- Yank SS Series Torque Converter, GM Truck & SUV, 6-Speed Automatic
- Torque Converters
- 6L80E Specs + Identification
- Torque Converter Failure
- 6L80E Torque Converters
Yank SS Series Torque Converter, GM Truck & SUV, 6-Speed AutomaticProblem to the vehicle became common after a software update to the steering electronics. Vehicle stalled, error codes populated dashboard, vehicle turned off, and restarted itself. All this when in rush hour traffic and vehicle in idle mode. Software reinstalled that same week, and issues corrected. Not sure thus upgrade also affected the transmission fluid flow and torque converter functions. Which lead up to the torque converter failure. I talked to GM and i mentioned the thermostat that is part of the transmission should not be there as it keeps the transmission temperature at F to F for as long as 20 to 30 minutes before it slowly cools down, by that time the same oil in the transmission has been circulating within the transmission with no place to go. So for sure the transmission oil will smell burnt, it is being cooked and that goes on all day long while I travel. We all spend big bucks on vehicles that are supposed to be up top notch with the latest and greatest technologies today and GM cannot produce a Sierra Pick Up that will last. The other GMC Sierra has overmiles I found out that the torque converter will not stand up to highway speeds, consequently disintegrating into very small metal particles that will go into the hydraulic vanes of the transmission and then the transmission is finished. Extremely costly. GM has very weak torque converters, a local transmission dealer suggested a heavy duty torque converter. Torque Converter is overheating and throwing filings into the transmission fluid and consequently throughout the transmission. Strictly highway driving and i do lots of highway miles in a year, for some unknown reason the torque converter heats up, i do not pull a trailer just highway driving. Average annual mileage is aboutmiles. If you have a for-profit service, contact us. Most Common Solutions: new torque converter, transmission 4 reports Get free help with your lemon! Find something helpful? Spread the word. Share on Facebook Retweet this page Email this page. Helpful websites No one has added a helpful site for this Sierra problem yet. Be the first! Find a good GMC mechanic Read reviews of repair shops in your area. Enter your zip code: A free service from CarTalk.
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6L80E Specs + Identification
The cookie settings on this website are set to 'allow all cookies' to give you the very best experience. Please click Accept Cookies to continue to use the site. This transmission can be used in vehicles weighing up to 8, lbs or a gross weight of 14, lbs. Order Online today and get a Monster in your ride! Total Items: 6. Quick View. Our Quick Ship Series Transmissions include a matching quality built torque converter. Quality Inspected for your peace of mind and ready to ship! Most orders can be delivered in a matter of days. Add To Cart Got Questions? Give Us A Call Time commitments may vary as this is a custom built transmissio Mega Monster Transmissions Engineered to Dominate, the 6L80E Mega Monster transmission is tough enough to withstand the rigors of even the toughest street machines delivering tire-spinning shifts race after race. The 6L80E Mega Monster transmission is ideal for vehicles powered by engines producing up to horsepower using pump gasoline. The 6L80E SS Mega Monster transmission is ideal for vehicles powered by engines producing up to horsepower using pump gasoline. Stay Connected. Accept Cookies.
Torque Converter Failure
A common problem on many General Motors cars is the Torque Converter Clutch fails to release and causes the car to stall when it comes to a stop. There is also a specific diagnostic procedure to determine the exact cause of the TCC problem. Before we delve into that procedure, let's talk about the components, what they are and what they do. The torque converter converts hydraulic pressure within the transmission to mechanical torque, which drives the drive shafts and ultimately, the wheels. When the car is in low, second and reverse gears the converter operates in hydraulic or soft drive. In hydraulic drive, the converter functions as an automatic clutch that keeps the car from stalling when at a stop. The impeller puts the transmission fluid in motion. Inside the impeller housing are many curved vanes, along with an inner ring that forms passages for the fluid to flow through. The rotating impeller acts as a centrifugal pump. Fluid is supplied by the hydraulic control system and flows into the passages between the vanes. When the impeller turns, the vanes accelerate the fluid and centrifugal force pushes the fluid outward so that it is discharged from openings around the inner ring. The curvature of the impeller vanes directs the fluid toward the turbine, and in the same direction as impeller rotation. The turbine vanes in the turbine are curved opposite to the impeller. The impact of the moving fluid on the turbine vanes exerts a force that tends to turn the turbine in the same direction as the impeller rotation. When this force creates a great enough torque on the transmission turbine output shaft to overcome the resistance of motion, the turbine begins to rotate. Now the impeller and turbine are acting as a simple fluid coupling, but we have no torque multiplication yet. To get torque multiplication, we must return the fluid from the turbine to the impeller and accelerate the fluid again to increase its force on the turbine. To get maximum force on the turbine vanes when the moving fluid strikes them, the vanes are curved to reverse the direction of flow. Less force would be obtained if the turbine deflected the fluid instead of reversing it. At any stall condition, with the transmission in gear and the engine running but the turbine standing still, the fluid is reversed by the turbine vanes and pointed back to the impeller. Without the stator, any momentum left in the fluid after it leaves the turbine would resist the rotation of the impeller. The purpose of the Transmission Converter Clutch TCC feature is to eliminate the power loss of the torque converter stage when the vehicle is in a cruise mode. The TCC System uses a solenoid-operated valve to couple the engine flywheel to the output shaft of the transmission through the torque converter. Lockup reduces slippage in the converter increasing fuel economy. For the converter clutch to apply, two conditions must be met:. The TCC is very similar to the clutch in a manual transmission. When engaged, it makes a direct physical connection between the engine and transmission. Generally, the TCC will engage at about 50 mph and disengage at about 45 mph. If the TCC fails to disengage when the vehicle comes to a stop, the engine will stall. Before attempting to diagnose converter clutch electrical problems, mechanical checks such as linkage adjustments and oil level should be performed and corrected as needed. Generally, if you unplug the TCC solenoid at the transmission and the symptoms go away, you have found the problem. But sometimes this can be misleading because you don't know for sure if it's a bad solenoid, dirt in the valve body or a bad signal from the ECM. The only way to know for certain is to follow the diagnostic procedure as outlined by General Motors. If you follow the test step by step you will be able to determine the exact cause of the problem. Support the vehicle with jack stands. NEVER run the vehicle in gear when supported only with a jack. Chock the drive wheels and apply the parking brake. I do not recommend that you do this. If all the other tests pass, then it's time to bring it to a shop and have the internal parts checked for proper operation.