02 Xterra with Crazy Overdrive - Nissan Xterra Forum
Reply
 
Thread Tools Display Modes
post #1 of 13 Old 11-23-2012, 06:39 PM Thread Starter
eric_koski
Noob
 
Join Date: Aug 2012
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
2002 Xterra
eric_koski is on a distinguished road
02 Xterra with Crazy Overdrive

02 xterra auto, 110k miles. Recent problem with Overdrive. On the hiway after driving for 25 minutes or more the trans will downshift out of OD and then upshift back. This happens repeatedly,. You can watch the tach drop and rise as it occurs. I have checked for codes (none) and checked the trans self diag. (all blinks are the same). Fluid has been changed with no help. This only occurs when the truck gets HOT/NEVER COLD. I`m thinking maybe a sticky solenoid? Any ideas?? Next step is to drop the pan. Anybody have a good source for a solenoid pack?
eric_koski is offline  
2002 Xterra
Sponsored Links
Advertisement
 
post #2 of 13 Old 11-27-2012, 11:55 AM Thread Starter
eric_koski
Noob
 
Join Date: Aug 2012
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
2002 Xterra
eric_koski is on a distinguished road
02 Xterra with Crazy Overdrive

New wrinkle....CEL with PO744 TC Lockup
eric_koski is offline  
2002 Xterra
post #3 of 13 Old 11-27-2012, 06:50 PM
ShiftingSkys
Phreak
 
ShiftingSkys's Avatar
 
Join Date: Aug 2010
Location: Raleigh
Posts: 1,751
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
2002 Xterra
ShiftingSkys will become famous soon enough
The P0744 is set when the A/T cannot perform lock-up even if electrical circuit is good. engine-codes.com

The Torque Converter Clutch (TCC) solenoid valve is activated, with the gear in Drive, by the Transmission Control Module (TCM) in response to signals sent from the vehicle speed and the Engine Control Module (ECM).
Lock-up piston operation will then be controlled. When the torque converter clutch solenoid valve is activated, the torque converter lockup clutch will engage creating a 1 to 1 RPM ratio between the transmission input shaft and the rotational speed of the torque converter.

Lock-up operation, however, is prohibited when A/T fluid temperature is too low.

When the accelerator pedal is depressed (less than 2/8) in lock-up condition, the engine speed should not change abruptly. If there is a big jump in engine speed, there is no lock-up.

When the a transmission solenoid is working intermittent, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is very dirty, it is recommend changing the transmission fluid and if possible removing the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a transmission mechanical failure and that the transmission will need to be rebuilt or replaced.

Read more: http://engine-codes.com/p0744_infini...#ixzz2DTi9zK00

Possible causes
- Faulty torque converter clutch solenoid valve
- Torque converter clutch solenoid valve harness or connectors
- Torque converter clutch solenoid valve circuit is open or shorted
- Low transmission fluid level
- Dirty transmission fluid

2002 Nissan Xterra

Lifted and Ready to Roll!

Build Thread-http://www.clubxterra.org/forums/showthread.php?t=38877

Last edited by ShiftingSkys; 11-27-2012 at 06:55 PM.
ShiftingSkys is offline  
2002 Xterra
post #4 of 13 Old 11-27-2012, 08:53 PM Thread Starter
eric_koski
Noob
 
Join Date: Aug 2012
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
2002 Xterra
eric_koski is on a distinguished road
Looks like I gotta drop the pan. Thanks for the info.
Any source for solenoids besides the dealer? Big bucks from them.
eric_koski is offline  
2002 Xterra
post #5 of 13 Old 11-27-2012, 09:04 PM
xtacular
Spaz
 
xtacular's Avatar
 
Join Date: May 2010
Location: Washington
Posts: 5,569
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 35 Post(s)
2002 Xterra
xtacular Totally Rocks xtacular Totally Rocks xtacular Totally Rocks xtacular Totally Rocks
Try rock auto and courtesy parts

2002 Super Black 5 Speed 4x4
Lift/Suspension: AC Shackles and UCAs, Bilsteins, 2" BL
Armor: front ARB Bumper, rear Skid Row bumper
Steering: Bandit 4x4 idler arm bushings, AC HD TRAs, Calmini IAB; Moog TREs and 555 centerlink
Wheels/Tires: 33x12.5x15 Goodyear Duratracs on desert runners
Performance: K&N intake, Doug Thorley headers, Magnaflow muffler
Electronics: backup camera, Pioneer Bluetooth head unit, JBL 770w amp, JL Audio 12" W0, front Infinity Reference components, rear Sony Xplods
xtacular is offline  
2002 Xterra
post #6 of 13 Old 02-21-2014, 02:14 PM
DieselXterra
Veteran
 
Join Date: Feb 2011
Location: New York/Florida/Costa Rica/California
Posts: 270
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
2002 Xterra
DieselXterra is on a distinguished road
Hello,

Go to Amazon, look up up KREX GRAPHITE OIL ADDITiVE

Use this in your engine and add some to your differential after you fixed your tranny issue.

Thank me later.
DieselXterra is offline  
2002 Xterra
post #7 of 13 Old 02-21-2014, 02:18 PM
DieselXterra
Veteran
 
Join Date: Feb 2011
Location: New York/Florida/Costa Rica/California
Posts: 270
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
2002 Xterra
DieselXterra is on a distinguished road
After your tranny issue...

After your tranny issue...

Get a motor oil change for your truck and add KREX GRAPHITE OIL ADDITIVE

You can find it on AMAZON.COM

It will run about 60 bucks for 6.

You can also ad some to your rear differential.

It is liquid graphite.

Thank me later..

XTERRA OWNER of 4 different Xterras.

NOTHING IS MORE DANGEROUS TO THE ADVENTUROUS SPIRIT OF A MAN THAN A SECURE FUTURE
DieselXterra is offline  
2002 Xterra
post #8 of 13 Old 06-17-2015, 03:24 PM
sam.lloyd
Noob
 
Join Date: Jun 2015
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
sam.lloyd is on a distinguished road
Hi there, I have a related issue: 2004 Xterra SC. Purchased last fall and driven very little since then (son's vehicle, driven to high school and soccer practice and not much more). Transmission started slipping about 3 weeks ago. It was throwing a TCC intermittent solenoid code. After resetting the code it seemed to drive normal on a 3-mile trip to the store. Yes! On the drive home it seemed to be slipping again. Noooo!

Here's the relevant info:
1. Vehicle has 133K on it, and as far as I know the previous owner didn't maintain properly. So probably no tranny service.

2. Drained pan and replaced ~1 gallon of fluid. Fluid was dark, but not sure I'd call it black. More like brown. After replacing 1G it was a lighter brown. Burt odor? IDK. Not enough experience to know if it's really burnt-smelling. Also added a pint of Trans-X.
No improvement in slipping problem.

3. Drained pan, dropped pan, replaced filter, checked TCC solenoid (14.4 Ohms, and it seemed to work fine when I applied 12V; nice solid click, with no indication of dragging or sticking). Cleaned magnet (I had never seen one before, and it looked like the underside of a mushroom, and felt squishy, like a sponge! I realized it was metal filings when some of the goop I pulled out stuck to a different magnet. There were no big pieces, just lots of tiny strands held together in a big blob by the fluid and magnetism) Installed new filter, reinstalled pan, refilled with new ATF. No improvement.

4. Seemingly important and telling info: The slippage occurs in D, but not in 1 or 2. In other words, in Drive it starts to slip in 2nd gear after reaching ~3k RPM, but if I drop it into 2 there's no slippage. This would seem to point to a problem with the TCM or ECM or harness.

Any thoughts? The transmission folks I've talked to seem to dismiss the weird behavior in #4 , but nobody has offered an explanation. Everybody just tells me it needs an overhaul/rebuild, and maybe it does, but is it possible it just needs a TCM, or maybe there's an issue with the harness?

Thanks!
Sam
sam.lloyd is offline  
post #9 of 13 Old 06-17-2015, 04:43 PM
dejablue
Moderator
 
dejablue's Avatar
 
Join Date: Sep 2008
Location: COZUMEL,MEX
Posts: 7,040
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 70 Post(s)
2002 &2003 Xterra
dejablue has a spectacular aura about them dejablue has a spectacular aura about them dejablue has a spectacular aura about them
Quote:
Originally Posted by sam.lloyd View Post
Hi there, I have a related issue: 2004 Xterra SC. Purchased last fall and driven very little since then (son's vehicle, driven to high school and soccer practice and not much more). Transmission started slipping about 3 weeks ago. It was throwing a TCC intermittent solenoid code. After resetting the code it seemed to drive normal on a 3-mile trip to the store. Yes! On the drive home it seemed to be slipping again. Noooo!

Here's the relevant info:
1. Vehicle has 133K on it, and as far as I know the previous owner didn't maintain properly. So probably no tranny service.

2. Drained pan and replaced ~1 gallon of fluid. Fluid was dark, but not sure I'd call it black. More like brown. After replacing 1G it was a lighter brown. Burt odor? IDK. Not enough experience to know if it's really burnt-smelling. Also added a pint of Trans-X.
No improvement in slipping problem.

3. Drained pan, dropped pan, replaced filter, checked TCC solenoid (14.4 Ohms, and it seemed to work fine when I applied 12V; nice solid click, with no indication of dragging or sticking). Cleaned magnet (I had never seen one before, and it looked like the underside of a mushroom, and felt squishy, like a sponge! I realized it was metal filings when some of the goop I pulled out stuck to a different magnet. There were no big pieces, just lots of tiny strands held together in a big blob by the fluid and magnetism) Installed new filter, reinstalled pan, refilled with new ATF. No improvement.

4. Seemingly important and telling info: The slippage occurs in D, but not in 1 or 2. In other words, in Drive it starts to slip in 2nd gear after reaching ~3k RPM, but if I drop it into 2 there's no slippage. This would seem to point to a problem with the TCM or ECM or harness.

Any thoughts? The transmission folks I've talked to seem to dismiss the weird behavior in #4 , but nobody has offered an explanation. Everybody just tells me it needs an overhaul/rebuild, and maybe it does, but is it possible it just needs a TCM, or maybe there's an issue with the harness?

Thanks!
Sam
The high clutch pack is probable burned out . Does it have a trailer hitch ?
The fluid should be red not brown not black .
What ever you do don't rebuild its a big can of worms and will never be right get a low mileage used.

Dennis
dejablue is online now  
2002 &2003 Xterra
post #10 of 13 Old 06-17-2015, 05:09 PM
sam.lloyd
Noob
 
Join Date: Jun 2015
Posts: 3
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
sam.lloyd is on a distinguished road
Quote:
Originally Posted by dejablue View Post
The high clutch pack is probable burned out . Does it have a trailer hitch ?
The fluid should be red not brown not black .
What ever you do don't rebuild its a big can of worms and will never be right get a low mileage used.
No, no trailer hitch. But it is the supercharged version, so it's been pushed harder than normal. And who knows how the previous college student owner drove it, but I'm guessing he didn't baby it.

Is a rebuild really that unlikely to be successful? Never had one rebuilt, so I don't have any experience, but I know a few people that have, and they didn't have any problems. Are Nissans (or Xterras, specifically) notoriously hard to rebuild, or does that apply to any automatic tranny?

Thanks,
Sam
sam.lloyd is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Nissan Xterra 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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

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


Forum Jump

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