1994 Ford Ranger Q&A
1994 Ford Ranger Question: coil pack testing
How do you test the primary circuit on the coil packs? 1994 2.3L - Visitor
get a wiring diagram and look at the voltage. you need power to the coil first. then you need resistance across the 2 primary terminals. that spec is available in a manual or on alldata or mitchel. then the return or other wire goes back to the ecm and is gorunded when commanded . Roy - mastertech6371
coil and computer has been changed. but still no fire. this is a friends truck that he wants me to fix for him. that's all the info i got.
new plugs , new wires , coil pack less than 6 months old
i have a 1990 ford ranger with 4.0 v-6 recently put in head gaskets and upper half gaskets, plugs, wires, fuel filter, checked fuel pressure at schrader valve and it stays between 30 and 40 psi. tr...
I need to replace it due to miss firing problems that code readers can't detect,and programers can't fix!Is it located under the hood ,or in the front interior area?