Odd Issue, 05 GT

Cerwindel

New Member

Nov 17, 2004

23

0

0

Sacramento, CA

Jun 23, 2008

#1

• Jun 23, 2008

• #1

Guys, Have a very odd issue on my 05..

So, I recently noticed, hesitating when moving from a stop.. Also when I come to a stop the engine almost dies, the idle drops to 350-400ish range and sometimes even sputters some, then after a second it sits at around 500rpm..

After that when I step on the gas pedal, it seems to hesitate and as I push further it finally picks up and starts moving.. Very harshly..

This just recently occured..

05 Auto - 40k Miles, 87 Octane gas,

WORST part is the coming to a stop and almost stalling.. ALSO the idle at low speeds is bouncing all over the place...

NO CEL... Really odd

ANY Ideas??

 

Towelly

New Member

May 9, 2006

174

0

0

Jun 23, 2008

#2

• Jun 23, 2008

• #2

I think there is a TSB out there on this. Lemme look quick.

Edit: I found it. Make sure you have adobe reader. http://www.stangnet.com/images/stories/docs/s197_TSBs/06-9-9.pdf

 

W

welchy

Active User

Mar 30, 2006

11

4

29

Jun 24, 2008

#3

• Jun 24, 2008

• #3

That does not sound like your problem. My car did the exact same thing when my intake came loose. Check to see if your intake is loose. I would also suggest checking your throttle body and MAF sensor to see if they are dirty.

 

S

ski

Member

Dec 14, 2004

380

2

18

Jun 25, 2008

#4

• Jun 25, 2008

• #4

Another possible cause is a bad throttle position sensor.

 

W

welchy

Active User

Mar 30, 2006

11

4

29

Jun 25, 2008

#5

• Jun 25, 2008

• #5

Possible, but a bad tps should throw a code and go into limp mode. I had a bad tps and that is what it did.

 

S

ski

Member

Dec 14, 2004

380

2

18

Jun 25, 2008

#6

• Jun 25, 2008

• #6

A bad TPS will not always throw a code:
http://www.allfordmustangs.com/forums/2005-mustang-gt-tech/89121-2005-mustang-gt-stalling-idle.html

 

H

Hoboattacker

New Member

Sep 7, 2005

542

0

0

Baton Rouge (LSU) / Houston, TX

Jun 25, 2008

#7

• Jun 25, 2008

• #7

ski said:

Another possible cause is a bad throttle position sensor.

Click to expand...

That's where my money is. I have a bad TPS (well it's going out sorta) and every once in a while my car will go to limp home mode when I hit the resume button on cruise and I have to clear the code and it works fine. It did that crazy idle in the winter time last year, too. Gave my car some mad lope and it was sorta sweet...minus the fact that I had to give it gas to keep it alive and it wasn't because my car was fast...just something wrong with it lol

 

Cerwindel

New Member

Nov 17, 2004

23

0

0

Sacramento, CA

Jun 25, 2008

#8

• Jun 25, 2008

• #8

Ok, today she finally died in the middle of an intersection.. Just went into Failsafe at a stoplight..

So, I popped the hood and opened the intake and rubbed off the Mass air sensor, tapped it, and she started right back up, CIL was still on, but it had power again..

Bought a new filter, some MAF cleaner, and some seafoam..

Treated it, and so far so good..

Im going to reset the System and see what happens, if it throws another code, I will take it to the dealer :/

 

mustangford289

Founding Member

Sep 16, 2001

957

5

48

Florida

Jun 26, 2008

#9

• Jun 26, 2008

• #9

filter

Check the fuel filter?

 

T

tomredfiregt

New Member

Jun 3, 2006

16

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0

Lynnwood

Jun 27, 2008

#10

• Jun 27, 2008

• #10

Also have the dealer check the fuel pump. Some early mustangs have had an issue with a defective fuel pump in the tank.