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92 lumina 3.1 auto 4t60 trns pops out at stop


matt9207

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Ok so my car decides to "pop" out of gear when I come to a stop. There's no slippage of any kind while driving just coming to a stop. I have to kick it up to neutral and back down to drive and I feel it go into gear like normal and can drive without incident until I stop again. I've replaced the modulator and trans filter. Do you think it can be line pressure not high enough or just internal damage? Like I said above, there is no slipping when the car is driving. Just when I make a complete stop. Also, there are times it won't do it at all I can drive all day without incident. Any help would be great. Thanks in advance.

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Internal leakage in the valve body. Try driving in 3 rather in OD and I bet the symptoms do not occur. A bottle of TransX fixes this every time after about 15 miles of driving. I've seen this a handful of times on the 4t60 and always had favorable results. A Trans shop will try to sell you a rebuild in a second.

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  • 3 weeks later...

TransX worked great when I put it in the trans. Made it to Florida and back 1500 mile round trip. Also a couple weeks after getting back but recently the exact same symptoms have returned. If anyone can help on what I should do would be greatly appreciated.

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