Ford Ranger Forum - Forums for Ford Ranger enthusiasts!

Go Back   Ford Ranger Forum - Forums for Ford Ranger enthusiasts! > >
Forgot Password? Join Us!

Welcome to Ford Ranger Forum

Reply
 
Thread Tools Search this Thread

  #1  
Old 12-31-2010, 11:50 AM
Gum85 Gum85 is offline
Like the Forums
 
Join Date: Dec 2010
Posts: 31
Default How to test the secondary ignition coils resistance on a 97 ford ranger 4cyl?

I tested the primary coil resistance using a digital multimeter set on Ohms. One of the primary coils gave me a 1.0 Ohm reading and the other primary coil gave me a 0.9 reading which according to my manual is within spec. My problem is I don't know how to test the secondary coils. Do I need any special tools or can I use the digital multimeter I have?
This is what the manual says on checking the secondary coils resistance- Measure using an Ohmmeter and note the resistance between each corresponding coil terminal and the two spark plug wire towers on the ignition coil. The coil terminals and plug wires are grouped as follows
Terminal 1 (coil 2)-spark plugs 2 and 3
Terminal 3 (coil 1)-spark plugs 1 and 4
Terminal 1 (coil 4)-spark plugs 2 and 3
Terminal 3 (coil 3)-spark plugs 1 and 4
I am not an electrician so I don't really understand any of this. What is a spark plug wire tower? Where do I need to place the positive and negative leads to get these readings? Every time I try to test it I get a 0.0 reading so I know I'm doing something wrong. Please help me figure this out. Thanks
Reply With Quote
  #2  
Old 01-18-2011, 05:57 PM
Lou58 Lou58 is offline
Learning to use the forums
 
Join Date: Dec 2010
Posts: 7
Default Re: How to test the secondary ignition coils resistance on a 97 ford ranger 4cyl?

Pull the wires from the coil 1-4 2-3 test for i beleave 13 to 15 ohms . stick on end of the meter in each plug wire hole 1-4 take a reading then 2-3 take a reading do this on both coils.
__________________
LOU58
Reply With Quote
  #3  
Old 01-19-2011, 07:53 AM
Gum85 Gum85 is offline
Like the Forums
 
Join Date: Dec 2010
Posts: 31
Default Re: How to test the secondary ignition coils resistance on a 97 ford ranger 4cyl?

Thanks, I took it in to a professional and had them tested and they are working properly.
Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
1985 Ford Ranger 4x4 ignition problem WildlandFirefighter Electrical Tech 1 12-12-2010 10:47 AM
FNG! 1994 Ford Ranger 4cyl HI! 94Ford Introduce Yourself 7 10-17-2010 04:41 PM
New Owner, 08, reg cab, 4x2, 4cyl, FORD F*CKIN RANGER!! Renager Introduce Yourself 17 08-08-2010 01:41 AM
ford ranger 4cyl 1998 IVAN Off Topic 1 02-17-2010 07:18 PM
I have a 94 ford 4cyl ranger that is geared too high. It spins the tires and r s Drivetrain Tech 2 11-30-2008 03:30 AM