Weird Transmission ...
Thread Starter
|
New User
Joined: Feb 2005
Posts: 8
Likes: 0
From: Laramie, Wy
Weird Transmission ...
So I've got this '94 exploder ... V-6 ... auto ... almost 3 years ago I put a re-manufactured tranny into it from Hanser's in Billings. Never had a problem with it. I recently moved from Missoula to Laramie and on the trip down the transmission seemed to "downshift" and the RPM's were up about 500. Everything worked and shifted fine ... until yesterday AM. Took the girlfriend out for breakfast and when I went to leave I put it into OD gear and it acts like it's slipping and won't move ... I shifted into regular drive and no problem. It works fine. But if you shift into OD after moving the car ... it just slips back to nothing. Oil warm is just below the hash marks on the dipstick and doesn't smell burn't. Anybody have any idea what is happening here ?
Thread Starter
|
New User
Joined: Feb 2005
Posts: 8
Likes: 0
From: Laramie, Wy
Carl here ... I've been reading any related posts about transmissions this afternoon and evening. So far I have learned that maybe when driving down to Laramie and the "downshift" happened that maybe it was an unlocking of the torqe convertor? Maybe since the RPM's have been about 500 RPM higher this could be the case ? What would be the next step to check ? Why would this tranny work in D and not (D) ? Does anybody have anything to say ?
Former ******
Joined: Nov 2004
Posts: 4,901
Likes: 2
From: Salt Lake City, Utah
You say the fluid is just below the hashmarks? My stick doesn't have hashmarks but rather two dots, but shouldn't the fluid be in the hashmarked area? Low fluid can cause the symptoms you are experiencing. Replace the fluid, replace the filter, and refill to the proper level and see if that doesn't improve things. 500 rpms higher does sound like an unlocked torque converter. Also if the fluid is in fact low, check the transmission modulator, the diaphragm may have ruptured.
Thread Starter
|
New User
Joined: Feb 2005
Posts: 8
Likes: 0
From: Laramie, Wy
Thanks Bear River ... after looking at many of the posts I tried to e-mail you but couldn't ... My 2 dots are just below the hash marks on my stick. I'm going to clean the mass air sensor this AM and then plan on changing the filter and fluid as you describe to many people ... "the soft flush". What would I do to get the torque to lock as it always is running higher RPM in 4th (OD). I can't immagine the tranny is shot as it only has 36,200 (just out of warrenty) miles. I had forgotten about the modulator ... used to be a common cure for tranny problems in the "old Days" of my mechanic life. I'll check that also ... I'll post how this goes ...
Cargo Master
Joined: Aug 2003
Posts: 3,263
Likes: 92
From: BC Canada
You may have lost the OD band, the Tang has a habit of coming off.
Seem to remember (been a long time and I am getting old) that it can be accessed through the tailstock, (no need to drop tranny, just T/C).
Seem to remember (been a long time and I am getting old) that it can be accessed through the tailstock, (no need to drop tranny, just T/C).
Thread Starter
|
New User
Joined: Feb 2005
Posts: 8
Likes: 0
From: Laramie, Wy
that may be why it runs higher rpm and seemed to shift fine ... any Idea why it won't move in (D) shifter select but does just fine in D ?? I'n doing the Mass Air right now ... came in to warm up. It's still winter at 7,200ft and no heated garage. Found the air filter cover off from the last Oil change ... maybe that could be a problem ??? I looked quick for the Vac Modulator before comming in to warm ... where is it located ?
Cargo Master
Joined: Aug 2003
Posts: 3,263
Likes: 92
From: BC Canada
Originally Posted by carl boehm
I looked quick for the Vac Modulator before comming in to warm ... where is it located ?
Note: if you pull the modulator, do not loss the pin, you will need it for the replacement.
Trending Topics
Thread Starter
|
New User
Joined: Feb 2005
Posts: 8
Likes: 0
From: Laramie, Wy
... Well I'm here to report ... I did a cleaning on the Mass Air Sensor, put the new Air cleaner in and got it bolted down tight topped off the fluid. I couldn't get to the vac Modulator so that will wait until it's warmer .. or I notice a loss of fluid. Truck still won't move in (D) but if I start in D, let it get to 3rd gear and then shift to (D) it will stay. But if it kicks or drops to 2nd it slips in (D) so I must drop it into D to continue. I didn't get to the freeway yet to see where my RPM's are yet. Thought I'd drive it a couple days to make sure it will still move and won't leave me stranded before I try that. I'd still like to hear from anyone with experience or solutions ... Thanks
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Thread Starter
|
New User
Joined: Feb 2005
Posts: 8
Likes: 0
From: Laramie, Wy
Ok so today I was Brave and Jumped onto the freeway for the drive to work ... Still no go in (D) but D was fine. After getting up to about 50 I shifted the lever to (D) and away we went ... my RPM'S are even back to Normal now. On the way back home tonite ... same thing. Why won't it go 1st gear in one drive selector but 1st gear works just fine in the other drive selector ?????????
Former ******
Joined: Nov 2004
Posts: 4,901
Likes: 2
From: Salt Lake City, Utah
I agree, there is probably an internal fluid leak in the valve body. Mine had a rare problem where the fluid would leak from the 1st gear circuit into the overdrive and engaged the overdrive gear on top of 1st. Made it feel almost as though it was starting out in 2nd. In drive everything was normal because the overdrive circuit was disabled.
Likewise you can get other strange behaviors when the valve body is worn. You can try a pressure boost valve. It can sometimes resolve some shift and engagement problems. Without more troubleshooting its hard to say what might be wrong. But you will probably end up rebuilding or replacing the valve body.
Likewise you can get other strange behaviors when the valve body is worn. You can try a pressure boost valve. It can sometimes resolve some shift and engagement problems. Without more troubleshooting its hard to say what might be wrong. But you will probably end up rebuilding or replacing the valve body.
Thread Starter
|
New User
Joined: Feb 2005
Posts: 8
Likes: 0
From: Laramie, Wy
Thanks Guy's ... it's starting to make some sense althought Mine doesn't move at all in OD gear but I can see what you are talking about. Do you think that it's worth doing an oil and filter change before tearing into the Valve Body or maybe take it to get tested 1st. I'm afraid I will get a standard "needs a rebuild" answer. What if I change oil and filter and take my chances that will do the trick? I've seen thread's about checking the valve body for warpage. Lots of directions where to go and I really don't have the bucks to mess with any of it right now. Again thanks for the comments ...
Laughing Gas
Joined: Jan 2005
Posts: 1,055
Likes: 3
From: Magnolia, TX
Carl,
It's not going to cost you much at all to pull the valve body yourself and look for some obvious issues. Just a day of your time.
There are plenty of threads (and a sticky) on the valve body removal (and it's upgrade).
Give it a shot.
CMOS
It's not going to cost you much at all to pull the valve body yourself and look for some obvious issues. Just a day of your time.
There are plenty of threads (and a sticky) on the valve body removal (and it's upgrade).
Give it a shot.
CMOS
Thread
Thread Starter
Forum
Replies
Last Post
jpatt504
1999 - 2003 7.3L Power Stroke Diesel
2
Feb 27, 2017 08:37 PM
myakkacracka
Clutch, Transmission, Differential, Axle & Transfer Case
13
Jun 16, 2016 11:33 AM
cutmoney
Clutch, Transmission, Differential, Axle & Transfer Case
1
Aug 3, 2015 07:16 PM
