Here are the basic specs for the 6L80E: Manufacturer: General Motors Production: 2005+ Type: 6 Speed Automatic, 10-12. So the question is - how does it shift with the Amsoil? Used a Power Torque filter from Oreilly's. I have the money to have it rebuilt but of course I would rather spend it on other stuff. Recently did a filter and fluid change in my 09 Silverado 6L80. On a truck that see's a fair amount of plowing or towing, change it every 25,000 mi or 1000 hours Don't forget, '99-up Silverados have an hour meter. Also, any recommendations on fluid as I wont be doing a full flush? Which one you use is going to depend on whether or not the transmission is in or out of the vehicle.
You dont need anything fancy to switch over to synthetic either. The 6L90 is a heavy-duty version of the 6L80 six-speed automatic, with a strengthened input gearset that has two additional pinion gears six in total and a strengthened output gearset that uses wider gears than the 6L80. The only thing worse than the transmission was the afm on the 5. The 6L80 was used in trucks, particularly in the platform. I've heard other people talk about concerns they have with the way the 6L80 shifts.
Wondering- dealer told me there isn't really any need to change more frequently than every 100,000 miles unless plowing- every 50,000 miles , as the fluid will be fine and like new for at least 45,000, hence the change at 50,000. If it see's nothing but hard use all year round. For all practical purposes, these two transmissions are completely interchangeable. It does not have a direct 1:1 ratio like the 4L80E and 4L60E, which is worth noting. The 2-3 solenoid is located inside the transmission and requires about 8 hours of labor to repair.
Performance Algorithm Braking Performance Algorithm Shifting is available on some applications. I'm with the last poster, maybe if people stopped buying their vehicles for a while they would take a hard look at what they are building. We do every 30K or every fall, which ever comes first. Seems like a lot of the old wives tales point to not doing a full flush over 100k as you run the risk of dislodging whatever may be in there holding things together. That is why they are. This is the first 6 speed I've owned, so just wondering if this is typical of this transmission, or if it's something that I should be concerned with.
The symptoms are the same as the failure of the forward clutch and are no forward gears but the transmission still has reverse. You can see on this sheet that the vehicle has an M30, which is a 4L60E. Trans fluid is much improved, but filters Allways need to be changed with every service. Trans has no issues today, dont want to create issues before towing season, but I need to do something for sure. All versions use three gearsets: a simple input planetary gearset and two output gearsets, one of which is a compound gearset with three pairs of two pinion gears on the output carrier, one pair meshing with the sun gear and the other with the ring gear. Now that I've done my gm bashing, I do love my '12 silverado. Trans fluid breaks down with heat and age, so it has a service life just like any other fluid.
Thanks, Matt Click to expand. How many quarts does that pan hold? When the time comes to replace the transmission I. It looks nearly identical to the 6L90. It is cheap insurance changing your trans fluid. Advanced Control System Advances in transmission control modules allow them to exist reliably inside the transmission, where temperatures remain fairly constant compared to a body-mounted module.
Please refer to the core return instructions included with the part or contact customer service for more details. You will find it is very informative and the links provided are updated regularly to ensure fresh content. My Silverado has 104k on it, and from what I can tell its never had the transmission serviced. Not changing your fluid in the trans is foolish. I still don't see why guys refuse to change it often enough.
It has a line pressure tap for diagnostic purposes. Put 5 back in and take it for a good drive to get it up to temp, not just engine temp. My Dad maintains it is best not to change the trans fluid at all- maybe there is something to it- we have a 2001 Chevy 1500 Suburban, has towed a lot- has 110,000 miles on it, no trans issues at all and trans fluid never changed. This is true, the point my dad makes is this- he had a 2000 Chevy Solverado 1500 a few years ago- had 43,500 miles on it and he changed the trans fluid- all went well. I'm talking 20 - 30 minute drive. If you drive in dusty areas, tow a trailer, idle or drive at low speeds for extended periods or drive for short periods less than four miles at a time in below freezing temperatures, even smaller intervals are recommended. In fact the input torque rating is 440 lb.