immediate help needed - Mustang Evolution

Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1979-1995 Mustang GT



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 09-23-2013, 08:11 AM   #1
Registered Member
Regular
 
captain78's Avatar
 
Join Date: Dec 2011
Region: Louisiana
Posts: 851
immediate help needed

Ok i need opinions. Ok my fox is stalling. It idles perfect but runs strong but when driving and you go to stop take foot off gas it acts like i just turned key off. Everything is new except distributer and coil. Help im lost
captain78 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 09-23-2013, 10:29 AM   #2
Registered Member
Regular
 
351stroker's Avatar
 
Join Date: Jun 2013
Location: The Pas, Mb
Region: Canada
Posts: 443
Quote:
Originally Posted by captain78 View Post
Ok i need opinions. Ok my fox is stalling. It idles perfect but runs strong but when driving and you go to stop take foot off gas it acts like i just turned key off. Everything is new except distributer and coil. Help im lost
idle air motor new?
351stroker is offline   Reply With Quote
Old 09-23-2013, 10:50 AM   #3
Registered Member
Regular
 
captain78's Avatar
 
Join Date: Dec 2011
Region: Louisiana
Posts: 851
Yep
captain78 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 09-23-2013, 11:18 AM   #4
Staff
Regular
Staff
 
scottydsntknow's Avatar
 
Join Date: Apr 2013
Location: JB MDL
Region: New Jersey
Posts: 16,610
Reset the idle and check the set screw. Also check your TPS voltage.
__________________
2000 Mustang GT Steeda #0048

Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.
scottydsntknow is offline   Reply With Quote
Old 09-23-2013, 01:47 PM   #5
Registered Member
Regular
 
captain78's Avatar
 
Join Date: Dec 2011
Region: Louisiana
Posts: 851
Did and done it idles like a champ just not once you get on throttle Im about to order new MSD idnition system
captain78 is offline   Reply With Quote
Old 09-23-2013, 01:59 PM   #6
Registered Member
Regular
 
351stroker's Avatar
 
Join Date: Jun 2013
Location: The Pas, Mb
Region: Canada
Posts: 443
Quote:
Originally Posted by captain78 View Post
Did and done it idles like a champ just not once you get on throttle Im about to order new MSD idnition system
are you mass air or speed density. I know my speed density gives me trouble.
351stroker is offline   Reply With Quote
Old 09-23-2013, 02:15 PM   #7
Registered Member
Regular
 
captain78's Avatar
 
Join Date: Dec 2011
Region: Louisiana
Posts: 851
Mass air
captain78 is offline   Reply With Quote
Old 09-23-2013, 11:16 PM   #8
Registered Member
Regular
 
351stroker's Avatar
 
Join Date: Jun 2013
Location: The Pas, Mb
Region: Canada
Posts: 443
How big of fuel pump? Adjustable regulator?coil might be a good bet as well. What kind of coil?
351stroker is offline   Reply With Quote
Old 09-24-2013, 07:30 AM   #9
Registered Member
Regular
 
captain78's Avatar
 
Join Date: Dec 2011
Region: Louisiana
Posts: 851
Bbk 255 fuel pump and adjustable regulator set at 40lbs
captain78 is offline   Reply With Quote
Old 09-24-2013, 07:35 AM   #10
Registered Member
Regular
 
captain78's Avatar
 
Join Date: Dec 2011
Region: Louisiana
Posts: 851
And coil is cheap and old autozone coil Thats prolly 10+ years old
captain78 is offline   Reply With Quote
Old 09-24-2013, 10:08 AM   #11
Staff
Regular
Staff
 
scottydsntknow's Avatar
 
Join Date: Apr 2013
Location: JB MDL
Region: New Jersey
Posts: 16,610
Well start with the simple stuff first although don't just throw parts at it... been there, done that. Coil is not expensive and at 10 years could stand to be replaced. Is the distributor orignal?
__________________
2000 Mustang GT Steeda #0048

Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.
scottydsntknow is offline   Reply With Quote
Old 09-24-2013, 10:26 AM   #12
Registered Member
Regular
 
captain78's Avatar
 
Join Date: Dec 2011
Region: Louisiana
Posts: 851
The confusing part is is that it only does it when car is in motion sitting still you wouldnt think anything is wrong with it. Go to take it around block or even just doing a burn out hit clutch come of gas and it dies like you turned the key off
captain78 is offline   Reply With Quote
Old 09-24-2013, 10:33 AM   #13
Staff
Regular
Staff
 
scottydsntknow's Avatar
 
Join Date: Apr 2013
Location: JB MDL
Region: New Jersey
Posts: 16,610
What is your TPS voltage at?
__________________
2000 Mustang GT Steeda #0048

Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.
scottydsntknow is offline   Reply With Quote
Old 09-24-2013, 10:40 AM   #14
Registered Member
Regular
 
captain78's Avatar
 
Join Date: Dec 2011
Region: Louisiana
Posts: 851
.99
captain78 is offline   Reply With Quote
Old 09-24-2013, 11:41 AM   #15
Registered Member
Regular
 
351stroker's Avatar
 
Join Date: Jun 2013
Location: The Pas, Mb
Region: Canada
Posts: 443
For $50 a coil isn't a bad place to start. But kinda sounds like a vacuum leak or IAM isn't picking up fast enough.
351stroker is offline   Reply With Quote
Old 09-24-2013, 11:52 AM   #16
Registered Member
Regular
 
captain78's Avatar
 
Join Date: Dec 2011
Region: Louisiana
Posts: 851
Def not a vacuum leak got those taken care of just hung up phone with frpp tech and he said sounds lile a bad ground because it runs strong and idles great unless moving and warm so being i just ordered whole new ignition set up. Im gonna go back and look at all my grounds too
captain78 is offline   Reply With Quote
Old 09-24-2013, 01:01 PM   #17
Staff
Regular
Staff
 
scottydsntknow's Avatar
 
Join Date: Apr 2013
Location: JB MDL
Region: New Jersey
Posts: 16,610
That's always the first thing you should check. The main grounding strap goes from the left motor mount to the frame and ALWAYS gets crudded up and corroded. Even if it looks ok I'd replace it with a 4 gauge battery cable and then add another one to the passenger's side.
__________________
2000 Mustang GT Steeda #0048

Just because I give you advice, doesn't mean I know more than you. Its just means I've done more stupid ****.
scottydsntknow is offline   Reply With Quote
Old 09-24-2013, 01:11 PM   #18
Registered Member
Regular
 
captain78's Avatar
 
Join Date: Dec 2011
Region: Louisiana
Posts: 851
Well i have brand new 0gauge ground plus little ground to back of eng

---------- Post added at 01:11 PM ---------- Previous post was at 01:09 PM ----------

But dosnt mean it couldnt have come loose
captain78 is offline   Reply With Quote
Old 09-25-2013, 10:16 AM   #19
Registered Member
Regular
 
351stroker's Avatar
 
Join Date: Jun 2013
Location: The Pas, Mb
Region: Canada
Posts: 443
Hey, maybe that's what's with mine.... Even alt reads a little low bit when I put meter in it says charging is good. But damn thing seems to always want to stall out when I put clutch in. One more thing to check when I get it into the shop.
351stroker is offline   Reply With Quote
Reply

Lower Navigation
Go Back   Mustang Evolution > 1979-2015 Mustang GT || Tech and Talk > 1979-1995 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



09:05 AM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2017, 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.