Cycle through all forward gears and reverse. Shudder fix problem 8L458L90.
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The 8L90 is an eight-speed automatic transmission built by General Motors Company.
8l90 fluid change. Use compressed air to remove any residual fluid from cooler lines. Remove transmission pan and drain transmission fluid. This procedure will work with any GM vehicle w.
A new transmission fluid exchange procedure and a new formula of Mobil 1 Synthetic LV ATF HP transmission fluid have been released to address torque converter clutch TCC shudder conditions on 8L45 and 8L90 8-speed automatic transmissions RPOs M5N M5T M5U M5X in some 2015-2017 Escalade Yukon. New Fluid Exchange Procedure. If the fluid is flowing as a steady stream wait until the fluid begins to drip.
Operate vehicle on hoist for 10 minutes. Lubricate the seal with AW-1 fluid and install the O-ring before installing the plug. A new repair procedure for the DT-45096 TransFlow machine to exchange fluid also has been developed to address torque converter clutch shudder on 8L45 and 8L90 8-speed automatic transmissions RPOs M5T M5N M5U M5X.
The 8L90-E 8 speed transmission is made to unlock the power of the LT1 engine. All TTY bolts used in the 8L90 should be replaced. Quick rough tutorial on how to change the Automatic transmission fluid in the 2015 to 2017 Cadillac Escalade.
2016-2019 ATS CTS Camaro. The 8L90 can be identified by the following RPO codes M5Q M5X and new for 2019 MQE while the 8L45 is identified by the RPO codes M5T M5N. Used in numerous GM car and light truck applications the 8L90 transmission and its little brother the 8L45 are a challenge even for the most experienced dealership or repair shops.
After several years of operation problems with the solenoids were eliminated which were not too reliable and clogged from dirty oil on the first versions of the transmission. Minimize the length of oil feeds which provides for enhanced shift. The 8 speed architecture utilizes a chain driven fluid pump.
The second generation of electric valves was more successful they could withstand 200000 kilometers or more and could be cleaned which. It is currently phasing out the 6L806L90 transmissions although it hasnt done its all the way yet. The 8L90 uses Dex 6 HP Transmission fluid which was developed to have a more consistent viscosity profile as well as improved lubrication characteristics.
The plastic baffle is held to the valve-body assembly with two TTY torque to yield bolts that use a Torx Plus socket. Structurally the 8L90 is similar to the 8L45 except that it is made to handle more power and torque. Operate vehicle on hoist for 10 minutes.
New gear ratios allow for take-off power and comfortable cruising. Use compressed air to remove any residual fluid from cooler lines. GM 8L90 and 8L45 transmission problems have caused a proposed class action lawsuit that alleges the 8-speed transmissions are defective in the following vehicles in California Illinois Michigan.
And 2017-2019 Colorado and Canyon models. The 8L90E is an 8 speed automatic transmission developed by General Motors and introduced for the 2015 Model year. With the baffle out of the way the pump-driven gear and chain are visible and can now be removed.
Install the transmission pan and refill with new transmission fluid following fill procedure in SI to obtain correct fluid level. Different variants of the 8L90 transmission are all based on torque capacity. The replacement plugs come with an O-ring.
Allow any fluid to drain. If no fluid comes out after you remove the plug and the temperature is within the specified range add fluid until it runs out as a steady stream. It is designed for use in longitudinal engine applications either attached to the front-located engine with a standard bell housing or in the rear of the car adjacent to the differential.
Install and tighten the new transmission oil drain plug to 6lb-ft 8NM. I have 8L90 the thing shifted like my old powerglide had 60 k miles should have flushed at 30 k old fluid looked bad. Cycle through all forward gears and reverse.
Introduced in 2015 with a major update in 201819 the 8L90 is starting to appear in shops around the country. If you change the transmission valve body solenoids or. Remove transmission pan and drain transmission fluid.
It is a hydraulic design. Install the transmission pan and refill with new transmission fluid following fill procedure in SI to obtain correct fluid level. The truck is a 2017 Silverado cost me 55000 Still got my 1975 C10 turbo.
The different 8 speed transmission variants use common components. GM also produces a similar design with the smaller 8L45. Remove the transmission oil level check plug 1 from the transmission fluid pan.
8L90-E 8 Speed Transmission for LT1. The 8L90 is the subject of a class-action lawsuit filed in December 2018 that alleges the transmission suffers from persistent shudder issues an. The baffle is also made with torque-limit inserts.