My car jumps in to over drive, idles to high, and is hard to stop while driving, what is the cause?

Answer 1

If everything occurs in this order, it sounds like you might just be a quart or two or three low on transmission fluid.

When you hit the gas the engine will rev with less forward momentum than usual and it might jump into over-drive prematurely assuming you are going faster than you are and vice-versa when coming to a stop.

If this does not help, you might need to look into a throttle position sensor.

Might need to have a dependable shop drive it and then do a diagnostic on it before jumping into any parts or repairs. Hopefully it's an easy fix.

Good Luck!

Answer 2

If the car is an automatic then it should go into overdrive anyway, unless you actually have an overdrive switch that you turn off, if it has a high idle then a few things can cause that, bad air idle control valve, faulty injectors, etc, if it's hard to stop while driving then maybe you have bad brakes

Answer 3

Hard to Stop:
Check your rotors and pads, your brake booster might be malfunctioning, low brake fluid, calipers might need to be rebuilt.

High Idles:
Your throttle might be sticking, or a sensor going wonky

Overdrive
If you have an over drive switch you can turn it off and on and see what happens. Sensor for the transmission might be kicking it to switch into overdrive, or something in the transmission is letting slip into overdrive.

Answer 4

Try checking your idel screw if you have one. Sometimes they can be turned in to far and cause you to idle high all the time. As for the stopping part, have your breaks checked. Check your break fluid as well.

Answer 5

it is so unusual, or i assume it incredibly is not, yet i've got had the comparable appropriate difficulty! I actually have a 2003 Nissan Altima with a matching mileage to it and it incredibly is been shaking for it slow now. After lower back and lower back listening to from our general mechanic that the motor vehicle is large, we desperate to take it to Nissan and spent approximately $800 on God knows what the restore the difficulty. actually an afternoon once I felt the motor vehicle start to shake lower back and it would proceed on and rancid. finally, it have been given to the element the place the service engine quickly sign grew to become into not in straightforward terms consistently on yet might start to blink by way of fact the motor vehicle did the comparable issues as you have pronounced on your description: worry accelerating as though there wasn't adequate power, and particularly shaking whilst i grew to become into idle or as i began out braking. I went lower back to my ordinary mechanic considering Nissan advised me I had to attend an afternoon or which you're able to (perhaps) get my motor vehicle checked, and in accordance to his gadget it stated there grew to become right into a misfire that for the duration of contact changing between the coils, as you have pronounced. whilst he regarded at it the day before however, he theory it grew to become into the spark plug that necessary to get replaced, as you have additionally pronounced. We ended up changing between the coils ($80) and so a great way i've got felt a distinction, the mild hasn't confirmed up lower back yet, and it form of feels to be so lots extra perfect. He advised me to tell him if something changes. i will make it easier to be attentive to as properly. ultimate of luck. (even in spite of the incontrovertible fact that this got here approximately to you 4 years in the past) lol What ended up being the diagnosis besides?

Answer 6

I would start by looking for a vacuum leak..hose off,broken or crack hose...nice to know what kind of a car you have...find the leak

Answer 7

Your transmissions shot, your timing is off and you need new brakes....next.