When slowing down jerks and downshifts gets stuck

Bad coil ,spark plug , wire .

Does it down shift appropriately when accelerating? Normally when you stomp on the gas while in a high gear (travelling at 40mph), the transmission will downshift to a lower gear giving the car much more torque. This can cause the car to jolt or jerk forward and accelerate suddenly.



If this is way off base and you\'re experiencing something else, please let me know

TCC switch located in the trans axle is more than likely the culprit and needs to be replaced. take this one to a well known transmission shop. shouldn't run you more than a couple hundred dollars.

Possible that it is stuck in gear.

I have a similar problem with mi Jetta 2010, I when the last week to the dealer and they didn't find anything bad, but the problem still hapenning.

Possible TPS (Throttle Posision sensor)

I am assuming your transmission is a 5speed manual. What is the tachometer reading when you experience this jerking in 5th gear? It sounds like the engine is being lugged. If you are trying to pull a hill or accelerate in 5th gear at less than 40 or 45mph, you need to downshift to a lower gear.

First thing ... pull the dipstick and check the oil. It should be bright pink or red, if it's brown or black and smells bad your oil has never been changed. Drain as much as you can, measure how much came out and replace it with synthetic compatible oil. Start the car and let is run for a few minutes and shift the gears a few times ... then take it for about a 10 mile ride to circulate the oil, stop and go now and then so it will shift through all the gears. You could also add about half a quart of Lucas Transmission Fix.

PCM going bad. real common

the new hyundais shift into second gear when coming to a stop and stay ther until u hit the throttle agian to accel and then they downshift into first for take off,thats how they get such a smooth idle when stopped,try takin it to the dealer ,they will most likely tell u the same thing,hopr this helps