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FORD BRONCO
-> IGNITION; plugs/wires, distributors, MSD, firing orders; switch & ignition actuator rod, TSBs...
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WELCOME to MIESK5's BIG BRONCO LINKS
This is a Ford Bronco, Truck & Van Technical, Parts & Vehicle Classifieds LINKS site developed by the MIESK5 Family and is not affiliated with the Ford Motor Company in any manner.
Although we initially developed this site for 78-96 Big Broncos, information in many Links also applies to Ford Trucks, Vans & Cars.
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System; Davis Unified Ignition (DUI), Duraspark, Thick Film Ignition (TFI), MSD, Jacobs, Crane
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351/400M Ignition Parts Reference w/Ford part numbers
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Ballast Resistor
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Coil
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Distributor - Gear, Spark Output (SPOUT) - See Ignition System; Thick Film Ignition (TFI) Section for Ignition Module, PIP, Stator, etc.
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Firing Order
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General Information
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Ignition Components, Wire & Cable , etc. Parts Catalog, Ford
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Spark Plug
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Spark Plug Wire; Routing TSBs
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Switch & Ignition Actuator Rod & TSBs
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Timing
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Troubleshooting
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Auto Repair Reference Center Repair Manual, Mostly Chilton; many local library's offer free online access for their members; just log-in w/your library Card # and password; incl. all Broncos, & many MAKES! 1951 to 2009; some years (85-96, I believe) include: FULL Technical Service Bulletins and Recalls, Labor Hours per repair (plug in appl info); Wiring Diagrams, Vacuum Diagrams (in DRIVEABILITY AND EMISSIONS CONTROLS Section), Specifications (torques, etc.) & Maintenance Intervals
Source: by arrc.epnet.com
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Chilton Manual for 66 - 81 Bronco, Scanned Copy
Source: by Chilton via broncocity.com
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EEC IV Strategies
Source: by Ford via miesk5 at broncolinks.com/gallery
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Electrical and Vacuum Troubleshooting Manual (EVTM) for an 86 (Partial)
Source: by Chris B (Blue, bronco boy) at telus.net
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Ignition Timing Vacuum Switch Depiction; The ignition timing vacuum switch is used on certain earlier models and through vacuum, signals the ignition module to retard spark timing. The amount of retard is controlled by two calibration resistors inside the switch assembly
Source: by Ford fordinstallersupport.com
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No Spark Troubleshooting, Overview & Operation in Thick Film Integrated-IV (TFI-IV); "...Ford calls this electronic ignition the Thick Film Integrated-IV (TFI-IV) ignition system. The TFI module is also known as the Ignition Control Module (ICM) which reports engine position and rpm to the PCM. The PCM then determines the proper spark timing and advance, and returns a reference signal to tell the TFI module to switch the coil, thereby creating a spark. The PCM used on these vehicles is referred to by Ford as the Electronic Engine Control-IV (EEC-IV) module..." most is applicable to Broncos, read more
Source: by therangerstation.com
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No Start Troubleshooting in a 90; "...First thing to check is wiring. Between the large posts of your starter relay (it's not a solenoid) should be a smaller post with a wire attached. This is the wire from your ignition switch through the park/neutral safety switch (Or clutch safety switch on a manual trans, or MLPS on a 90 with an E4OD) that turns the starter over. Check this wire for cracks, open insulation, or anything that could possibly cause an open circuit. Next, check your upper ignition actuator. Find the ignition rod (on top of the column, running from the steering wheel down to the ignition switch at the base of the column) and make sure it's moving back and forth when you turn the key, through all positions. If it is, your upper actuator is probably not the problem. Lastly, check your ignition switch (again, at the base of the column). Manually push the switch back and forth through the different positions. Push it all the way forward (or down) and see if it will engage the starter. If it does, then your ignition rod is probably bent, which can be remedied quite easily. & If it's an auto, try starting in neutral or while pulling up on the lever while it's in park. If that works, look to a park/neutral safety switch/MLPS. If it's a stick, check the clutch switch. You could try jumping from hot to the small terminal on the starter relay to test it's operation. Sometimes new ones are bad out of the box. If it won't turn over when jumped to the small terminal, you'll know that it's a starter relay issue (Bad part, bad ground; check to see if da relay is tight to inner fender with no corrosion because the relay's body is ground path via inner fender). If it does turns over jumped to the small terminal, then you'll be looking for something in the small circuit that includes the ignition switch & the park/neutral safety switch (NSS) Or clutch safety switch on a manual trans, or MLPS on a 90 with an E4OD. There should be 12v running from the ignition switch, thru the NSS/MLPS, to the small terminal on the starter relay. Disconnect the small wire to the starter relay (So it doesn't start by surprise, I'd pull the coil wire too). With someone holding the key in the start position, you should be able to read 12v between any point on that small circuit & ground. When you find where you lose 12v, then you'll know where the issue is..."; MIESK5 EDIT; changed a few terms; Also, see Starter (@) Relay Jumping Image in 92-96 @ http://www.broncolinks.com/gallery_images/StarterRelayJumpinin92-96.JPG - Sewiw shows a remote start switch's Jumpers; you can use a reg. small jumper wire
Source: by BigUgly88EB and ElKabong (Ken, El Kabong) at FSB
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Repair Locations Grid & Coding, Bronco; used to pin-point location of a repair or component in a vehicle
Source: by Ford via Steve83 (Steve, That dirty old truck) at SuperMotors.net
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Sixlitre Tune-Up Info (scroll through pages to view more tips, especially on Page 5); "...Yes, stock timing is 10 degrees, I find optimum timing to be almost exactly 13.5 but you can play around until you notice ping and then back off 2 degrees if you want to, and/or tune by vacuum if you care to. Cheapest Autolites money can buy, nuthin' platinum, nuthin' fancy, just set out to .055 gap..."
Source: by Sixlitre (Malcolm H, Eddie Bauer) at FSB
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Testing & Servicing, Chapter 11, from Ford Fuel Injection and Electronic Engine Control: How to Understand, Service and Modify, 1988-1993
Source: by Charles O. Probst via yunost.ru
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Tuning for Performance & Economy, Chapter 9, from Ford Fuel Injection and Electronic Engine Control: How to Understand, Service and Modify, 1988-1993
Source: by Charles O. Probst via yunost.ru
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Wiring Diagrams (Partial, Bronco similar) for F 150 in 86, 89, 91 & 95; EEC, Start/Ignition, EFI/Fuel System, Emissions, E4OD, AOD/C6 (+ clutch interlock switch), etc. from Electrical & Vacuum Troubleshooting Manual (EVTM)
Source: by Ford via Ryan M (Fireguy50) at fordfuelinjection.com
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