[GuitarstarX7]

does it only shake when you first start it and it has been sitting/cold? or does it do it randomly when it is warm also?

[benleonheart]

Originally Posted by GuitarstarX7

does it only shake when you first start it and it has been sitting/cold? or does it do it randomly when it is warm also?

it does it randomly, sometimes cold, sometimes warm...

and sometimes it doesnt even stutter at all,
my car does not shake!, it just hesitates, as if grasping for... fuel or air, dunno...

I'll upload the vid soon, I just filmed today on my way to work...

[GuitarstarX7]

could it be an dirty injector? I would try a fuel system cleaner if you haven't yet. Try to use it when the fuel is low so it's more concentrated.

[b1lk1]

Originally Posted by GuitarstarX7

could it be an dirty injector? I would try a fuel system cleaner if you haven't yet. Try to use it when the fuel is low so it's more concentrated.

Fuel system cleaners are useless and will do nothing. They are a complete waste of money.

[benleonheart]

Originally Posted by b1lk1

Fuel system cleaners are useless and will do nothing. They are a complete waste of money.

Really? :\
Lol.
Okay...

I might have the video up later, i took it while driving to work with my windows lowered so ... I'm not sure it sounds too good...


***Update***

here's the vid...
I'll probably just shoot another one since this... isnt a good quality vid !

http://www.youtube.com/watch?v=v8aQ6Wct6LU

by the way...
the engine check light's on...
engine light ahs been on ever since i removed my cats...

[b1lk1]

There is nothing you could pour into your gas that could ever clean out a poor performing injector. Only professional high pressure cleaning could do that. Over the counter fuel injector cleaner is just not gonna do a thing no matter how strong the concentration.

As for the check engine light, did you remove oxygen sensors as well? This would also cause issues with performance.

[GuitarstarX7]

yea it looks like the light blinks when it starts to stutter. its kinda hard to tell in the video. was the problem there before you removed em?

[benleonheart]

Originally Posted by GuitarstarX7

yea it looks like the light blinks when it starts to stutter. its kinda hard to tell in the video. was the problem there before you removed em?

Yep it stuttered before...

Another thing I forgot to mention, is that this only happens when I stomp the accelerator, if I build up my speed slowly, there's no hesitation noticeable...
Sometimes when I floor it, I can hear a click(more like a clack) coming from the engine, and suddenly the Stang just bursts out its true power and Im like ...

Hope this info helps...

[benleonheart]

Ok, I took two Idling videos (1st one was interrupted by the car's alarm[yes, we use alarms in Honduras because of car theft]) then interrupted by an SMS who cut the video.

The second one describes it pretty much, when I rev it from the engine in a fast quick motion, it hesitates/stutters a bit...
well, they speak for themselves:

http://www.youtube.com/watch?v=0_ObYkzFHNE

YouTube - Stutter03

You can also hear the exhaust on the 1st video, how it sounds, not like natural but... has an odd rythm...
dunno..

[Markstang690]

benleonheart if i were you id get that cel code read theres almost definitely some other code other than the 02 sensor one that would come from not having cats on it.. u might have another code hiding under that initial check engine light

mattsmustang99 your problem is most intriguing i wanna see the shaking that you have on startup seems really wierd maybe we'll be able to help more if you actually show us the problem

[03.8TJmustang]

i've seen this happen but at 4k rpm... i wrote not to long ago on one of these threads that my friend had to replace his fuel pump to get it to stop doing that...But really i wouldnt know... also it never gave my buddy the check engine light when it was happening... other then that i have no clue =/

[benleonheart]

My mechanic recommended me to take it to an EFI shop, they specialize in that...

We dont have shops that do all around, only for specific parts, like... a shop for tires, a shop for EFI, a shop for body, a shop for exhaust, etc..

I'll probably take it to the shop when I find the time so I can get my car codes read, and a general diagnostic on the EFI... see what happens:\

[MattsMustang99]

Alright, I will try and shoot a video today. I logged off for a few days and never expected this many responses because I have only had one or two in the past..... but we get new members every day don't we lol!

The car has been gone over several times with a fine tooth comb. I have taken every darn part off inspected cleaned etc and put back together. The only parts not checked are internal such as fuel pump.

It will not be rotors or brakes, but thanks though!

My stang does not have the stutter.... just a acceleration and power depression. It just is moody and sometimes only gives 95%. This causes a shake as my mounts are a little worn but soon to be replaced unless I set my car ablaze first, sell my soul, and get a Super Snake.

But that means my friends have to ride in the back because I am sure the devil always calls shotgun, I hear he is a real ass.

Thanks.

Look for video soon.

[MattsMustang99]

I have the videos.... but cant find my camera cable! Argh! Just letting everyone know I didn't forget to post again....

[Markstang690]

lol no rush....... for us.... we'll be here to help lol however long it takes