Here are the most likely reasons for this discrepancy:
* Incorrect Installation: This is the most probable cause. Someone may have installed the coil incorrectly during a repair or replacement. Double-check the wiring harness connections to ensure they match the diagram in your manual *precisely*. Pay close attention to the coil's orientation relative to the distributor (if applicable) or the cylinder head.
* Wiring Error: A wiring harness issue is possible, even if the coil is physically in the "correct" location. A mis-wired coil will cause the same problem as a physically misplaced coil. Again, meticulously compare your wiring to the manual's diagram.
* Misprinted or Incorrect Manual: While less likely, it's possible the manual itself contains an error. Consult multiple online resources or a trusted Ford mechanic to confirm the correct coil placement and wiring diagram.
* Aftermarket Coil: If you've installed an aftermarket ignition coil, it might have different wiring requirements. Consult the aftermarket coil's instructions.
What to do:
1. Verify the Manual: Ensure you're looking at the correct manual for your specific year and engine model of Ford Ranger.
2. Visual Inspection: Carefully examine the ignition coil and its wiring connections, comparing them to the diagram in your manual. Look for any obvious misconnections or damaged wires.
3. Consult a Mechanic: If you're not comfortable working on your vehicle's electrical system, it's best to take it to a qualified mechanic. Incorrect ignition timing can cause serious engine damage.
4. Online Forums: Search online forums specific to your Ford Ranger's year and model. Someone else may have encountered this issue and posted a solution.
Do not attempt to start the engine with the coil 180 degrees off. Doing so will likely cause significant engine damage.
