PLEASE someone help why is my car doing this!!
Thread Starter
Pole Position
Joined: Nov 2010
Posts: 2,088
Likes: 188
From: Brooklyn
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So its been driving better since the battery terminal change but I do notice that this may be the issue especially when you first take off with a cold engine. If I press the gas a certain way and let go but don't fully let go so I'm still pressing the gas just at a lower RPM. If its done quick enough I feel like the car gets confused and jerks since its electronic throttle. I don't know if that makes sense but that's what it seems like to me. I doubt its a "knock sensor" as I've never heard of that let alone it going bad on these cars
Why would u even drive like that? ^^^^ ur gassing and then letting up and then back to a slower gassing at lower rpm? Smooth and steady will last longer than fast jerks... So she says ^_^
Last edited by MikeFoxx; Aug 7, 2012 at 11:36 PM.
Thread Starter
Pole Position
Joined: Nov 2010
Posts: 2,088
Likes: 188
From: Brooklyn
Happens pretty easy actually. If you first takeoff but need to slow down because a cars infront and don't realize you didn't completely let go there you go. But I hardly notice it compared to before the battery terminal change so this might just be normal
Racer
Joined: Apr 2007
Posts: 1,361
Likes: 48
From: seattle,wa
Could be a power draw from somewhere on your battery/alternator or electrical issue? could be that some mice bit into some wires some share a t some point. Also tightening and checking your terminal/ battery cables for corrosion and splits does wonders.Hope you get it all sorted out, nothing worse then a out of order gs
oops never mind, i should of read the whole thread before posting..
oops never mind, i should of read the whole thread before posting..
That makes perfect sense actually... I pictured this differently but i can see what u mean now. I thought u were just on an open road doing this on purpose to figure out why what ur feeling is happening.
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Driver School Candidate
Joined: Apr 2008
Posts: 19
Likes: 0
From: OK
My 04 430 just started doing this a few months ago. Spark Plugs look good. I replaced the MAF and air filter. I also cleaned the throtle body intensively. Still doing it.
I notice it most backing out of the garage first thing in the morning. Right after putting it in reverse and pressing the gas a little, it bogs then surges.
I notice it most backing out of the garage first thing in the morning. Right after putting it in reverse and pressing the gas a little, it bogs then surges.
Thread Starter
Pole Position
Joined: Nov 2010
Posts: 2,088
Likes: 188
From: Brooklyn
it seems to me that this is a normal problem with this car. I think its the ECU or stupid electronic throttle. At least im not the only one now I feel more comfortable that its not something too crazy.
My 04 430 just started doing this a few months ago. Spark Plugs look good. I replaced the MAF and air filter. I also cleaned the throtle body intensively. Still doing it.
I notice it most backing out of the garage first thing in the morning. Right after putting it in reverse and pressing the gas a little, it bogs then surges.
I notice it most backing out of the garage first thing in the morning. Right after putting it in reverse and pressing the gas a little, it bogs then surges.
Pole Position
Joined: Aug 2012
Posts: 237
Likes: 10
From: Florida
I did not bother reading all of the replies so someone may have said this.
BATTERY BATTERY BATTERY. check battery, check terminals, check grounds, check alternator. surging at idle is almost always a power issue.
TPS can cause issues, but it wouldn't be like that. it would be a sudden jerky loss in power every now and then. accelerator pedal position sensor will cause the exact same thing.
-CHECK AND MAKE SURE YOU COOLANT TEMP SENSOR IS READING CORRECTLY. not a common problem....but possible.
fuel pressure issue would cause a hard start issue, along with other problems.
BATTERY BATTERY BATTERY. check battery, check terminals, check grounds, check alternator. surging at idle is almost always a power issue.
TPS can cause issues, but it wouldn't be like that. it would be a sudden jerky loss in power every now and then. accelerator pedal position sensor will cause the exact same thing.
-CHECK AND MAKE SURE YOU COOLANT TEMP SENSOR IS READING CORRECTLY. not a common problem....but possible.
fuel pressure issue would cause a hard start issue, along with other problems.
Thread Starter
Pole Position
Joined: Nov 2010
Posts: 2,088
Likes: 188
From: Brooklyn
Just to let everyone know I think I figured out the problem is when cold starting esprcially when the engine is just warming up if you press the gas but try to let go but still have it a little pressed it does the jerking I think that's the issue becuz of the electronic peddle bull****
I would highly recommend any of you 2gs guy with over 100k to change your fuel filter... its a 30 min job and if you use the search tool theres some good DIY's on it. i was experiencing simmilar issues with my 01 430 to the point that the car was stalling and shutting off when i would occasionally break harder than normal (traffic lights) it was also having the same issue with the lazy acceleration and hard idle. the fuel filter fixed all this and you can get an oem one from sewell shipped for about $40
Thread Starter
Pole Position
Joined: Nov 2010
Posts: 2,088
Likes: 188
From: Brooklyn
I would highly recommend any of you 2gs guy with over 100k to change your fuel filter... its a 30 min job and if you use the search tool theres some good DIY's on it. i was experiencing simmilar issues with my 01 430 to the point that the car was stalling and shutting off when i would occasionally break harder than normal (traffic lights) it was also having the same issue with the lazy acceleration and hard idle. the fuel filter fixed all this and you can get an oem one from sewell shipped for about $40
How do u change it on a 01 430? U might have saved my life if that's the issue. It seems like it too as it only happens when the car is first started then once gas is flowing through it pretty much stops