nv4500 grinds going into 3rd - Dodge Cummins Diesel Forum
94-98 Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission Ect...NO ADVERTISING

 
LinkBack Thread Tools Display Modes
post #1 of 12 (permalink) Old 01-05-2012, 12:02 AM Thread Starter
Newbie
 
Join Date: Mar 2011
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
nv4500 grinds going into 3rd

I searched the treads and I think I have my problem figured out just want some opinions I just did a auto to nv4500 swap and put a new valair clutch kit and slave cylinder and filled it with factory mopar fluid about 150 miles ago and I drove the truck on Sunday which was about 45-50 degrees and it shifted flawlessly. I parked it on Sunday and got in on Wednesday which was about 11 degrees and got about 5 miles from my house and went to down shift from 4th-3rd and it grinded and little but went into gear i thought I may of not had the clutch pedal in enough but then it started grinding shifting from 2nd-3rd and will only go in if I let the rpms drop then it goes in smooth and stays in and now down shifting is impossible from 4th-3rd all the other gears 1st, 2nd,4th,5th, and reverse work fine and go in smooth would 3rd gear syncros go out just like that or is something else wrong? I also drained the transmission today and took the pto covers off and cleaned it all out and topped it off with 5 quarts instead of 4 this time to see if it would make a difference and I helped a little bit on the upshifted part but still grinds but it did not help the down shifting do u guys think itís the syncros or just the cold weather? Any tips or info would be great thanks guys


96 2500 4x4 RCLB k&n cold air intake, MBRP 4" exhaust, 4GSK, #10 fuel plate, isspro boost,egt,fuel pressure gauges, nv 4500, valair 13" clutch , 3.55 gears limited slip
96cummins12valve is offline  
Sponsored Links
Advertisement
 
post #2 of 12 (permalink) Old 01-05-2012, 02:07 AM
Diesel Head
 
Join Date: May 2011
Location: Cape Girardeau, MO
Posts: 1,700
Thanks: 119
Thanked 85 Times in 75 Posts
iTrader Score: 0 reviews
I had that problem.. new syncro and it was good.

Maxed 12mm pump, nv4500 w/ Valair DD, 35'' BFG on 3rd Gens, S300 Borg Warner, 12mm ARPs, BHAF, A-Pillar gauges and bad case of ITS .
DC9612V is offline  
post #3 of 12 (permalink) Old 01-17-2012, 08:54 AM
Cummins Fanatic
 
Join Date: Feb 2009
Location: Roswell, GA
Posts: 107
Thanks: 5
Thanked 5 Times in 4 Posts
iTrader Score: 0 reviews
check your master/slave cylinders..if they are good its a bad 3rd gear synchro. double clutch shifts until you can rebuild the trans.

1998 QCLB 12v 2500 4x4 5spd
Scotty II intake, 304 stainless 4" TBE, #10 plate FF, Isspro boost & EGT guages, 43psi
Rowingfish87 is offline  
post #4 of 12 (permalink) Old 01-18-2012, 01:47 AM
Cummins Enthusiast
 
TowMan59's Avatar
 
Join Date: Jan 2012
Location: federal way, WA
Posts: 240
Thanks: 31
Thanked 18 Times in 18 Posts
iTrader Score: 0 reviews
mine has been doing that for a while... im just double clutching it and not let my crazy woman drive it till i go fuller

97 dodge 3500 5.9 12v dually RWD 5sp no plate tickled afc daily driver/workaholic

Dodge owners for Fuller Transmissions:http://www.facebook.com/RAMforFuller
TowMan59 is offline  
post #5 of 12 (permalink) Old 01-18-2012, 03:47 AM
Newbie
 
Join Date: Dec 2011
Posts: 2
Thanks: 2
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
wheres a good place to get a rebuild kit for the nv4500?
sledheadak is offline  
post #6 of 12 (permalink) Old 01-18-2012, 04:19 AM
Diesel Head
 
Join Date: Nov 2010
Location: chstr cnty pa
Posts: 1,229
Thanks: 831
Thanked 930 Times in 685 Posts
iTrader Score: 0 reviews
just grind it till you find it!

mike
95 fuelplateMIA
itspaid4 is offline  
post #7 of 12 (permalink) Old 12-02-2012, 09:52 AM
Cummins Fan
 
99cumminsmoke's Avatar
 
Join Date: Jul 2012
Location: ohio
Posts: 95
Thanks: 3
Thanked 2 Times in 2 Posts
iTrader Score: 0 reviews
What did this cost to fix mine is doing the same thing. Grinds just going into 3rd at higher rpms.

99,2500,eclb,nv4500,5 inch straight mbrp,s&b cold air,EJ w/a,AIRDOG 150,150 injectors,sb dd,ARP,188/220 cam, super b special,cobra 29 lx,lots of lights,leveled,eagle 186 rims,cowl hood.
99cumminsmoke is offline  
post #8 of 12 (permalink) Old 12-02-2012, 10:11 AM
Cummins Nut
 
xcountryguy04x's Avatar
 
Join Date: Jul 2009
Location: West Virginia
Posts: 417
Thanks: 28
Thanked 32 Times in 31 Posts
iTrader Score: 1 reviews
east coast gear supply

2007 Ram 2500 QCLB, 5.9, Billet everything 48re, HTS valve body, ATS 5 Star, Fass150, ATS Dual Fuelers, ARP 625, ARP mains, Hamilton 103#, BMS 100's, 362/475, EFI Live, Edge Insight CTS
xcountryguy04x is offline  
post #9 of 12 (permalink) Old 12-02-2012, 02:51 PM
Cummins Fanatic
 
catmike's Avatar
 
Join Date: May 2010
Location: san diego, CA
Posts: 173
Thanks: 3
Thanked 8 Times in 8 Posts
iTrader Score: 0 reviews
mine does the same i just shift easier into third till i can get it fixed

97 3500 ext cab 4x4, nv4500, banks power pack
catmike is offline  
post #10 of 12 (permalink) Old 12-02-2012, 08:00 PM
Newbie
 
Join Date: Sep 2012
Posts: 1
Thanks: 1
Thanked 0 Times in 0 Posts
iTrader Score: 0 reviews
Lol mine does too.. Its worse when trying to shift quicker though. I just shift from 2nd to 3rd slow and easy like a big rig now
1994cumminshp is offline  
post #11 of 12 (permalink) Old 12-03-2012, 01:33 AM
Newbie
 
Join Date: Apr 2012
Posts: 47
Thanks: 0
Thanked 1 Time in 1 Post
iTrader Score: 0 reviews
mine is the exact same way if i hold it and 2100 for a second or 2 and then let off it will slide right in but if i just shift normally it grinds going in on the up shift hoped it was a clutch issue but just installed a valair dual disc yesterday and no change been doint it for over 12,000 mikes and hasnt gotten worse so im not gonna worry about it

96 2500 4x4 nv4500 5 inch
No smoke yet is offline  
post #12 of 12 (permalink) Old 12-03-2012, 06:57 PM
Newbie
 
Join Date: Nov 2012
Posts: 24
Thanks: 0
Thanked 1 Time in 1 Post
iTrader Score: 0 reviews
My truck was like this when I got it... found a NV4500 for a good price (because it had the same issue), put a 3rd gear syncro, put 5th gear nut fix on it, went through the rest of it (looked good), and swapped it... then fixed the one out of my truck & sold it.

not hard to do, but there are some specific tools you'll need.

seems common enough that I now double-clutch going into 3rd just to keep from wearing it out.

1998 QC 12V NV4500 4x4 LB w/ CM flatbed, #10 plate, timing 16deg, Timbren load boosters.
Lunyfringe is offline  
Sponsored Links
Advertisement
 
Closed Thread
Gear in this thread - Powered by O'Reilly Auto Parts

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Dodge Cummins Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome