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Old Feb 13, 2007 | 02:38 PM
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Default lock up question
I have a 3500 TCI torque converter and just recently it hasn't been locking when in 4th gear. Is my tranny about to go? How can I fix this?
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Old Feb 13, 2007 | 04:20 PM
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well first you need to determine if the lockup in being enabled, do you have any codes ?
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Old Feb 13, 2007 | 04:34 PM
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I have the same problem in my roomate's car. No code but the SES light flashes when it should be in lock up. I reset the DTC with the diablo while driving and the light stops flashing and it goes into lock up. 10 sec later its unlocked again. Does the same thing everytime.
Sorry if I'm hijacking.
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Old Feb 15, 2007 | 10:34 AM
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No I don't get any codes at all.
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Old Feb 15, 2007 | 12:18 PM
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flashing ses and no lockup is generally engine missfire and may not set a code
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Old Feb 15, 2007 | 04:17 PM
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I don't get a flashing ses light either. The engine runs great, but its just not locking up.
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Old Feb 18, 2007 | 12:04 PM
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?????????????
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Old Feb 18, 2007 | 12:55 PM
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Originally Posted by performabuilt
flashing ses and no lockup is generally engine missfire and may not set a code
Like he said, "normally" this is from the random misfire getting triggered. Happens all the time to cars with stalls & cams. If you have a tuner (not a Predator) you can go in & set ALL of the cells to 32767 in the Eng Diagnostic area (on HP Tuner).
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Old Feb 19, 2007 | 10:13 AM
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I had the same problem. Junk the TCI converter it is the problem. Trans is probably fine but definatly change the converter. They are having a HUGE problem with this.
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Old Feb 23, 2007 | 07:43 PM
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I finally got an ses light. I got p1870. But right now I'm not worried about the tranny I need to get the front end fixed cuz a cop decided to cut me off and turn and just stop in the middle of the road to get me to pull over.
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Old Feb 23, 2007 | 08:44 PM
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I was having this problem..Think we got the bugs worked out now..We raised the mis-fire codes & it stayed locked, then blew the trans after 1400 miles on a new rebuild..Runs great now....I believe I just got a bad trans..Try raising the mis-fire codes & go from there.
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Old Mar 9, 2007 | 12:50 PM
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i just got that code p1870 on my way home from school. My converter was not locking up in forth either. By the time I was home the converter broke and now i need to get it rebuilt. ohh btw Yank tt 3000.
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Old Mar 9, 2007 | 01:24 PM
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1870 Happens when the converter is comanded on and this does not happen , or when its comanded on in fourth gear and excessice converter clutch slip is detected,
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