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#1
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Help with transmission code
Thanks Dave |
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#2
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Nobody has any info? Paging Phil....
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#3
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What a your fill times, etc.
Maybe post pics of your NT-510 screen in live data... Rrrphil stays pretty busy from what I understand but he does pop in, just not daily Sent from my SM-A730F using Tapatalk
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"When the Team Chief said.... You're trapped in a hole with nothing but a goat and a slinky, what do you do? Stubby said, I'm not sure but it won't end well for the goat...." ~(Overheard) Last day, Phase 3, Q Course |
#4
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Quote:
I have the Nt520, which I think is the same, what data should I be looking for and what should I post? I have a second transmission that I am going to take down to a local repair shop and have them rebuild. I think I will rebuild the valve body out of it myself. I suppose the first thing to do is pull the pan and see if the TCC solenoid is even clicking. I have seen a couple different versions, some say PWM solenoid and some just say clutch solenoid, whats the difference and what does my transmission(s) have? |
#5
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Is your transmission a 5-speed (ZF 5HP24) or a 6-speed (ZF 6HP26)?
Phil |
#6
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zf 5hp24 remanufactured approx. 20k ago, car was wrecked and pulled, I acquired the trans, put new seals, filter, TC and fluid and installed in my 03. I do believe that it came from an 01 or 02 though..
Thanks Dave |
#7
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Certainly, the solenoid would be an easy thing to check by substitution. I would just swap it with one of its neighbours with a black cap (labelled A or B or C in the photo) and see if the problem moves with it.
You could also check the integrity of the solenoid wiring by measuring the resistance across pins 7 and 21 at the ECU plug and checking that you get around 6 Ohms. If you let me know the serial number of your transmission, I can tell you its date of manufacture. Phil |
#8
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I bought a new solenoid, it wasn't that expensive so I got a new one just in case. I will get the serial numbers for the transmission. What are the odds its a solenoid, I was under the impression that the solenoids going bad in these transmissions were rare. Could it be the valve body, don't the solenoids activate springs and stuff??
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#9
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Solenoid issues with the 5HP24 are certainly much rarer than with the 6HP26, but they aren’t unheard of. The torque converter lock-up clutch hydraulic circuit is quite simple, with only two valves responsible for its operation, both housed in the lower front valve block
(The highlighted damper is for the EDS4 solenoid which controls the clutch. All the proportional solenoids have a damper to prevent overshoot/oscillation) The only seals which could give rise to issues with the LUC are the two scarf-jointed ones on the input shaft The other possibility is a problem within the torque converter itself, but you would hope this was unlikely if it’s relatively new By far the best way of diagnosing LUC issues (without going to the expense of throwing new parts at it) is by using diagnostics to determine if the LUC solenoid signal corresponds with the speed ratio across the clutch Does your diagnostic tool have the capability of simultaneously recording the engine and input speed signals together with the EDS4 current, at a reasonable capture rate (>1Hz)? Phil |
#10
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hey Phil. I have a foxwell nt520. I know it will record live data, however I do not know if it will do what your asking. Would you have any idea if it does? The torque converter was brand new when installing this transmission, I would hope that its not the problem.
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