Idle prob please help. - Mustang Evolution

Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1996-2004 Mustang GT

Join Mustang Evolution Today


Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 06-11-2012, 07:23 AM   #1
Registered Member
Regular
 
Dpsychostang's Avatar
 
Join Date: May 2012
Region: Florida
Posts: 31
Idle prob please help.

My mustang has been idling rough like sputtering every couple of minutes only when it's in gear and I'm at a stop. Then if I try to accelerate quickly it starts doing the same thing but worst. I thought it was a misfire cause that's what it feels like but it's not throwin any codes for it. What should I do?
Dpsychostang is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 06-11-2012, 08:37 AM   #2
Registered Member
Regular
 
BigB227's Avatar
 
Join Date: Aug 2011
Location: West Palm Beach
Region: Florida
Posts: 1,120
Quote:
Originally Posted by Dpsychostang
My mustang has been idling rough like sputtering every couple of minutes only when it's in gear and I'm at a stop. Then if I try to accelerate quickly it starts doing the same thing but worst. I thought it was a misfire cause that's what it feels like but it's not throwin any codes for it. What should I do?
Try cleaning out or replacing your IAC valve(idle air control valve
BigB227 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 06-11-2012, 10:59 AM   #3
Registered Member
Regular
 
Dpsychostang's Avatar
 
Join Date: May 2012
Region: Florida
Posts: 31
Quote:
Originally Posted by BigB227

Try cleaning out or replacing your IAC valve(idle air control valve
Just replaced it about two weeks ago. It was doing it before and after I replaced it but the IAC was making a funny humming noise and I couldn't figure it out for a couple months so I had to drive it around like that and I'm wondering if that could have screwed something else up. But now that I replaced it the humming is gone and now it's sputtering at idle and when I accelerate quickly.
Dpsychostang is offline   Reply With Quote
Old 06-11-2012, 11:24 AM   #4
Registered Member
Regular
 
Cobra Seb's Avatar
 
Join Date: Apr 2012
Region: New York
Posts: 36
Did you change your positioning sensor
Cobra Seb is offline   Reply With Quote
Old 06-11-2012, 11:29 AM   #5
Registered Member
Regular
 
Dpsychostang's Avatar
 
Join Date: May 2012
Region: Florida
Posts: 31
Quote:
Originally Posted by Cobra Seb
Did you change your positioning sensor
No I didn't, could that cause the sputter?
Dpsychostang is offline   Reply With Quote
Old 06-11-2012, 11:34 AM   #6
Registered Member

Regular
Supporter
 
ab_mach1's Avatar
 
Join Date: Feb 2012
Location: Indianapolis
Region: Indiana
Posts: 7,420
Venomouz831 had some idle issues and found his prob to be a vacuum leak. He had a crack in one of the hoses. You might look in that direction. Could be small enough that when your moving the vacuum increases enough to remedy the prob, till you stop and idle.
ab_mach1 is offline   Reply With Quote
Old 06-11-2012, 11:36 AM   #7
Registered Member
Regular
 
Eturner's Avatar
 
Join Date: Aug 2011
Region: Michigan
Posts: 3,152
Do you have a tune put in your car?... If so make sure (don't remember what it's called off hand, brain fart), the ECU part for throwing codes is turned on!.. Because if it's off, then something can go wrong with your car and it won't throw any codes!..
Eturner is offline   Reply With Quote
Old 06-11-2012, 01:26 PM   #8
Registered Member
Regular
 
Dpsychostang's Avatar
 
Join Date: May 2012
Region: Florida
Posts: 31
Quote:
Originally Posted by Azure
Venomouz831 had some idle issues and found his prob to be a vacuum leak. He had a crack in one of the hoses. You might look in that direction. Could be small enough that when your moving the vacuum increases enough to remedy the prob, till you stop and idle.
Would that cause it to sputter when I accelerate quickly? When I drive like an old lady its fine. Lol

---------- Post added at 12:26 PM ---------- Previous post was at 12:25 PM ----------

Quote:
Originally Posted by Eturner
Do you have a tune put in your car?... If so make sure (don't remember what it's called off hand, brain fart), the ECU part for throwing codes is turned on!.. Because if it's off, then something can go wrong with your car and it won't throw any codes!..
No tune in the car that I know of.
Dpsychostang is offline   Reply With Quote
Old 06-11-2012, 01:40 PM   #9
Registered Member

Regular
Supporter
 
ab_mach1's Avatar
 
Join Date: Feb 2012
Location: Indianapolis
Region: Indiana
Posts: 7,420
Quote:
Originally Posted by Dpsychostang

Would that cause it to sputter when I accelerate quickly? When I drive like an old lady its fine. Lol
For my car, it was the COP's (coil on plug). One was not seated all the way. But I was getting CEL with a misfire code. There is a number of things it could be. I'd start with the easy stuff like...

bad gas
vacuum leaks
bad spark plugs (but could still be spark, just not good)
fuel filter (ever changed?)
fuel pressure (press to low?)

Maybe some others could help with emissions level stuff that could cause this?

Hope that helps!
ab_mach1 is offline   Reply With Quote
Old 06-11-2012, 01:43 PM   #10
Registered Member
Regular
 
Eturner's Avatar
 
Join Date: Aug 2011
Region: Michigan
Posts: 3,152
Quote:
Originally Posted by Azure

For my car, it was the COP's (coil on plug). One was not seated all the way. But I was getting CEL with a misfire code. There is a number of things it could be. I'd start with the easy stuff like...

bad gas
vacuum leaks
bad spark plugs (but could still be spark, just not good)
fuel filter (ever changed?)
fuel pressure (press to low?)

Maybe some others could help with emissions level stuff that could cause this?

Hope that helps!
+11 seeing as you don't have a tune this is a good list to start with!..
Eturner is offline   Reply With Quote
Old 06-12-2012, 08:47 AM   #11
Registered Member
Regular
 
Dpsychostang's Avatar
 
Join Date: May 2012
Region: Florida
Posts: 31
Quote:
Originally Posted by Azure

For my car, it was the COP's (coil on plug). One was not seated all the way. But I was getting CEL with a misfire code. There is a number of things it could be. I'd start with the easy stuff like...

bad gas
vacuum leaks
bad spark plugs (but could still be spark, just not good)
fuel filter (ever changed?)
fuel pressure (press to low?)

Maybe some others could help with emissions level stuff that could cause this?

Hope that helps!
Thanks for the advice bro, at this point I'll try anything.
Dpsychostang is offline   Reply With Quote
Old 06-12-2012, 09:26 AM   #12
Registered Member
Regular
 
garbill2003's Avatar
 
Join Date: Jun 2012
Region: Pennsylvania
Posts: 911
Quote:
Originally Posted by Dpsychostang

Thanks for the advice bro, at this point I'll try anything.
Hey try taking off negative battery terminal for 10 to 15 minutes for the computer to reset then put it back on and drive it see what happens and let us know
garbill2003 is offline   Reply With Quote
Old 06-12-2012, 09:59 AM   #13
Registered Member
Regular
 
Dpsychostang's Avatar
 
Join Date: May 2012
Region: Florida
Posts: 31
Quote:
Originally Posted by garbill2003

Hey try taking off negative battery terminal for 10 to 15 minutes for the computer to reset then put it back on and drive it see what happens and let us know
I did the idle relearn, disconnect neg for 30 mins let engine get up to temp turn ac on max for one minute then drive for about ten miles but it didn't help, not sure if it even works for my year.
Dpsychostang is offline   Reply With Quote
Old 06-12-2012, 10:02 AM   #14
Registered Member

Regular
Supporter
 
ab_mach1's Avatar
 
Join Date: Feb 2012
Location: Indianapolis
Region: Indiana
Posts: 7,420
Quote:
Originally Posted by Dpsychostang

I did the idle relearn, disconnect neg for 30 mins let engine get up to temp turn ac on max for one minute then drive for about ten miles but it didn't help, not sure if it even works for my year.
99 on up, I think.
ab_mach1 is offline   Reply With Quote
Old 06-12-2012, 10:03 AM   #15
Registered Member
Regular
 
Dpsychostang's Avatar
 
Join Date: May 2012
Region: Florida
Posts: 31
Quote:
Originally Posted by Azure

99 on up, I think.
That's what I heard I got a 98 go figure.
Dpsychostang is offline   Reply With Quote
Old 06-12-2012, 10:03 AM   #16
Registered Member
Regular
 
garbill2003's Avatar
 
Join Date: Jun 2012
Region: Pennsylvania
Posts: 911
Ok I would visually inspect it then vacuum hoses take out a plug or two check their condition do a fuel pressure check clean throttle body mas meter simple things before you dump wads of cash into it just my opinion
garbill2003 is offline   Reply With Quote
Old 06-12-2012, 10:08 AM   #17
Registered Member
Regular
 
Eturner's Avatar
 
Join Date: Aug 2011
Region: Michigan
Posts: 3,152
Quote:
Originally Posted by garbill2003
Ok I would visually inspect it then vacuum hoses take out a plug or two check their condition do a fuel pressure check clean throttle body mas meter simple things before you dump wads of cash into it just my opinion
Personally I would pull all the plugs and check them all!.. Besides it only takes a couple of minutes to go through them all!..
Eturner is offline   Reply With Quote
Old 06-12-2012, 10:11 AM   #18
Registered Member
Regular
 
garbill2003's Avatar
 
Join Date: Jun 2012
Region: Pennsylvania
Posts: 911
Quote:
Originally Posted by Eturner

Personally I would pull all the plugs and check them all!.. Besides it only takes a couple of minutes to go through them all!..
I agree they will tell you each cylinders picture
garbill2003 is offline   Reply With Quote
Old 06-12-2012, 10:11 AM   #19
Registered Member

Regular
Supporter
 
ab_mach1's Avatar
 
Join Date: Feb 2012
Location: Indianapolis
Region: Indiana
Posts: 7,420
Quote:
Originally Posted by Eturner

Personally I would pull all the plugs and check them all!.. Besides it only takes a couple of minutes to go through them all!..
+1, and it only takes one to give you probs
ab_mach1 is offline   Reply With Quote
Old 06-12-2012, 10:39 AM   #20
Registered Member
Regular
 
Dpsychostang's Avatar
 
Join Date: May 2012
Region: Florida
Posts: 31
Quote:
Originally Posted by Eturner

Personally I would pull all the plugs and check them all!.. Besides it only takes a couple of minutes to go through them all!..
I would love to but I can't get one out. The eighth plug by the firewall on the passenger side shot outta the block one day and stripped it, I had to get a helix coil on it now it won't come out.
Dpsychostang is offline   Reply With Quote
Old 06-12-2012, 10:43 AM   #21
Registered Member

Regular
Supporter
 
ab_mach1's Avatar
 
Join Date: Feb 2012
Location: Indianapolis
Region: Indiana
Posts: 7,420
Quote:
Originally Posted by Dpsychostang

I would love to but I can't get one out. The eighth plug by the firewall on the passenger side shot outta the block one day and stripped it, I had to get a helix coil on it now it won't come out.
You must have a spank load of detonation going on there. Hopefully a defective plug, but that's rare these days. Working on that prob should be your goal. She won't run right until that is resolved.
ab_mach1 is offline   Reply With Quote
Old 06-12-2012, 11:00 AM   #22
Registered Member
Regular
 
Eturner's Avatar
 
Join Date: Aug 2011
Region: Michigan
Posts: 3,152
Quote:
Originally Posted by Dpsychostang

I would love to but I can't get one out. The eighth plug by the firewall on the passenger side shot outta the block one day and stripped it, I had to get a helix coil on it now it won't come out.
Have you pulled the other plugs yet?.. And how did they look?..

---------- Post added at 10:00 AM ---------- Previous post was at 10:00 AM ----------

Quote:
Originally Posted by Azure

You must have a spank load of detonation going on there. Hopefully a defective plug, but that's rare these days. Working on that prob should be your goal. She won't run right until that is resolved.
+11
Eturner is offline   Reply With Quote
Old 06-12-2012, 11:24 AM   #23
Registered Member
Regular
 
Dpsychostang's Avatar
 
Join Date: May 2012
Region: Florida
Posts: 31
Quote:
Originally Posted by Eturner

Have you pulled the other plugs yet?.. And how did they look?..

---------- Post added at 10:00 AM ---------- Previous post was at 10:00 AM ----------



+11
I pulled a couple and replaced a few that looked bad. If I'm not throwin a code for a misfire could it still be the plugs?
Dpsychostang is offline   Reply With Quote
Old 06-12-2012, 11:35 AM   #24
Registered Member
Regular
 
Eturner's Avatar
 
Join Date: Aug 2011
Region: Michigan
Posts: 3,152
Quote:
Originally Posted by Dpsychostang

I pulled a couple and replaced a few that looked bad. If I'm not throwin a code for a misfire could it still be the plugs?
It possible!.. I would go ahead and pull the others that you can get out and check them!.. Then work on that last one!..
Eturner is offline   Reply With Quote
Old 06-15-2012, 08:47 AM   #25
Registered Member
Regular
 
Dpsychostang's Avatar
 
Join Date: May 2012
Region: Florida
Posts: 31
Quote:
Originally Posted by Eturner

It possible!.. I would go ahead and pull the others that you can get out and check them!.. Then work on that last one!..
The last plug shot outta the block on my way to work yesterday, lol So I had the shop put the new plug in and a new helix coil. She runs great now, I'm so stoked I just wanna drive it for no reason just to get on it and feel that power again. Ok I'm back from mustang fantasy land lol, It was definitely the plugs. Thanks for everybody's help.
Dpsychostang is offline   Reply With Quote
Old 06-15-2012, 08:57 AM   #26
Registered Member

Regular
Supporter
 
ab_mach1's Avatar
 
Join Date: Feb 2012
Location: Indianapolis
Region: Indiana
Posts: 7,420
Quote:
Originally Posted by Dpsychostang

The last plug shot outta the block on my way to work yesterday, lol So I had the shop put the new plug in and a new helix coil. She runs great now, I'm so stoked I just wanna drive it for no reason just to get on it and feel that power again. Ok I'm back from mustang fantasy land lol, It was definitely the plugs. Thanks for everybody's help.
That's great! Glad your running solid. And I just like to drive mine for no reason too!
ab_mach1 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Reply

Lower Navigation
Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1996-2004 Mustang GT

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off


» Like Us On Facebook



05:14 PM


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0

MustangEvolution.com is in no way associated with or endorsed by Ford Motor Company.