Chevy Aveo 1.5 - Jerks When Rain
#1
Posted 17 October 2012 - 12:15 PM
Hope to have some opinions on my Chevy Aveo.
Yesterday, when it's raining and i stopped my car to pay the toll, the car jerked a few times, like it's trying to jump forward. After I drove off, it returned to normal. So I drove into every pool of water i could find but can't replicate this issue.
It happened a month ago too. It's raining very very heavily at that time. Strangely, it happened at the same toll booth! . That time i drove into every bloody pool of water I could find but can't replicate it also.
The car's perfectly normal, besides these 2 episodes.
So...any opinions on what may be wrong? Maybe the spark plugss wet or something? Or is that particular toll booth cursed
#2
Posted 17 October 2012 - 02:48 PM
#3
Posted 17 October 2012 - 02:57 PM
interesting...maybe it has got to do with the brakes...had changed the rotors and pads recently before this happened and maybe it's because of some misalignment or something..thx.
#4
Posted 17 October 2012 - 03:11 PM
Hope to have some opinions on my Chevy Aveo.
Yesterday, when it's raining and i stopped my car to pay the toll, the car jerked a few times, like it's trying to jump forward. After I drove off, it returned to normal. So I drove into every pool of water i could find but can't replicate this issue.
It happened a month ago too. It's raining very very heavily at that time. Strangely, it happened at the same toll booth! . That time i drove into every bloody pool of water I could find but can't replicate it also.
The car's perfectly normal, besides these 2 episodes.
So...any opinions on what may be wrong? Maybe the spark plugss wet or something? Or is that particular toll booth cursed
Twilight zone
Try simulate how you slow-down and stop at the toll booth.
The jerk is when slowing down, stopped, or you start to move ?
#5
Posted 17 October 2012 - 03:40 PM
Try simulate how you slow-down and stop at the toll booth.
The jerk is when slowing down, stopped, or you start to move ?
exactly what i thought...twillight zone toll booth. next time will use a different toll booth
the jerks happened when i creeped forward and stopped. Like when you creep along in a line of cars waiting to pay toll..
i suspect it's the coil or the spark plug cables...coz it only happened twice during rain, so the cause got to be something to do with water...
but then, i went and "plow" through every water pool to be found along the roads. other drivers think i might be crazy. cannot replicate the jerks. It will be hard to explain to the mechanic..
any ideas?
#6
Posted 17 October 2012 - 05:04 PM
the jerks happened when i creeped forward and stopped. Like when you creep along in a line of cars waiting to pay toll..
i suspect it's the coil or the spark plug cables...coz it only happened twice during rain, so the cause got to be something to do with water...
but then, i went and "plow" through every water pool to be found along the roads. other drivers think i might be crazy. cannot replicate the jerks. It will be hard to explain to the mechanic..
any ideas?
Need more precise. The jerk is when ?
1) From standstill, it starts to creep
2) Creeping
3) Press on brake
4) Complete stop with brake
The jerk is like engine coughing/vibrating ?
#7
Posted 17 October 2012 - 05:13 PM
1) From standstill, it starts to creep
2) Creeping
3) Press on brake
4) Complete stop with brake
The jerk is like engine coughing/vibrating ?
more like number 2 = "creeping"
I think the engine's ok, not coughing or vibrating..
#8
Posted 18 October 2012 - 07:42 AM
#9
Posted 18 October 2012 - 08:41 AM
yeah...strange isn't it . Yesterday was raining slightly and i arrived at the same booth. no problems.. then purposely went to the neighbourhood BHP station for a "Cyclone" automated RM4 car wash and also no problem there.
yesterday morning i bought the car to the Chevy official service centre at Bangi (i am working in Kajang). But the service personnels there are horrible and very slow, and the place looks very run down and dirty. Wasted my time by going there...i don't trust them at first glance. I quickly cabut by bluffing them that i have to go for an urgent meeting
nevertheless, will bring the car for a checkup on saturday at my regular place. If there are any ideas from anybody, let me know
#10
Posted 18 October 2012 - 11:18 AM
I think the engine's ok, not coughing or vibrating..
Very hard to tell the problem, really need a proper tech to spend time on it. The jerk can be many possible reaons:
1) controller - the ISC/fuel regulator/chip/computer/whatever is spoil
2) some sensor spoil - hence not giving correct fuel/air mixture
3) clutch/sensor/pad
etc.
You can try simulate in car park when reach office (engine already fully warmed up), just let it creep, then fully stop. Let it creep again.
Try daily until can find a pattern or more info.