When does the transmission shudder under heavy acceleration?
The transmission shudders slightly at acceleration after shifting into 2nd and again once it shifts into 3rd. It doesn’t do it under heavy acceleration or very light acceleration.
What happens when the throttle position sensor fails?
The throttle position sensor can fail in several ways, all of which result in poor fuel economy at best, and performance limitations that may create safety hazard for you and other motorists at worst. This sensor can fail gradually, or all at once. In most cases, the Check Engine Light is illuminated if a TPS failure is detected.
What does it mean when your car throttles up while driving?
In these cases, the TPS isn’t providing the right input, the onboard computer cannot direct the engine to work properly. When the car accelerates while driving, it usually means the butterfly valve inside the throttle has closed up and pops open suddenly when the driver presses on the accelerator.
The transmission shudders slightly at acceleration after shifting into 2nd and again once it shifts into 3rd. It doesn’t do it under heavy acceleration or very light acceleration.
How is the throttle connected to the accelerator?
In the old days, there used to be a cable that was connected from the throttle to the accelerator. But now in the technological age, the car’s computer controls when the throttle opens and closes by the feedback it gets about the acceleration of the vehicle.
What happens if you have a bad throttle position sensor?
A faulty throttle position sensor will not let your car accelerate normally. Though this doesn’t happen all the time. You may experience slow acceleration, acceleration surge at both high and low speeds, hesitation or delay in acceleration, and other related symptoms.
In these cases, the TPS isn’t providing the right input, the onboard computer cannot direct the engine to work properly. When the car accelerates while driving, it usually means the butterfly valve inside the throttle has closed up and pops open suddenly when the driver presses on the accelerator.
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.
What kind of transmission does a Civic EX have?
I have a 2006 Civic EX with automatic transmission which had about 75000km (or about 45000 miles) at the time of the transmission shudder. I say “shudder” but it also felt like a “shake”, or vibration.
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.
I have a 2006 Civic EX with automatic transmission which had about 75000km (or about 45000 miles) at the time of the transmission shudder. I say “shudder” but it also felt like a “shake”, or vibration.
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.
What makes a torque converter shudder at low speed?
Torque Converter Shudder Problems. A torque converter is the fluid coupling between an engine and transmission that allows the engine to idle at low speed without engaging the transmission. A torque converter uses an engine-driven turbine (fan) to push fluid through a matching turbine attached to the transmission.
When does a Honda Accord transmission go bad?
Cottman Transmission has a reputable reputation for specializing on rebuilding transmissions, and is very familiar with premature automatic transmission failures on Honda Accords involving numerous years of manufacture. The transmission failures generally occur between 80,000 to 130,000 miles.
What kind of transmission does a Honda Accord have?
Four speed automatic transmission completely failed prematurely for my 1997 Honda Accord LX, 4-door, with only 69,550 miles despite required Honda maintenance, to include automatic transmission fluid changes by the Honda dealer.
When does the Honda Accord shift from first to second gear?
Transmission flares between 1st and 2nd. occasionally between 2nd and 3rd as well. The transmission in my 2000 Honda Accord EX-L V-6 slips when going from first to second gear and slightly from second to third, especially when cold. Sometimes it won’t shift at all and the ‘check engine’ light comes on and the D4 light starts blinking.
When do you get a shudder in your car?
Transmission shudders seem worse than they actually are. Shudders occur most often when shifting into overdrive or when in overdrive and going up a slight incline.
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.
Why does my car shudder when in overdrive?
Transmission shudders seem worse than they actually are. Shudders occur most often when shifting into overdrive or when in overdrive and going up a slight incline. This occurs because the transmission fluid is contaminated and the contaminates, being suspended in the fluid, prohibit good pressure contact between…
When does transmission shift hard from 1st to 2nd Rd?
When car transmission Fluid is low or dirty is could lead to transmission shifting hard from 1st to 2 nd and even from 2nd to 3 rd. So when you have a gear shifting issues, one of the things to check is your transmission fluid.
What to do when your Ford transmission shudders?
The letter says to completely drain all the fluid out of the transmission and replace it with Mercon V. In addition, a transmission cooler must be added, Ford part number FZL3-7K177-AA (YO8) It could take as much as 50 miles to completely eliminate the shudder after the fluid change.
Why does Ford Shudder after shifting into 3rd or 4th?
Shudder accruing under light or moderate acceleration in 3rd or 4th. Especially in warmer southern climates. Models AODE and 4R70W transmissions. If you choose to take the drain and fill option make sure to drain the converter and remove the pan and replace the filter. You may also want to add an additive like lube guard sold at most NAPA stores.