Go Back   Ford Mustang Forums > Mustang > 2.3 and SVO Mustang > 2.3L 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.

Introductions| Mustang Lounge | 2.3L Talk | 2.3L Tech | Mustang Tech | Tech | Racing | Regional

Reply   Post New Thread
Unread 12-10-2012   #1 (permalink)
seif5034 is offline Apprentice

2.3L Member


Joined: Jan 2012
Posts: 102 Threads: 17
 seif5034's Country Flag  View seif5034's 2 photos
Ft. Riley   Kansas
seif5034 is on a distinguished road
Default is this a bad coil?

I think I may have old/bad coil packs.

My car is a 1993 LX 2.3L

I changed plugs and wires last winter.

My car is somewhat hard to start normally and sometimes at stoplights it'll miss and almost stall on me. Most of my driving is highway so it hasn't been a high priority.

The weather dropped to single digits last night and this morning my car wouldn't start. It was cranking kinda slow, so I jumped it to my F150. No real change.

While cranking it is only igniting every now and then.

I can hear the fuel pump kicking on and my pressure regulator checks out OK.

Pulled a plug from Pass. side and the spark is Orange (weak)?

Is there any way to test a coil pack with a multimeter?
__________________
1993 foxbody 2.3L na Auto
seif5034 is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Sponsored Links
Advertisement
 
Unread 12-10-2012   #2 (permalink)
Kirby is offline Apprentice

5.0L Member


Joined: Aug 2008
Posts: 116 Threads: 36
 Kirby's Country Flag
Monroe   Washington
Kirby is on a distinguished road
Default

Remove your coil pack.

Check the specs of your car in a service manual to find out what the primary and secondary range of resistances are. If you don't know, just write down all of your numbers and see if one is way off.

Turn on your meter and touch the center prong on the coil pack electrical connector with one of the meter test leads, and touch the corresponding coil prong on the electrical connector with the other test lead, this is the primary resistance.

Now touch the spark plug wire terminals on one of the coils with the meter leads. This checks the secondary resistance.

If any numbers are way off in their similar sets, its bad. Secondary results will most likely be in thousands of ohms, while the primary will realistically be under 10 ohms.
Kirby is offline  
Digg this Post!Add Post to del.icio.usBookmark Post in TechnoratiTweet this Post!
Reply With Quote
Unread 12-11-2012   #3 (permalink)
seif5034 is offline Apprentice

2.3L Member


Joined: Jan 2012
Posts: 102 Threads: 17
 seif5034's Country Flag  View seif5034's 2 photos
Ft. Riley   Kansas
seif5034 is on a distinguished road
Default Thanks Kirby

Turns out it was a multiple fault. my primary ignition coil was bad & the plug wires on cyl 2&3 were switched. I'm nearly 100% positive my local shop did that crap to create "repeat buisness". I can't stand taking my cars to shops!!
__________________
1993 foxbody 2.3L na Auto
seif5034 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

Search Engine Friendly URLs by vBSEO 3.5.2

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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172