Stang' is running rough - Mustang Evolution

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



Reply
 
Thread Tools Search this Thread
Please support our sponsors and let them know you heard about them here!
Old 01-19-2013, 10:29 PM   #1
Registered User
Newbie
 
philbo9's Avatar
 
Join Date: Jan 2013
Location: Forest
Region: Virginia
Posts: 8
Stang' is running rough

I recently installed a new head unit into my 04 mach 1 about a month ago. Ever since then my car has been acting strange. It will idle at around 1300 rpms and drop way down to 200 rpms and sometimes just turn all the way off, also while i am accelerating the car is hesitant and feels as if the whole engines timing is off. I dont know if it is coincidence that these problems started right after i put the new radio in or not, all I know is it was running like a dream before and now its not. I was just wondering what some of the causes could be for this problem or if it is indeed related to the head unit instillation.
philbo9 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 01-19-2013, 10:37 PM   #2
Registered Member
Regular
 
Rosco's Avatar
 
Join Date: Jan 2011
Location: La Verne
Region: California
Posts: 535
Did you install the head unit or did a shop? Check lines in the engine. If you got it installed they might have disconnected a vacuum line.
__________________
1998 Bright Atlantic Cobra - 3:73's, BBK ls, Pro 5.0, 96 Cobra STB, Borla XR-1 Catback, Custom Catch Can, Spec clutch, MM Firewall adj, FRPP wires, RSD, Spoiler delete, 245/275 BF Goodrich g sports on chrome 95 cobra r's
1998 V6 Mustang : SOLD!
Rosco is offline   Reply With Quote
Old 01-19-2013, 10:38 PM   #3
Registered Member
Regular
 
BigB227's Avatar
 
Join Date: Aug 2011
Location: West Palm Beach
Region: Florida
Posts: 1,120
Check alternator, battery, COPs and spark plugs and move on from there
BigB227 is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 01-19-2013, 11:15 PM   #4
Registered Member
Regular
 
1996mustang's Avatar
 
Join Date: Jun 2012
Location: Miami
Region: Florida
Posts: 1,013
Does it have engine codes? If so i would start there go to autozpne and get ur codes read free then post them up so we can help. Ps.....autozone isnt ase certified so i wouldnt really listen to them they may sell u something that wont fix the problem and may make it worse. I.e that coolant stop leak crap.....doeant work amd creates more problems like clogged water passages.
__________________
1996 Mustang GT, 17x9 front and 17x10.5 cobra r replica rims, 255/40/17 front 285/40/17 rear at the moment,
o/r x-pipe flow master 40 series dump downs, cai/ram intake, 75mm c&l throttle body and plenum, pi heads and intake swap, msd wires, stock gears, untuned at the moment, no dyno numbers for now.
1996mustang is offline   Reply With Quote
Old 01-20-2013, 09:00 AM   #5
Registered User
Newbie
 
philbo9's Avatar
 
Join Date: Jan 2013
Location: Forest
Region: Virginia
Posts: 8
@Rosco- I installed the head unit myself and all the vacuum lines are still intact.
@BigB227- I will check them today, thanks!
@1996Mustang- There is no check engine light at this point so I don't think there would be any codes.
philbo9 is offline   Reply With Quote
Old 01-20-2013, 02:53 PM   #6
Registered Member
Regular
 
jjsg09's Avatar
 
Join Date: Feb 2011
Region: Indiana
Posts: 1,224
Idle air control valve? Throttle position sensor? Check those
jjsg09 is offline   Reply With Quote
Old 01-20-2013, 03:34 PM   #7
Registered User
Newbie
 
philbo9's Avatar
 
Join Date: Jan 2013
Location: Forest
Region: Virginia
Posts: 8
I Put in a new throttle position sensor today and reset the battery. The idle is already running back to normal. I am going to put in new plugs as soon as I get the chance because the engine is still hesitating. What kind of plugs do y'all recommend?
philbo9 is offline   Reply With Quote
Old 01-20-2013, 03:48 PM   #8
Registered Member
Regular
 
jjsg09's Avatar
 
Join Date: Feb 2011
Region: Indiana
Posts: 1,224
Quote:
Originally Posted by philbo9 View Post
I Put in a new throttle position sensor today and reset the battery. The idle is already running back to normal. I am going to put in new plugs as soon as I get the chance because the engine is still hesitating. What kind of plugs do y'all recommend?
Always factory Motorcraft and don't change them when the engine is hot or even warm wait for it to be cool. You can possible damage threads in the spark plug holes if you don't wait.
jjsg09 is offline   Reply With Quote
Old 01-20-2013, 06:22 PM   #9
Registered User
Newbie
 
philbo9's Avatar
 
Join Date: Jan 2013
Location: Forest
Region: Virginia
Posts: 8
ok will do, thanks!
philbo9 is offline   Reply With Quote
Old 01-22-2013, 01:28 AM   #10
Registered Member
Regular
 
FordFan's Avatar
 
Join Date: Nov 2012
Region: Pennsylvania
Posts: 25
Check your oxygen sensors and your mass airflow sensor also, they control how the idle and acceleration respond.
FordFan is offline   Reply With Quote
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



01:55 AM


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.

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