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1998 Dodge Durango 5.2L 4×4 44RE Trans
Transmission was pulled and overhauled because it lost reverse and overdrive gears. I installed a new torque converter, cooling lines and cooler along with the freshly overhauled transmission. Got everything back together and when i put it into any gear i can feel it go into gear but when i hit the throttle it barely moves…
Things i have tried:
1) lifted the back wheels to see if the drive line moved as it should… everything seemed fine.
2) Pulled the supply line at the cooler and put a piece of rubber hose on it to drain into a bucket to test for flow.. it had a pretty strong flow.
3) checked the fluid level. (fully warmed up in N after cycling the gears)
I am at a loss here, any thoughts?? i have to get this truck up and running ASAP as it is our only vehicle.. Thanks in advance for any help!
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Did you plug the solenoids back in or any other connectors?
does the shift linkage move? valve body check balls back correct?It sounds like a torque converter problem-either wrong one or defective. I agree to contact the rebuilder and pick their brain too.
The Trans is a Mopar reman. I installed it myself because the dealer wanted $1900 just to install it… with that said i did not touch any of the internals, it was all built and installed in the reman stage… all of the connectors are tight and the shift linkage is on and in the correct location… as i said with all the wheels lifted it moves in the proper direction for the range its in… even works properly in 4 wheel drive.
I did put a call into Mopar and the person claimed that sometimes in the building process the park rod gets bent and it could cause issues like this.. sounds off the wall to me and that they did not know and where throwing out answers.
Do any of the gears work? Reverse AND drive don’t work? As well as manually switching to 1 and 2?
If this is the case, then I would agree with sunset in that it definitely sounds like a torque converter problem. Either that, or the wrong fluid was installed. The fact that you can feel it go into gear tells me that the valve body fluid circuits are MOST LIKELY working correctly. Unless there is a leak in one of the accumulator seals or something that isn’t allowing the transmission to maintain proper holding pressure on the gear set. (But this would only effect ONE gear, not all of them.)
Have you tried revving the RPM’s higher and see if it will move then? It is possible you got a torque converter with a really high “Stall speed.”
[quote=”Xyius” post=70546]Do any of the gears work? Reverse AND drive don’t work? As well as manually switching to 1 and 2?
If this is the case, then I would agree with sunset in that it definitely sounds like a torque converter problem. Either that, or the wrong fluid was installed. The fact that you can feel it go into gear tells me that the valve body fluid circuits are MOST LIKELY working correctly. Unless there is a leak in one of the accumulator seals or something that isn’t allowing the transmission to maintain proper holding pressure on the gear set. (But this would only effect ONE gear, not all of them.)
Have you tried revving the RPM’s higher and see if it will move then? It is possible you got a torque converter with a really high “Stall speed.”[/quote]
All gears work, its just really weak when a load is on it…. i put all 4 wheels up on jack stands and tried driving it and all wheels spin when they should… explain stall speed a little more? i dont quite understand it.
Stall speed essentially means, “What RPM does the engine have to be at in order for power to be transferred through the drive line?” If the torque converter has a low stall speed, then a LOW RPM from the engine is sufficient to transfer power to the wheels. If the torque converter has a high stall speed, then the RPM’s must be higher in order for power to be transferred.
[quote=”Xyius” post=70551]Stall speed essentially means, “What RPM does the engine have to be at in order for power to be transferred through the drive line?” If the torque converter has a low stall speed, then a LOW RPM from the engine is sufficient to transfer power to the wheels. If the torque converter has a high stall speed, then the RPM’s must be higher in order for power to be transferred.[/quote]
if i remember correctly the guy it was ordered from claimed it was a 2000rpm stall speed and thats what dodges use…. think that might be too high?
I would call the dealer and see if they can tell you what the normal stall speed is on that truck. Then compare it to the one you bought.
But first I would see if it is actually the stall speed that is causing the problem. Does the car move when you rev it above 2000 rpm? A stall speed of 2000 means that the wheels will not move unless the RPM of the engine is at least 2000 rpm.
[quote=”Xyius” post=70554]I would call the dealer and see if they can tell you what the normal stall speed is on that truck. Then compare it to the one you bought.
But first I would see if it is actually the stall speed that is causing the problem. Does the car move when you rev it above 2000 rpm? A stall speed of 2000 means that the wheels will not move unless the RPM of the engine is at least 2000 rpm.[/quote]
Not trying to hijack the thread, but for example, my car will move when the car is idling. The engine idle speed will pull the car when it’s in gear….what up with that? How does that tie into the stall speed….this was the first thought to my mind even after listening to Eric’s explanation of stall speeds.
[quote=”B2k1977″ post=70555][quote=”Xyius” post=70554]I would call the dealer and see if they can tell you what the normal stall speed is on that truck. Then compare it to the one you bought.
But first I would see if it is actually the stall speed that is causing the problem. Does the car move when you rev it above 2000 rpm? A stall speed of 2000 means that the wheels will not move unless the RPM of the engine is at least 2000 rpm.[/quote]
Not trying to hijack the thread, but for example, my car will move when the car is idling. The engine idle speed will pull the car when it’s in gear….what up with that? How does that tie into the stall speed….this was the first thought to my mind even after listening to Eric’s explanation of stall speeds.[/quote]
The stall speed for your car is low. So low that normal idle RPM is enough to transfer power through the drive line.
[quote=”Xyius” post=70557][quote=”B2k1977″ post=70555][quote=”Xyius” post=70554]I would call the dealer and see if they can tell you what the normal stall speed is on that truck. Then compare it to the one you bought.
But first I would see if it is actually the stall speed that is causing the problem. Does the car move when you rev it above 2000 rpm? A stall speed of 2000 means that the wheels will not move unless the RPM of the engine is at least 2000 rpm.[/quote]
Not trying to hijack the thread, but for example, my car will move when the car is idling. The engine idle speed will pull the car when it’s in gear….what up with that? How does that tie into the stall speed….this was the first thought to my mind even after listening to Eric’s explanation of stall speeds.[/quote]
The stall speed for your car is low. So low that normal idle RPM is enough to transfer power through the drive line.[/quote]
Interesting. I’m guessing this is normal for consumer cars? Every automatic vehicle I’ve ever driven have done this. If I put the car in gear and it didn’t move when I just simply took my foot off the brake I would be immediately concerned.
I am certainly no expert, but I believe the only types of cars that use high stall speed converters are racing cars. This is because their peak power output is higher up in RPM’s and in order to get maximum performance they install high stall speed converters.
[quote=”Xyius” post=70561]I am certainly no expert, but I believe the only types of cars that use high stall speed converters are racing cars. This is because their peak power output is higher up in RPM’s and in order to get maximum performance they install high stall speed converters.[/quote]
Exactly. That’s why when I read that it has a 2000 rpm stall speed, my thinking is you’d really have to step on it to get it to go….?
[quote=”Xyius” post=70554]I would call the dealer and see if they can tell you what the normal stall speed is on that truck. Then compare it to the one you bought.
But first I would see if it is actually the stall speed that is causing the problem. Does the car move when you rev it above 2000 rpm? A stall speed of 2000 means that the wheels will not move unless the RPM of the engine is at least 2000 rpm.[/quote]
Well this morning i did a stall speed test per the instructions in the Factory Service Manual… With the e-brake on and my foot holding the brake petal while flooring it i can redline the tack… Reading in the FSM it says if doing that and the RPM’s exceed 2500RPM that the clutches are slipping. Being that the clutches are brand new that leads me to think that the bands are not adjusted properly… thoughts?
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