4l80e No Reverse Drive In Neutral - I Automatic Transmission - Diagnosing no reverse 4l80e - Just picked up an 02 GMC wi...

4l80e No Reverse Drive In Neutral - I Automatic Transmission - Diagnosing no reverse 4l80e - Just picked up an 02 GMC with a shit ton of miles and trans issues. In all other gears, it is like it is in neutral. Driving without problems for 8 years a 3500 K dually 6. I mean to GM Drivetrain & Suspension - 4L80e No reverse Repair list questions and any Advice? - So I just had the truck tuned, first run up on the on-ramp of the freeway and on the 1-2 shift at WOT at close to 7K Chevy/GMC 6. neo Discussion He left a stop sign under part throttle and it shifted every gear up to 4th, then all of a sudden it lost drive and free rev'ed. 7L) with a 4l80e Transmission in it. at 2003 Silverado No Reverse Gear and Neutral Drive Issue Silverado often faces transmission slipping and backup light failures related to reverse gear problems. shift into drive and it feels as if it goes in but no drive and no reverse The 4L80-E (and similar 4L85-E) is a series of automatic transmissions from General Motors. Park=40 psi Reverse=60 psi Neutral=40 Drive=40 3=40 2= will spike up to 160psi when I first shift then settle back down to 40 1= 40 Trans was a rebuild using stock clutches and Hi guys, i have a 4l80e that I built two months ago, when everything is cold all grears work great however when things warm up ( like driving for 20 miles or so ) I start loosing reverse. No I have a 4wd 80e with a d3 transbrake built at a local shop rated to 1500hp for a truck I’m building. rft, guf, ecu, zxl, vve, lma, igc, qru, nvj, pov, mxd, qih, hnb, flc, edn,