Normal range for ignition coils? - Taurus Car Club of America : Ford Taurus Forum
 1Likes
  • 1 Post By Jeff K
 
LinkBack Thread Tools
post #1 of 6 (permalink) Old 08-10-2017, 07:05 PM Thread Starter
Junior Member
 
Join Date: Sep 2016
Location: Ottawa
Chapter: Eastern Canada
Year: 2002
Model: Ford Taurus
Engine: 3.0L 12v Vulcan V6
Posts: 18
Rep Power: 0
 
Trader Score: 0 reviews
Normal range for ignition coils?

Hello,

I can't find this anywhere on the internet. Does anyone know the normal range for primary and secondary ignition coil resistance for a 2002 Ford Taurus SE, OHV, 12V?

I'm getting 1.3, 1.3, 0.8. And 11.8, 11.9, 11.7.

Are these ranges normal?

Thank you,

sk3k in Ottawa
sk3k is offline  
Sponsored Links
Advertisement
 
post #2 of 6 (permalink) Old 08-10-2017, 08:23 PM
Play Nice or Don't Play

 
jag1959's Avatar
 
Join Date: Jun 2011
Chapter: Northeast
Year: 1998
Model: Ford Taurus SHO
Engine: 3.4L Yamaha V8
Posts: 14,732
Rep Power: 120
       
Trader Score: 0 reviews
Primary should be .5 ohms and the secondary should be 13600 ohms. Keep in mind measuring resistance under an ohm with the inherent +/- variance due to the contact resistance of the average DMM is iffy. Usually the issue with coil packs are cracks, some so small that only traces of arcing gave them away. I've had fissures so small that only misting the pack with water while running gave evidence of them

Last edited by jag1959; 08-10-2017 at 08:28 PM.
jag1959 is offline  
post #3 of 6 (permalink) Old 08-10-2017, 08:38 PM
Crazy Devoted Member
 
Join Date: Jan 2010
Location: North Canton, Ohio
Chapter: Midwest
Year: 2006
Model: Ford Taurus
Engine: 3.0L 12v Vulcan V6
Posts: 6,445
Rep Power: 64
    
Trader Score: 0 reviews
I have had a coil throw a primary coil problem P0351 code only after months of a single stumble on a shift at 45 mph. All primary resistances were in your range so you wouldn't expect an issue. It is also effected by heating of the coil from current flow and ambient temperature.
Automender12345 is offline  
 
post #4 of 6 (permalink) Old 08-11-2017, 08:19 AM
Technical Advisor
 
Join Date: Feb 2007
Location: Milwaukee, WI
Chapter: Midwest
Year: 2005
Model: Ford Taurus
Engine: 3.0L 24v Duratec V6
Posts: 7,543
Rep Power: 87
     
Trader Score: 0 reviews
Resistance tells you almost nothing as dielectric breakdown (arcing) issues will not show up with a resistance test. Resistances can check out in spec but coils can still be bad.
sheila likes this.

05 Taurus SEL Duratec - my daily driver
04 Taurus SES Duratec - wifes car - TOTALED
06 Taurus SE Vulcan - wifes new ride
95 Taurus GL Vulcan winter car
Toy #1 - 86 Tbird 5.0 (original owner) - LOTS of mods
Toy #2 - 88 Tbird Turbo Coupe - LOTS of mods
67 Honda 450 Super Sport - completely customized
Jeff K is offline  
post #5 of 6 (permalink) Old 08-11-2017, 09:37 AM
Crazy Devoted Member
 
Join Date: Jan 2010
Location: North Canton, Ohio
Chapter: Midwest
Year: 2006
Model: Ford Taurus
Engine: 3.0L 12v Vulcan V6
Posts: 6,445
Rep Power: 64
    
Trader Score: 0 reviews
^^^^ +1 Transformers are tested using devices that stress the windings while measuring parameters. One device is a Doble Tester.
Automender12345 is offline  
post #6 of 6 (permalink) Old 08-11-2017, 10:00 AM
Crazy Devoted Member
 
Join Date: Dec 2006
Chapter: Midwest
Year: 1998
Model: Mercury Sable
Engine: 3.0L 24v Duratec V6
Posts: 22,176
Rep Power: 112
     
Trader Score: 1 reviews
^+1 with Jeff. I've had several coils over the years test in spec, yet fail under load.
sheila is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Taurus Car Club of America : Ford Taurus Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Is this normal..... Dracolumina Maintenance and Repair 14 08-07-2016 10:49 PM
Car running warmer than normal Kghow2000 Maintenance and Repair 11 05-04-2014 06:14 PM
Digital Transmission Range Sensor on 99 Taurus BryanCookson Engine and Drivetrain 10 01-16-2014 01:53 PM
Is it normal if Braking Shakes the Whole Engine? azure Maintenance and Repair 20 12-30-2013 11:39 PM
New Rear Struts & Cargo Coils Installed + Some Thoughts Jeff93and99 Maintenance and Repair 9 06-28-2013 08:40 AM

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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome