Ford Ranchero Ignition Lock Cylinder Guide for 1970-1979 Models
Don't let a worn-out ignition lock cylinder leave your classic Ranchero stranded.
- Symptoms like a sticky key or a no-crank condition are clear signs the ignition lock cylinder is failing.
- Aftermarket parts from brands like Standard Ignition and Dorman are the primary, reliable options for this repair.
- This is a simple DIY job for most owners, requiring minimal tools and less than an hour of time.
- Verify the part fits your specific year, as there are differences between the 1970-71, 1972-76, and 1977-79 generations.
Signs of a Failing Ignition Lock Cylinder
When your Ranchero's ignition lock cylinder starts to fail, it gives you a few clear warnings. Ignoring them can leave you stranded. Here’s what to look for:
- Key is Hard to Turn or Gets Stuck: This is the most common symptom. Years of use wear down the internal tumblers, causing the key to bind or feel gritty. You might have to jiggle the key to get it to turn.
- Engine Won't Crank: You turn the key to the 'Start' position, and nothing happens. The dashboard lights might come on, but the starter doesn't engage. This happens when the worn cylinder fails to properly activate the ignition switch.
- Key Won't Go In or Come Out: A worn or damaged cylinder can prevent the key from being inserted or removed smoothly. In some cases, the key can get stuck in one position.
- Key Doesn't Spring Back from 'Start': After the engine starts, the key should return to the 'On' position by itself. If it sticks in the 'Start' position, you'll hear a grinding noise as the starter stays engaged with the engine's flywheel. This can cause serious damage.
Choosing the Right Aftermarket Cylinder (OEM vs. Aftermarket)
For a vehicle from the 1970s, finding a new original equipment manufacturer (OEM) part from Ford is nearly impossible. These are considered "New Old Stock" (NOS) and are extremely rare and expensive. For this reason, aftermarket parts are the only practical choice for nearly all Ranchero owners. Aftermarket quality has improved significantly, and for a simple mechanical part like this, they offer excellent value.
Here’s a breakdown of the available brands:
- Standard Ignition (Standard Motor Products): Often considered a top-tier aftermarket brand, Standard parts are trusted by professional mechanics. They focus on meeting or exceeding original specifications with quality materials like brass tumblers and die-cast zinc cores. This is a reliable choice for a long-lasting repair.
- Dorman: Dorman is one of the largest and most well-known aftermarket suppliers. They provide a dependable, cost-effective solution that is widely available. While generally good, some users on forums have noted occasional fitment issues with plastic housings on different applications, but the core lock cylinder is typically solid.
- Replacement: This brand represents a budget-friendly option. These parts are designed to be a direct fit and function like the original, getting your vehicle back on the road without a big investment. They are a good choice for a vehicle that isn't a daily driver or for owners on a tight budget.
Cost Overview: 1970-1979 Ford Ranchero Ignition Lock Cylinder
| Part/Service | Estimated Cost |
|---|---|
| New Aftermarket Cylinder | $21 - $50 |
| New OEM (NOS) | $100+ (If found) |
| Shop Labor | $75 - $150 |
Pro Tip: Before starting this repair, disconnect the negative terminal on your battery. This prevents any accidental electrical shorts. Also, applying a small amount of graphite lubricant to the new cylinder before installation can ensure smooth operation for years to come.
Frequently Asked Questions (FAQ)
Is replacing the ignition lock cylinder a difficult job?
No, this is a very DIY-friendly job. For most 1970-1979 Ford models, the process is straightforward and can be done with basic hand tools in under an hour. The cylinder is typically held in the steering column by a small retaining pin.
What tools do I need to replace it?
You will need your ignition key and a small punch, a paperclip, or a small Allen key to depress the retaining pin. If you don't have the key, the old cylinder will likely need to be drilled out.
Will one part fit all 1970-1979 Rancheros?
Not always. There were variations across the years, especially between generations (1970-71, 1972-76, 1977-79). Some parts fit a wide range of years, while others are specific. Always verify the part fits your exact year before purchasing.
Do I need to replace my door locks too?
No. The new ignition lock cylinder will come with a new set of keys. This means your ignition key will be different from your door keys. If you want a single key for everything, a locksmith can re-key the new cylinder to match your original keys, but this adds cost.
What's the difference between the lock cylinder and the ignition switch?
The lock cylinder is the mechanical part your key goes into. The ignition switch is the electronic component that the cylinder activates. The switch is located further down the steering column and is connected to the cylinder by a metal rod. If you have electrical issues (like lights not working in 'accessory' mode) but the key turns fine, the problem might be the switch, not the cylinder.
Technical Specifications
Construction is typically die-cast zinc for the core with chrome or black finishes available. Aftermarket kits include a new lock cylinder and two new, coded keys. The part is purely mechanical; no programming is required.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.