Feb 10, 2017 · The control system is the same for all 4l80e's with 1 exception. 91-93 4l80e's used a different pressure control solenoid that required a clean8ng cycle every 10 seconds where …

Feb 3, 2022 · Hello! I have a trans issue that is really throwing me for a loop. Hoping to get some help from anyone with a good knowledge base on the 4L80. I have a 1995 silverado w/ 6.5 …

Dec 11, 2008 · My opinion is the 4l80 is a good tranny for normal use of a truck. just take care of it, get a temp gauge, change fluid. unless your hot-shotting all the time with heavy loads then …

Jul 11, 2009 · Hey gents, been searching around and cant find any info readily available, here, or elsewhere. Anyone added a temp gauge for their 4L80E, where did you put the sender? Dont …

Nov 15, 2009 · This should maybe have been posted in the tranny section,but traffic seems rather slow there. Are both in and output speed sensors the same on a 4L80? This is on a 92 GMC …

Jan 28, 2014 · 91-93 used old style wiring harness, and a different valve body due to a different lockup frequency and eliminiated teh PWM cleaning cycle for 94. 94 is a one year only trans in …

Nov 12, 2011 · Is there any difference between a 2wd and 4wd 4L80E from the same year? This may be a dumb question but I have not pulled these before. It would be awesome if you can …

Nov 25, 2013 · Ive noticed in the morning when im leaving it feels like 1st is slipping. Reverse is fine but when i put it in drive and take off it seems like the truck is so hard to move and im on …

Mar 25, 2009 · Truck has had this problem around 4 years, learned to lift foot slightly just before shift point - now gotta relearn how to drive it! Background: changed wheel cylinders and …

Jul 29, 2015 · What I'm trying to aim for is is wireing my 98 which now has a db2 pump the same as the 95 bus that the TCM came from ,as far as I know ,I could be wrong ,but it had a db2 …