Go Back   Ford Mustang Forums > Mustang > 5.0 Mustang > 94-95 Tech

Welcome to our Mustang forums where Mustangers come together to hang out, discuss and enjoy their favorite Mustang hobby with fellow Mustang enthusiasts. We invite everyone to read, post, and enjoy our Mustang forum as well as the many other sections of our site.

You are currently viewing our forums as a guest. By joining our community you gain access to post topics, communicate with members, upload your photos and access many other special features. Registration is fast, simple and free so why wait, join our Mustang community today! If you have any problems with registration or your account login, please contact support.

1994-1995 5.0 Mustang SN95 Tech Forum

5.0L Talk | 5.0L Tech | 94-95 Tech | 1979-1993   1994   1995   Upload Pictures | Timeslips | Power Adders | Mustang Tech 


Reply   Post New Thread
Unread 03-10-2007   #1 (permalink)
87stang 5.0 is offline Made Member

5.0L Member


Joined: Apr 2006
Posts: 1,392 Threads: 121
 87stang 5.0's Country Flag  View 87stang 5.0's 59 photos
Bellevue   Washington
87stang 5.0 is on a distinguished road
Send a message via AIM to 87stang 5.0
Question 1994 cobra poor idle quality, coil going bad?

i have a 94 cobra i just put a new cap, rotor, autolite Xp preformance plugs gaped at .55, 180 thermostat and a new rad cap, now the car idles rough, before it had a little miss but you could hardley notice it, sometimes the rpms wil go up and down from 800-900 then it will even out a little, any suggestions?
__________________
New addition: 1986 GT t-tops 5.0L 5speed, intake, exhaust,9mm plug wires

1987 Mustang LX 5.0 5-speed,white with smoke grey interior,MAF conversion,Perfection clutch(valeo)2.5inch Ravin exhaust, subframe connectors, ported lower intake & heads=SOLD
87stang 5.0 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Sponsored Links
Advertisement
 
Unread 03-10-2007   #2 (permalink)
adriano_917 is offline PONY Member

5.0L Member


Joined: Aug 2006
Posts: 867 Threads: 96
 adriano_917's Country Flag  View adriano_917's 38 photos
El Paso   Texas
adriano_917 is on a distinguished road
Default

ha!!! welcome to my world.
__________________
Trickflow street heat intakes/Flowmaster american thunder/Pacesetter off road H-pipe/FRPP 9mm spark plug wires/MAC headers/C&L cold air intake/C&L 76mm MAF/K&N air filter/MSD 6AL /MSD coil blaster ignition/MSD cap and rotor/3.73 motive gears/BBK 70mm tb/Eibach pro-kit springs/ Kirban fuel reagulator/Eibach sway bars/MM steering solid shaft/04 Cobra A-arms/AGR rack/UPR bumpsteers.
adriano_917 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 03-10-2007   #3 (permalink)
adriano_917 is offline PONY Member

5.0L Member


Joined: Aug 2006
Posts: 867 Threads: 96
 adriano_917's Country Flag  View adriano_917's 38 photos
El Paso   Texas
adriano_917 is on a distinguished road
Default

my car wont start I also have a brand new cap and rotor from MSD and the blaster coil ignition and its not making spark, plus the damn IAC is also making the idle very wierd, but try to buy it from FORD for only 166$
__________________
Trickflow street heat intakes/Flowmaster american thunder/Pacesetter off road H-pipe/FRPP 9mm spark plug wires/MAC headers/C&L cold air intake/C&L 76mm MAF/K&N air filter/MSD 6AL /MSD coil blaster ignition/MSD cap and rotor/3.73 motive gears/BBK 70mm tb/Eibach pro-kit springs/ Kirban fuel reagulator/Eibach sway bars/MM steering solid shaft/04 Cobra A-arms/AGR rack/UPR bumpsteers.
adriano_917 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 03-13-2007   #4 (permalink)
87stang 5.0 is offline Made Member

5.0L Member


Joined: Apr 2006
Posts: 1,392 Threads: 121
 87stang 5.0's Country Flag  View 87stang 5.0's 59 photos
Bellevue   Washington
87stang 5.0 is on a distinguished road
Send a message via AIM to 87stang 5.0
Default

could it be the coil?, is there any way to test the coil, also i just bought a MSD blaster coil for my truck(94' 460ci efi) could i hook it up to my cobra and then see if the coil is the problem?
__________________
New addition: 1986 GT t-tops 5.0L 5speed, intake, exhaust,9mm plug wires

1987 Mustang LX 5.0 5-speed,white with smoke grey interior,MAF conversion,Perfection clutch(valeo)2.5inch Ravin exhaust, subframe connectors, ported lower intake & heads=SOLD
87stang 5.0 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 03-13-2007   #5 (permalink)
rjdcobra is offline Apprentice

4.6L Member


Joined: Dec 2006
Posts: 84 Threads: 37
 rjdcobra's Country Flag
Plano   Texas
rjdcobra is on a distinguished road
Send a message via AIM to rjdcobra
Default

From my knowledge im thinking bad coils only really effect starting conditions and if you have no start conditions it might also be a ignition module or the stator inside the distributor.. as far as idle surging i bought one of those iac spacer for my 94 cobra and it idles great with a aftermarket cam in it. no surging
rjdcobra is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 03-17-2007   #6 (permalink)
Aussie is offline Rookie

5.0L Member


Joined: Dec 2006
Posts: 34 Threads: 5
 Aussie's Country Flag  View Aussie's 6 photos
Perth
Aussie is on a distinguished road
Default

Have you checked the TPS voltage reading? It should be .98 volt. Recently I upped the idle and it threw out my TPS setting.
Aussie is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 03-17-2007   #7 (permalink)
87stang 5.0 is offline Made Member

5.0L Member


Joined: Apr 2006
Posts: 1,392 Threads: 121
 87stang 5.0's Country Flag  View 87stang 5.0's 59 photos
Bellevue   Washington
87stang 5.0 is on a distinguished road
Send a message via AIM to 87stang 5.0
Default

yes i put it at .987, still no change, do you think it could be the balancer?im begining to think it could be, but still the idle isnt steady
__________________
New addition: 1986 GT t-tops 5.0L 5speed, intake, exhaust,9mm plug wires

1987 Mustang LX 5.0 5-speed,white with smoke grey interior,MAF conversion,Perfection clutch(valeo)2.5inch Ravin exhaust, subframe connectors, ported lower intake & heads=SOLD
87stang 5.0 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 03-17-2007   #8 (permalink)
det289 is offline Rookie

Classic Member
5.0L Member


Joined: Feb 2007
Posts: 31 Threads: 6
 det289's Country Flag  View det289's 5 photos  View det289's HomePage
Rio Rancho   New Mexico
det289 is on a distinguished road
Default

Try and check the Ignition Control Module, and possibly even the distributor...
det289 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 03-17-2007   #9 (permalink)
87stang 5.0 is offline Made Member

5.0L Member


Joined: Apr 2006
Posts: 1,392 Threads: 121
 87stang 5.0's Country Flag  View 87stang 5.0's 59 photos
Bellevue   Washington
87stang 5.0 is on a distinguished road
Send a message via AIM to 87stang 5.0
Default

how can i check the ignition control module? i put a new rotor and cap on the distributor
__________________
New addition: 1986 GT t-tops 5.0L 5speed, intake, exhaust,9mm plug wires

1987 Mustang LX 5.0 5-speed,white with smoke grey interior,MAF conversion,Perfection clutch(valeo)2.5inch Ravin exhaust, subframe connectors, ported lower intake & heads=SOLD
87stang 5.0 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Sponsored Links
Advertisement
 
Reply   Post New Thread



Thread Tools



Mustang Photos
Mustang Links    Top Sites    RSS    Link To Us    Add to Favorites    Archive    Terms of Use    Site Rules    Privacy    Contact    Sponsors    Advertise   
AllFordMustangs is not affiliated with or endorsed by Ford Motor Company. ©Copyright 2002-2011 All Auto Enthusiasts Network

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162