Why does my car shift hard when I let off the gas?
Most of the time this is caused by an internal transmission issue. If the engine is running fine and is producing the correct sensor signals then the transmission is the problem. Also, one thing that will cause this is the vehicle speed sensor. If this fails then this will occur.
Can fuel issues cause transmission problems?
For the most part, anything that affects the engine performance will lead to trouble shifting gears in your car. If the fuel system is too full or low or if the fuel filter or fuel injection system is dirty, these will also mess with the gears.
What to do when transmission won’t shift?
An old trick I learned was to get to a huge mall or school parking lot, fire it up, shift into reverse and floor it. Your speedo won’t work, but get going as fast as you can for about 10 seconds. Then, very quickly, drop the column shift lever down as far as it goes, with your foot still firmly planted to the floor.
Why does my Chevy Silverado not shift into 2nd?
Transmission shifting is based on 3 major factors: 1- vehicle speed 2- engine vacuum 3- throttle position However there are other factors that also play into it but probably wont cause issues as bad as you are describing. It sounds like you have replaced TPS and VSS and verified those.
When to know if your car has a transmission problem?
Hesitation: If the car hesitates when shifting, it’s usually a problem with the clutch. But if you find that the vehicle isn’t shifting smoothly, it could also be a sign of transmission trouble. Low or leaking fluid: A transmission fluid leak is one of the most reliable signs of a transmission problem, and should never be neglected.
Why does my car shift from 3rd to 1st gear?
This morning I tried to unplug the transmission connector, normally it shoud put the trans in Limp Mode and have only the 3rd gear (in forward movement) but it still in 1st ??? From my experience a shift after letting off the throttle is an indication of poor or low engine vacuum whether actual or via a faulty sensor.