1966 Crown Coupe, 2016 200 S AWD, 1962 Lark Daytona V8.
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17,269 Posts
Welcome to Allpar. There may not be a 'ck engine' light, but there may still be fault codes stored in the TCM (transaxle control module) that may be useful here. What year is yours?
The 'ck engine' light is basically for engine (PCM) fault codes although on later cars a transaxle fault would illuminate the 'ck engine' light and post a P0700 fault code to alert the driver that a fault was stored in the TCM.
You may need more than a generic engine fault code reader or scan tool to read TCM codes.
Broken snap rings (clips) were fairly common on older vehicles and the Chrysler rebuild kits came with new ones. They didn't want us to re-use old snap rings. The 2-4 clutch reaction plate and tapered snap ring have one side up and can be mistakenly installed wrong.
No 2nd gear is likely a 2/4 or underdrive (UD) or broken hard part issue.
In D at 32 km/h (20 mph), overdrive would not be engaged yet so the 0 pressure at the port would be expected.
OD (4th gear) won't engage until ~ 72 km/h (45 mph).
In D at 48 km/h (30 mph), it would still be too slow to apply the 2/4 clutch for OD.
I am puzzled at the 24 psi as I would expect 0-2 psi to leave the clutch not applied. Perhaps there could be some internal hydraulic leakage in the input clutches assembly (like the underdrive clutch)? Residual pressure on an unapplied clutch element will cause premature clutch wear and probably limp-in mode.
This probably isn't an electrical problem and you have done well by diagnosing this with ATF pressures. I still suspect an internal hydraulic (leakage) or a mechanical issue (like a broken hard part).
There have been many updates done to the 41TE (A-604) transaxle. Many times a remanufactured unit is the best way out as updating hard parts can get into thousands of dollars.
It would be nice to know any TCM fault codes, but sadly I do think that the unit will have to come back out for disassembly.
By the way, your english is excellent.
http://diagramas.diagramasde.com/otros/Manual+de+Reparacion+para+Transmision+Automatica%20(SPIRIT).pdf
The 'ck engine' light is basically for engine (PCM) fault codes although on later cars a transaxle fault would illuminate the 'ck engine' light and post a P0700 fault code to alert the driver that a fault was stored in the TCM.
You may need more than a generic engine fault code reader or scan tool to read TCM codes.
Broken snap rings (clips) were fairly common on older vehicles and the Chrysler rebuild kits came with new ones. They didn't want us to re-use old snap rings. The 2-4 clutch reaction plate and tapered snap ring have one side up and can be mistakenly installed wrong.
No 2nd gear is likely a 2/4 or underdrive (UD) or broken hard part issue.
In D at 32 km/h (20 mph), overdrive would not be engaged yet so the 0 pressure at the port would be expected.
OD (4th gear) won't engage until ~ 72 km/h (45 mph).
In D at 48 km/h (30 mph), it would still be too slow to apply the 2/4 clutch for OD.
I am puzzled at the 24 psi as I would expect 0-2 psi to leave the clutch not applied. Perhaps there could be some internal hydraulic leakage in the input clutches assembly (like the underdrive clutch)? Residual pressure on an unapplied clutch element will cause premature clutch wear and probably limp-in mode.
This probably isn't an electrical problem and you have done well by diagnosing this with ATF pressures. I still suspect an internal hydraulic (leakage) or a mechanical issue (like a broken hard part).
There have been many updates done to the 41TE (A-604) transaxle. Many times a remanufactured unit is the best way out as updating hard parts can get into thousands of dollars.
It would be nice to know any TCM fault codes, but sadly I do think that the unit will have to come back out for disassembly.
By the way, your english is excellent.
http://diagramas.diagramasde.com/otros/Manual+de+Reparacion+para+Transmision+Automatica%20(SPIRIT).pdf