1994 Ford Bronco & F-Series Spark Plug Wire Routing Diagram - LH & RH Banks
Reference · 1992-1996 BroncoAll 101 manual pages
Manual figure showing 1994 Bronco/F-Series spark plug wiring assemblies, separators, T-studs, and vacuum harness retainers.
Part of 1992-1996 Ford Bronco Manual Pages
This document is a factory-style illustration showing the spark plug wire routing for 1994 Ford Bronco and F-Series vehicles. It contains two main diagrams: the upper diagram depicts the left-hand (LH) rocker arm cover with the -12281- (LH) spark plug wiring assembly, showing routing of wires #5, #6, #7, and #8 through a separator mounted on a T-stud. The lower diagram shows the right-hand (RH) rocker arm cover with the -12280- (RH) spark plug wiring assembly, routing wires #1 through #4 through separators. A detail (View A) shows the -14A594- vacuum harness retainer used in two places on a rocker cover T-stud. Key installation notes include: the #7 spark plug boot and wire seal area must maintain 3/4 inch clearance to the oil level indicator tube and bracket; separators are installed on the T-stud located on the rocker arm cover until retained; and the angled termination on the spark plug end of the ignition harness is to be installed in an approximate vertical position. Drawing number 94C52227 appears at the bottom. This is useful for anyone replacing or correctly re-routing spark plug wires on these trucks.
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Frequently asked questions
- What is the correct spark plug wire routing for a 1994 Ford Bronco or F-Series?
- Per this diagram, wires #5-#8 route along the LH rocker arm cover via the -12281- LH spark plug wiring assembly through a separator on a T-stud, and wires #1-#4 route along the RH rocker arm cover via the -12280- RH spark plug wiring assembly through separators.
- How much clearance must the #7 spark plug boot have from the oil level indicator tube?
- The #7 spark plug boot and wire seal area must maintain 3/4 inch clearance to the oil level indicator tube and bracket.
- Where are the spark plug wire separators installed?
- The note states to install the separator on the T-stud located on the rocker arm cover until retained.
- How should the spark plug end of the ignition harness be oriented?
- The angled termination on the spark plug end of the ignition harness is to be installed in an approximate vertical position.
- What part numbers appear on this diagram?
- -12281- (LH spark plug wiring assembly), -12280- (RH spark plug wiring assembly), -14A594- (vacuum harness retainer, 2 places), and drawing number 94C52227.
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