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|99 Suburban 4L60E Tranny slip||Robert||7-5-10|
|My 99 Suburban's tranny was slipping from 2nd going into 3rd, it got to the point where it would get stuck in 2nd gear and wouldn't shift up or down until I shut the truck off for at least 5 min. I'd start it back up and the tranny would reset to 1st gear as normal adn sometimes would drive normal throughout the day. I had the tranny rebuilt but it seems to have the same problem, they even swapped it out with another and seemed to do the same thing. The check engine light turns on when it acts up.. Any Ideas what it might be??|
|Re: 99 Suburban 4L60E Tranny slip||BUBBA THE BUS TECH||7-5-10|
|If it sets the check engine light it is setting a code of some kind.|
Get it scanned and find out what the code is. Fix that first. Things like bad Throttle sensors and Bad speed sensors will cause this.