help..car dies when stopping!!!

bill302

Active Member

Nov 2, 2005

2,131

1

46

alabama,gadsden

May 11, 2006

#1

• May 11, 2006

• #1

2002 gt stang the motor dies when i stop. i will pull codes tommorrow but what can i do to try and fix it tonight. has anyone had this problem before. its a friends stang when he gets here i'm going to clean maf and iac and reset computer to see if that helps what else to do?and to reset computer can i unhook battery for 30 mins.right?

 

DropTopPony

Noob Slayer

Founding Member

Aug 13, 2002

2,570

3

48

south jersey

May 11, 2006

#2

• May 11, 2006

• #2

sounds like an iac issue, clean it out. Hopefully thats all it is.

 

bill302

Active Member

Nov 2, 2005

2,131

1

46

alabama,gadsden

May 11, 2006

#3

• May 11, 2006

• #3

i'll clean it and reinstall. he has deleted the pcv valve and is running 2 filters i don't think this would affect anything.... to reset computer disconnect the battery?

 

00GTMarine

New Member

Aug 24, 2005

12

0

0

Missouri/California

May 12, 2006

#4

• May 12, 2006

• #4

Same thing happened to me and after cleaning the IAC she ran perfectly~I hope thats it too, easy fix

 

Mike97gt

it doe snot

Founding Member

Jan 26, 1999

10,633

7

89

the people's republic of massachusetts

May 12, 2006

#5

• May 12, 2006

• #5

tap the IAC with a hammer and see if it's better after that.

even if it is you need a new IAC

 

bill302

Active Member

Nov 2, 2005

2,131

1

46

alabama,gadsden

May 12, 2006

#6

• May 12, 2006

• #6

00GTMarine said:

Same thing happened to me and after cleaning the IAC she ran perfectly~I hope thats it too, easy fix

Click to expand...

would your stang idle right after you cranked it.because his stang idles great until you give it some gas and upon returning to idle it stumbles and dies most all the time...

 

00GTMarine

New Member

Aug 24, 2005

12

0

0

Missouri/California

May 12, 2006

#7

• May 12, 2006

• #7

Mine stumbled right when I cranked it...let us know how it turns out after you clean and tap the iac and the maf

 

bill302

Active Member

Nov 2, 2005

2,131

1

46

alabama,gadsden

May 12, 2006

#8

• May 12, 2006

• #8

o.k. thanks for the advise...

 

04gtdrop

New Member

Jun 10, 2005

532

0

0

Sac, CA

May 12, 2006

#9

• May 12, 2006

• #9

i just started having this same problem as of two days ago!!!! mine is a 2004 GT. Do you think cleaning the MAF and IAC will help? how do i clean it with out breaking it?

thx

 

bill302

Active Member

Nov 2, 2005

2,131

1

46

alabama,gadsden

May 12, 2006

#10

• May 12, 2006

• #10

click on links below it demonstrates how to clean maf and iac it demonstrated on sn95s but the application is similar on your stang...
http://www.muscularmustangs.com/maf.php
http://www.muscularmustangs.com/iac.php

 

bill302

Active Member

Nov 2, 2005

2,131

1

46

alabama,gadsden

May 12, 2006

#11

• May 12, 2006

• #11

well cleaned maf and iac no change run seafoam through entire system intake and gas system. added 93 octane problem cleared up i'm suspecting bad gas ...problem solved and thanks for all the help....

 

00GTMarine

New Member

Aug 24, 2005

12

0

0

Missouri/California

May 12, 2006

#12

• May 12, 2006

• #12

As high as gas is right now there should be no such thing as bad gas....those bastards

 

D

DerekStangGT

My package is in the mail!

Feb 18, 2003

1,068

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36

May 13, 2006

#13

• May 13, 2006

• #13

take a hammer and LIGHTLY tap the IAC valve a few times to break up the carbon buildup. i did that on mine when it started to die ~10k miles ago. it ran great after that, and i just had to "tap" the IAC again last week when it started acting up again. i just dont wanna shell out $80 for a new IAC valve

EDIT:damn, Mike beat me to it....hah. Mike i wanna know honestly how many times people come in for dying, and the techs tap the IAC to correct, then charge 1.5 for an IAC r/r. haha

 

K

Kilgore Trout

Fried or Broiled ?

10 Year Member

Mar 30, 2005

4,749

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134

May 13, 2006

#14

• May 13, 2006

• #14

I would rather use a long handled screwdiver than an actual hammer to tap the IAC myself...

 

D

DerekStangGT

My package is in the mail!

Feb 18, 2003

1,068

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36

May 13, 2006

#15

• May 13, 2006

• #15

McTeague said:

I would rather use a long handled screwdiver than an actual hammer to tap the IAC myself...

Click to expand...

i didnt say to use a sledge. a hammer is fine, but if you are such a hauss like trout, and have too much strenth, you can use a long handled screwdriver. most people have a hammer though.

 

KronicRacer

Member

Jun 23, 2004

502

1

18

puttering around Ft Lauderdale, FL

May 13, 2006

#16

• May 13, 2006

• #16

if it happens again pull the code if it says PO4xx evap emmissions system leak detected (small/gross leak) culprits are the filler cap or the neck assembly to tank itsself, what happened to mine recently. basically the fuel tank cant get pressureized to what it should be at, making a no no condition.

things to look out for:
*drip by fuel tank(passenger side)
*smell of raw fuel
*the above mentioned code

 

Y

Y2K_MustangVert

Member

Sep 19, 2003

185

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16

May 13, 2006

#17

• May 13, 2006

• #17

I have had this happening for the past couple months, and just replaced the IAC and it didn't help at all. Here is a stupid question, and I don't mean to hijack the thread, but when you install a new IAC should you disconnect the battery so that it can relearn the idle?

 

K

Kilgore Trout

Fried or Broiled ?

10 Year Member

Mar 30, 2005

4,749

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May 13, 2006

#18

• May 13, 2006

• #18

It never hurts to reset the PCM (disconnect battery) anytime you are making changes to the car such as replacing or upgrading parts.

Custom tunes are NOT LOST when resetting PCM.