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I checked the resistance of the coil, @ .9-1.3 for primary and @ 13 for secondary. These values fall in line with the manual.
I'm not sure how to check antitheft.
IFS appears to be ok
No apparent arcing
Aftermarket 2 way radio?
I've been out of town, I was down in the mojave desert riding my Husky, now I'm back dealing with my Ranger. I'm a maint. mechanic for a large municipal water treatment plant in Oakland Ca. I know little about automotive mechanics, but feel I should be able to handle this problem. I did borrow a clamp on amp meter and checked the plug wires, I know you said to check the primary. Could you be more specific on the procedure?