When does the torque converter start to shudder?
When does the torque converter start to shudder?
It generally occurs at part throttle and light acceleration, between 15 and 50 miles per hour, just before the shift to one of the top gears where the converter reaches “lock-up.” Since it is temperature-related, it tends to happen on hot days, after idling in traffic for long periods of time.
When does a torque converter need to be replaced?
Unless there is physical damage to the converter or transmission, shudder is a fairly easy problem to solve. Once the transmission fluid has been overheated enough times, it becomes permanently de-polymerized and need to be replaced.
What kind of fluid do I need for my torque converter?
Lucas brand is the most popular and is recommended by specialists like Mr. Transmission, but is usually the most expensive. Those with older (pre-2000) GM and Chrysler transmissions can try adding a quart of Ford Type F transmission fluid, since it contains friction modifiers that the stock Dextron does not.
It generally occurs at part throttle and light acceleration, between 15 and 50 miles per hour, just before the shift to one of the top gears where the converter reaches “lock-up.” Since it is temperature-related, it tends to happen on hot days, after idling in traffic for long periods of time.
Unless there is physical damage to the converter or transmission, shudder is a fairly easy problem to solve. Once the transmission fluid has been overheated enough times, it becomes permanently de-polymerized and need to be replaced.
Can a stall speed test be done on a torque converter?
Torque converter issues on a lot of older transmissions can be diagnosed by carrying out a stall-speed test. Below we have outlined how you can safely and easily conduct a torque converter test.
What does high rpm reading on torque converter mean?
An RPM reading lower than your engine and torque converters specifications means that the torque converter need a repair or replacement. An unusually high RPM reading indicates a slip in the transmission, which will have to be investigated.
Why does my car shudder at low RPMs?
I sometimes notice it in lower gears at low speeds, and it happens on the highway for a couple seconds at a time pretty regularly if I’m cruising around 1,500 rpms. If I drop to 5th gear and get to around 2,000 rpms, the shudder goes away.
What kind of Shudder does a GM Truck have?
I cruise around these EasTex hills at 1500 all the time with no problems. It gets me 61 mph and between 19 and 21 mpg, depending on the hills. 275/55R/20 stock size Pirellis with 33 psi front 36 psi rear and 3.42. No stumbles or shuddering. In cruise it will sometimes kick down to fifth depending on the hill.
What kind of vibration does a 2000 Electra Glide have?
I had the same problem and here’s the story. My 2000 Electra Glide has a little over 50K miles on it. At about the 40K mile mark I replaced the front motor mount. After changing it, the bike developed a terrible vibration between 1500 to 2500 RPM’s. Shook so bad it started breaking faring mounts.
What to do when your torque converter shudders?
Transmissions can shudder in a very similar manner to torque converters. To determine whether the shudder is tranny or TC related, run your vehicle for a little while till it begin to shudder and immediately park it. With your foot on the brake, put the transmission in Drive, and apply light throttle.
I cruise around these EasTex hills at 1500 all the time with no problems. It gets me 61 mph and between 19 and 21 mpg, depending on the hills. 275/55R/20 stock size Pirellis with 33 psi front 36 psi rear and 3.42. No stumbles or shuddering. In cruise it will sometimes kick down to fifth depending on the hill.
I sometimes notice it in lower gears at low speeds, and it happens on the highway for a couple seconds at a time pretty regularly if I’m cruising around 1,500 rpms. If I drop to 5th gear and get to around 2,000 rpms, the shudder goes away.
I had the same problem and here’s the story. My 2000 Electra Glide has a little over 50K miles on it. At about the 40K mile mark I replaced the front motor mount. After changing it, the bike developed a terrible vibration between 1500 to 2500 RPM’s. Shook so bad it started breaking faring mounts.
What’s the problem with the engine Bucks at 1800 rpm?
Engine bucks only between 1800 and 2000 rpm – very strange problem – Maintenance/Repairs – Car Talk Community 2006 Ford Escape XLT 3.0L DOHC – starts and idles fine. good power upto about 1800 rpm and then again above about 2100 rpm. Problem only exhibits under load (going up hill).
What’s the vibration frequency of a TCC Shudder?
If TCC shudder is present, a vibration peak will appear at approximately 43Hz +/-3Hz. (Fig. 18) If the vibration frequency follows engine, tire, or driveshaft speed, then it is not a TCC shudder vibration. An alternative diagnostic for TCC shudder is to road test the vehicle and monitor commanded and actual TCC slip speeds.
When do you feel the shudder in your car?
The shudder vibration may be noticed mostly during light throttle acceleration of 30-64 mph (48-104 km/h) during steady state driving with the transmission not actively shifting gears. It also may feel like driving over rough pavement or rumble strips.
When does a GM Truck shudder under load?
It will usually do it under a slight load, and is most common between 1200 and 1500 rpms. It will do it for a couple seconds, stop, then do it again a couple times. Usually it’s not under load for long periods of time, but with traffic I notice it more often as I’m on the gas and off more frequently. Is there a loss of power?
When do I feel a shudder in my Avalanche?
On my 2012 Avalanche with 5.3l and 6-speed AT, I experience an intermittent shudder between 1,000 and 1.500 rpms. I sometimes notice it in lower gears at low speeds, and it happens on the highway for a couple seconds at a time pretty regularly if I’m cruising around 1,500 rpms.
