Engine codes without check engine light?
I believe you have more serious issues than the gov. If you don't have 1st,2nd,3rd, or rev. That means that the direct drive clutches in the tail housing are not engaged...ie( spring that holds clutch pressure is shot, and or clutches). Only a loss of third or reverse is a front clutch failure...ie, piston seals (when the fluid is cold it will work due to thicker viscosity helping it to maintain pressure.) The gov only is used to time shifts by applying more pressure to the shift valves. The kick down valve applies pressure on the opposite side of the valve to hold off shifts longer as the gas pedal is pressed harder....or force a down shift.
One thing I would have checked is the trans line pressures. I would say a rebuild is probably needed.
One thing I would have checked is the trans line pressures. I would say a rebuild is probably needed.
I really hope its not a complete rebuild. Im hoping a small investment in the governor solenoid and temp sensor can bring her back to life. I bought a cheapo code reader this morning and hooked it up and it showed a P0740 code. I dont know enough about transmissions to understand if that code is telling me I have a bad torque converter or a bad torque converter circut(sensor). If I do need a new tranny I am going to roll the dice with a junkyard transmission and put any parts I purchase into it.
Does anyone have an idea about the P0740 error code. My book says "TCC Circut Malfunction".
Administrator
Joined: Apr 2010
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From: Clayton MI
Basically it means that when the PCM is commanding TCC lockup, it isn't seeing the corresponding RPM drop it expects. Could be a wiring problem, bad TCC solenoid, or, failed torque converter.....
I bought my own error code tester this morning and it showed a P0740 code. Could the TCC solenoid be causing this? The description in the book that came with the tester says "TCC Circut Malfunction".
Thank you in advance
Thank you
Legend
Joined: Jul 2011
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From: Austin, TX
If you download the service manual form the FAQ/DIY section there is a very good section on the transmission in there. Diagnosis, repair, etc. TC, OD, Gove press sensor and solenoid are all located in the same area on the valve body.
Last edited by gdstock; Mar 18, 2012 at 11:57 AM.
Professional
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This is the reason that it is reccomended not to tow in OD. You lose the direct clutch pack. If this pack fails, the only gear you could have power in, would be OD, because that's the only time it doesn't work.
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Joined: May 2011
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You have to drop the valvebody to get to it, but I don't think it's worth the time. The only time your converter is locked up is 3rd and OD. If the clutches are slipping in the trans, and the torque converter clutch is engaged and the RPM doesn't drop ( like HeyYou said) then the computer is going to kick that code.
The computer can't reason with itself to tell you there is a mechanical malfunction, but rather the malfunction will cause codes to be set.
Now if you had all gears as normal and no lock-up in 3rd or OD, then yes, that's a good place to start before replacing the converter. The other thing is that the valvebody is the brain of the trans, and that being said,every screw and bolt has a torque value. I've seen alot of valvebody's cracked or malfunctioning from improper torqing.
The computer can't reason with itself to tell you there is a mechanical malfunction, but rather the malfunction will cause codes to be set.
Now if you had all gears as normal and no lock-up in 3rd or OD, then yes, that's a good place to start before replacing the converter. The other thing is that the valvebody is the brain of the trans, and that being said,every screw and bolt has a torque value. I've seen alot of valvebody's cracked or malfunctioning from improper torqing.
You have to drop the valvebody to get to it, but I don't think it's worth the time. The only time your converter is locked up is 3rd and OD. If the clutches are slipping in the trans, and the torque converter clutch is engaged and the RPM doesn't drop ( like HeyYou said) then the computer is going to kick that code.
The computer can't reason with itself to tell you there is a mechanical malfunction, but rather the malfunction will cause codes to be set.
Now if you had all gears as normal and no lock-up in 3rd or OD, then yes, that's a good place to start before replacing the converter. The other thing is that the valvebody is the brain of the trans, and that being said,every screw and bolt has a torque value. I've seen alot of valvebody's cracked or malfunctioning from improper torqing.
The computer can't reason with itself to tell you there is a mechanical malfunction, but rather the malfunction will cause codes to be set.
Now if you had all gears as normal and no lock-up in 3rd or OD, then yes, that's a good place to start before replacing the converter. The other thing is that the valvebody is the brain of the trans, and that being said,every screw and bolt has a torque value. I've seen alot of valvebody's cracked or malfunctioning from improper torqing.
or
http://i463.photobucket.com/albums/q.../DE180038a.jpg
Thank you in advance
