When cruising go to accelerate and get a jerking motion
When cruising and want to accelerate a little the car jerks so then you accelerate a little more and then the car goes ok. is this the coils? or the injectors? or the transmission. when put on the computer to check nothing shows up as being wrong.
Re: when cruising go to accelerate and get a jerking...
I just had same problem feels like transmission coming out i changed my pluges and it fixed it like 10 mins ago try that i had mine put on the machine at advance auto for free it told me i had a miss fire it will defently feel like transmissons coming ou hope it helps ken
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here are the converter symtoms: decreased low rpm power, engine runs a little hotter then normal at cruising speed, exhaust leaks near header, bucking or jerking during accelerating, cats exterior surface temp cooler near outlet. if you suspect the cat of being bad take it to a garage, to find out for sure if it is, have a good day !!
Determine whether the jerking is engine or transmission related. One way to determine if it is the transmission lock up converter is acting erratically is to down shift out of OD. And see if jerking persist. If it goes away suspect transmission to have problems with torque converter or TCC solenoid . If it doesn't go away determine whether or not the engine sounds to be misfiring. If so vehicle may require a tune up. Many vehicles can be diagnosed for free at your local Auto Zone.
My experience with Hyundai vehicles strongly suggests you have a bad TPS (Throttle Position Sensor). Replace it... see if that CURES it. (OR, you can have a qualified technician bench test it to see if it is defective). Your solution.
This is a common happening, but it is not necessarily a problem. What happens is when you are driving, the transmission is locked and providing as much power to the wheels as possible. When you take your foot off the accelerator, the transmission unlocks and goes into a passive state to prevent bogging down the engine. When you hit the gas again too soon, you feel a "THUMP" which is the transmission going back into the locked position. While this causes no short-term damage, if you do it often enough, it could cause increased wear for the transmission.