activated??... broken internal linkages??

Yeah first and 2nd are fine, so it must be synchro's. I didnt know there were child locks on the back doors...

Change youre tranny fluid. Castrol Syntorque or Amsoil are the only fluids to use.

I had a grind in my 6 speed. Put the proper fluid in and the grind went away.

Awesome! Good to know, hopefully I can do that soon, I'm so broke its not even funny. Lol

If the door is not opening from the inside it is probably the latch cable. Mine broke and would not open from the inside. It would only open from the outside. It is imperative to change the fluid in the tranny. I was having a hard time chifting my 6 speed, I changed the fluid and it slides in and out of gear like butter now.

pull the door panel off the rear and there is a cable that attaches to the outside handle mine jumps off its position every now and again

Yeah I pulled the panel off, the backside of the latch broke off so the cable has no tension

Checked my fuses, door lock fuse is fine. I popped the boot off the door to look at the wires to see if any were cut (my ex gf's jeep had this problem) and I couldnt find any cut wires that I could see... its bugging m. Any help?

make sure both switches are connected.

If my passenger side is screwed up will that make the whole thing go bad?

I wasnt saying that changing the tranny fluid would fix it but theres a chance. If the PO had some non spec fluid in there for any amount of time, the syncros could very well be trashed. Good luck.

I'd rather try it and fail then to rebuild my whole tranny and not know if that could have fixed it...

On another note, I pulled my door lock switch apart, I know I am getting power to it because if I push down on the lock side, it blows the fuse. Do I have a short somewhere?

Yep means a short or incorrect fuse in the spot. Check for the right amperage fuse first And if its good you get to start chasing wires :tu:

Guess I'm chasing wires... It's the right fuse

Well im gonna try to switch out the switch and see if that helps. While I was messing with all this, i must have done something because now my windshield wipers only work on high and my door buzzer doesn't work anymore. Any ideas?

I think this truck is falling apart... I think it is just the switch that is making the door locks not work, because now my driver window will go down and only half the time go back up, passenger side works fine. Is that a pretty common problem?

the right oil in your trans is most important for your needle bearing on the backside of your input shaft. There are 3 very small holes through your 4th gear on your mainshaft that oils that bearing, and synthetic is the only way that it gets lubed.
Just spent $700 in parts building my nv4500. Also if 3-4 is the only place you are having trouble, it could also be a cracked shift fork. I had this one happen to me in a borg warner t-18 in a ford , and again in a 4spd saginaw out of a chevy, but is a possibility in any manual trans. if it is, sooner or later, it will only go in one gear and out of the other with ease.

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on your windows, try cleaning and lubing the roller tracks. common problem on all high mileage power windows.

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not to keep backtracking, but my buzzer doesn't work on purpose... I disabled it. I believe your wipers are also controlled by your central timer unit. it is under the dash beneath the steering column.

I got my wipers to work, all I had to do was replace my door lock fuse after it blew and they started up again. I tried to pull the door lock switch out and use electrical cleaner, nothing helped. This truck is getting irritating lol

Try double clutching 3rd if the fluid change doesn't work. 3rd grinds sometimes in my 99, but if I double clutch it; it works fine. You may have to hit the throttle after double clutching if the syncros are bad, but if you are broke you can live with it till you get some money to buy a 6spd or rebuild the 5spd. A new stock clutch is ~$200 from advance.

also try pulling the diaphram on your clutch master cylinder. Had one felt like it was slipping but when I took it out it still looked new. Traced it to the diaphram not letting the fluid back in to the resivoir all the way. worth a shot anyway.

use synchromesh trans fluid best stuff for NV4500s!!! :tu:

So new problems have started, on a good note, i messed with the switch for my Windows and somehow got the door locks to work... but only the passenger side. But while doing this I lost all power to my driver window, i don't know if its the switch or the wiring...

when my switch started to go bad it did that. i would say replace the switch or find some one that will let you try there switch to make sure its bad

Okay replaced the switch and still have the same problem, now its either the motor or wiring. Is there a relay somewhere I could check? My buddy thinks my window motor is getting wet and shorting out:argh: