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View Full Version : trans slipping ?



ytry
May 22nd, 2007, 11:41 AM
Ok guys here is a good one, I have a aftermarket trans from mad dog transmission 4L80e. I was spinning the tires going in circles (cookies) and done 3. then got on the road and headed home and i hear a clunk and it felt as if something was dragging. I thought maybe i had hit the line lock. But not that. Now My trans seems to slip when getting on it . Is there a pid I can scan to see what is going on? I noticed that when shifting into 2nd and 3rd it is sloppy and slushy.. that has been going on for about a week.. it used to shift firm in all gears and now the 1st to 2nd is good but all the others are sloppy.. any info you can give me would be helpful.

joecar
May 22nd, 2007, 12:38 PM
4L80E has input (after TC) and output (after geartrain) speed sensors:
GM.TIS
GM.TOS