08 Aveo5 Shake or Miss

[PittViper]

I drove the car today for about 12 miles round trip. Much to my dismay, the problem happened again with the a/c OFF. Here are my observations:

It seems to happen mostly when you start out going up hill. I am starting to think this is a shifting problem. There are only ~46000 miles on the car.

Also, it didn't start again until the engine was warmed up. The temp guage was a little bit below half way. (not very accurate)

What do you think now?

[petrified.rabbit]

Now the symptoms have changed, i can say this though, if it was engine related i would hope you would have a cel by now. the transmission is 50/50 on a light sometimes.

what speed did you reach during the test run? do you know which gears you shifted into?
this is where i would need the car.

i think with your stated mileage and that its an 08, its under warranty.

[dlc70]

mine would do this dealer made excuses
they said it was tps sensor and they replaced it but they didnt
(they cleaned it) i got use to jokeying the gas to keep it going once coasted almost a mile lol
finally i bought a used throttle body(caus u just cant get a tps for an aveo)
that fixed it ,,dealer did all kinds of stuff once they said valve cover leaked oil on plugs ,,so i paid them for a tune up for nothing
heres the long and short of it
alot of times if u drop hood hard the prop rod pops out gf holder hittn tps.
and it will crack it,,
causing u to have top replace throttle body

[PittViper]

When car starts out, it is in lowest gear, and this is where the problem mostly happens. Once it shifts for the first time, it may or may not jerk.

Thanks

[EvySpeedy254]

i had that happen to me several since i have a heavy foot and press on the gas al little to much and then let it go right away n the response of the car is like ok what the heck u wanna go fast or u wanna go speed limit so it jerks a bit. only time i smell burning is when im going up a steeeeeep hill on the highway and it drastically changes from 70 to 50 with the gas floored. other than that. do you have automatic or manual. if automatic make sure u check if u didnt put it into 2nd ive done that once and had the same reaction from the car plus the burning smoke.

[PittViper]

Ok, today brings on another problem. Seems definitely major to me, and probably is related to the origional problem I posted about.

My gas tank was on empty, so I stopped to get gas. I always fill the tank up. Well, I pretty much just started fueling when the gas started coming out the fueling tube and spilling on the ground. I put exactly 2.0 gal of gas in and I could not put anymore in without it spilling over.

What gives? This acceleration problem has to be related to the fuel problem.

I eagerly await your response.

Thanks

[thehunterooo]

fuel pump, that senser that floats around in there seems to be misreading the fuel levels, I dont know what else it could be

dlc, did you fix your problem?

[dlc70]

i had exact same thing happen once i thought i was losing it ,,it freeaked me out but happened just once later on down highway i put 17 more in
..friend of mone says theres a chek ball that keeps peopl from siphioning gas
ands it can catch once n a great while
its a weird feeling though

[thehunterooo]

its happened to me 3 times lol, i thought that could be that too, but the car has too many things going on with it lol, stealership time

[myfakeevo]

considering i just bought this car a month ago, im unaware of what sensors it has. but clean the map sensor, check the transmission fluid (when running), do a compression test, check the spark plugs.