avery.whss

Like the title says....Sometimes when I WOT it...the car chokes hard...like it jerks really bad and doesn't rev past 3k...it's so weird...with and without tune...with stock filters and AFE non-oil ones...I see some other members have the same issue? Although one thing that just happen is it jerked the worst it ever has and then that orange engine light came on and I thought "**** what did I blow up now" but I turned the car off and turned it back on and it's normal again?? - No lights/CEL...Just normal, Just wondering if I should take it to MB or not?

mdgrwl

You can't rev past 3,000 RPM and you got a CEL and your asking if you think you should go to the dealership ??? What do you think ??? I would most cerntly do so. The only way I could find this a legit question is if your out of your warranty.

avery.whss

I don't have a warranty on my car...I bought it used from some crappy dodge dealership...the only reason I ask is because it's done this a few times before...plus after I turned the car off and on again it was perfectly normal..no issues what so ever...if it was a serious issue wouldn't it be there after the car was shut off?

mdgrwl

If it went away after you cycled the car, it sounds like it's an electronic issue. And it ony happens at WOT ?

avery.whss

Yep only WOT and not very often...it's almost like it's ESP kicking it...I mean it's in ESP-SPORT...Could it be?? I just got brand new tires so maybe when I WOT it..it's trying to break them loose but can't..no idea

Zeee_Q

Get the code read. If the CEL light came on, the code is probably still stored. There's no reason why your CEL should come on because you got new tires and went WOT.

avery.whss

Just to confirm...this is CEL right? it's not the other "!" on the other side of ESP? ...How do you get the code? I've never done that..or is that something MB has to do?

Also had the car out 15-20mins ago again and beat on it...ran fine..like I said it only happens once in a while outta no where

mdgrwl

Yes, thats a CEL. Im guessing you dont have a code reader, do you? If not, a place like autozone has them and will read your car for free.

CoolBDPhenom03

It could be a sensor shorting out causing throttle issues.

roadtalontsi

does it just light up and stay on or blink? If it happens enough- cycling the key on/off isnt going to keep turning it off. it'll just stay on.

avery.whss

Stays on...didnt blink

Merc63

Prob time for some new spark plugs or o2 sensors.

CoolBDPhenom03

A blinking CEL means something worse than just a CEL. It could be a misfire. In my most recent case, it was my intake manifold gaskets leaking.

roadtalontsi

yes, a blinking cel is a misfire once its detected it shuts off the injector for the affected cylinder(s) you need to get this addressed as misfires can definately be harmful.

NCBob

Several earlier posts about a similar issue. I think you will find an answer by searching.

roadtalontsi

the only possibility of this fixing itself, is if it started right after you filled up with a fresh tank of gas - which was bad. which would be a problem from outside influence and not a mechanical/electrical issue.

D.T.SFK

Sorry avery.whss I don't mean to hack your thread...
I also have a slight "choking" feeling when driving my car, however it only happens when the car is at cruising speeds (65mph+-) and partial throttle. What I mean by partial throttle is that I am acceleration slowly in S without the car shifting down, therefore staying in 7th. It's happened everyday whenever I commute, but only in the morning. Whenever I am on my way home at night it never happens. No codes, no nothing... Do you guys have any idea what it is?

avery.whss

Im going to check the plugs this weekend...when I bought the car it was neglected...when I changed the airfilters they were black so they never were ever changed and I'm going to guess the same with the spark plugs..my guess is they are blacker then black but I'll update this weekend

Autosport7

Could it be a throttle positioning sensor?

avery.whss

It's fine...hopefully it's something simple...you know what I'm thinking...and it might sound stupid...but conditions...I live in an area with a lot of moisture in the morning...and mine usually only does it when it's morning-ish too...is that a possibility? or am i just making my self sound stupid

avery.whss

funny you say this because it's usually happening when my car is under half tank of gas..(fuel pump?)...not doing it when it's a full tank i believe

Autosport7

If it is only doing it under a half tank of gas, and also seems more prevalent when moisture is present, I wonder if tank condensation is the issue...?

roadtalontsi

pretty unlikely If its driven regularly. I dont think ya'll know how air tight the evap system is benz cars. Its a royal pain to smoke test the evap system and actually find a leak - when the car says it has one. the car has 2 fuel pumps in the right side of the saddle - closest to the gas gap. It syphons all the feel from the left to the right at 1/2 tank so it doesnt get starved. Keep an eye on your mpg's - level sensors do go bad and stick but usually thats more the car just dieing randomly because it says its got 1/4tank but its actually empty. As for spark plugs they are do at 60k miles, but if you drive hard it'd be advantageous to do them atlest every 40k. the brisk plugs weistec sells are a great alternative to stock and similarly priced. Other than that i would go with intake manifold or manifold gasket leakage problems. You say it only happens in the morning, is this only when the motor is still cold and warming up or after its up to operating temp? Also you mention changing the air filters - did it just start happening after that? too much oil, or you didnt get them sealed right

avery.whss

I was thinking spark plugs...they probably have never been changed and my car is nearing 60,000KM...I just had the entire intake manifold replaced at MB and it was choking before that...and yeah usually when its cold or a very cold day or a day where it's like almost raining but not..on a sunny day it's never done it...and no thats why I changed the airfilters...figured they were old and they were but still does it


P.S are these the plugs?

http://www.weistec.com/m156spark.html

roadtalontsi

yes those are the plugs. How long ago was your intake done? it may be a parts warranty on something they replaced - like the gaskets. it maybe temperature related once the engine is nice and hot it seals up and like doesnt have the vacuum leak anymore.