1965-1970 Ford LTD Ignition Lock Cylinder Replacement and Diagnosis
If your key is sticking or your classic LTD won't start, the ignition lock cylinder is a common and easy-to-fix culprit.
- A faulty ignition lock cylinder is a common point of failure on classic Fords, causing starting issues and the risk of being stranded.
- Replacement is a very simple DIY job that can be done in under 30 minutes with a single tool.
- Aftermarket brands like Standard Ignition and Dorman are the standard, reliable choices as original Ford parts are no longer made.
- A new lock cylinder will come with a new set of keys; your original keys will no longer work in the ignition.
Is Your Ignition Lock Cylinder Failing?
After decades of use, the small metal tumblers inside the ignition lock cylinder wear down. This wear can cause a variety of frustrating symptoms. If you're experiencing any of these issues, a new lock cylinder is likely the solution.
- Key is difficult to insert or remove: You have to jiggle the key to get it in or out of the ignition.
- Key won't turn: The key goes in but refuses to turn to the 'ON' or 'START' position, leaving you stranded.
- Ignition feels loose or sloppy: The key turns with very little resistance and feels wobbly.
- Car won't start, but lights work: You can turn the key, but the engine doesn't crank. This can sometimes be the cylinder not fully engaging the ignition switch behind it.
Choosing the Right Aftermarket Part
For a classic vehicle like the 1965-1970 LTD, finding a brand-new original Ford (OEM) part is nearly impossible. The market consists of New Old Stock (NOS) parts, which are rare and expensive, and new aftermarket parts, which are the practical choice for most owners. Aftermarket brands offer quality, affordable replacements that meet or exceed the original specifications.
Aftermarket Brand Tiers
- Standard Ignition: Often considered a premium aftermarket brand, Standard Motor Products provides high-quality components trusted by professional mechanics. They are known for using durable materials like brass tumblers and ensuring a precise, OE-like fit and smooth operation. This is a top choice for owners who want the best available replacement.
- Dorman: Dorman is a well-known brand that offers a cost-effective and reliable solution. They are one of the largest suppliers of aftermarket parts in North America and are a dependable choice for a DIY repair.
Cost of Aftermarket Ignition Lock Cylinders (1965-1970 Ford LTD)
| Brand Type | Price Range |
|---|---|
| Standard Ignition | $28.00 - $36.00 |
| Dorman | $21.00 - $30.00 |
Known Issues, Recalls, and Service Bulletins
There are no active recalls or Technical Service Bulletins (TSBs) from the NHTSA related to the ignition lock cylinder for the 1965-1970 Ford LTD. Any issues you experience are due to the normal wear and tear of a 50+ year old mechanical part.
How to Replace the Ignition Lock Cylinder
Replacing the cylinder on this generation of Ford is a simple job that most owners can do in their driveway in under 30 minutes. It does not require removing the steering wheel on most models.
Pro Tip: You must have a key that can turn in the cylinder to remove it. If your key will not turn at all, you may need to have the cylinder drilled out by a locksmith.
- Disconnect the battery: As a safety precaution, disconnect the negative battery terminal.
- Insert the key: Place your ignition key into the lock cylinder.
- Turn to 'ON': Turn the key clockwise to the 'ON' or 'RUN' position (where the radio and accessories would turn on). Do not start the engine. This is the only position where the cylinder can be removed.
- Depress the retaining pin: Look for a small hole on the underside of the steering column housing, just below the lock cylinder. Insert a small punch, a nail, or a stiff paperclip into this hole and press firmly upwards. You will feel a small spring-loaded pin depress.
- Remove the old cylinder: While holding the pin in, pull the lock cylinder straight out of the steering column with the key.
- Install the new cylinder: Take your new lock cylinder, insert its new key, and turn it to the 'ON' position. Slide it into the housing until it clicks into place. Turn the key back to the 'OFF' position and remove it.
- Test the new cylinder: Reconnect the battery and test the new lock. Ensure it turns smoothly through all positions (ACC, OFF, ON, START) and that the key can be removed only in the 'OFF' position.
Frequently Asked Questions
Can I use my original keys with the new lock cylinder?
No. A new ignition lock cylinder is a security device and comes with a new, unique set of keys. You cannot re-key the new cylinder to match your old keys.
Is the ignition lock cylinder the same as the ignition switch?
No. The lock cylinder is the mechanical part your key goes into. The ignition switch is the electronic part behind it that sends power to the vehicle. They are separate parts that can be replaced independently. If your key turns but you still have electrical issues, the ignition switch might be the problem.
What tools do I need for this job?
You only need a small punch, nail, or a similar thin, stiff tool to depress the retaining pin. A wrench to disconnect the battery is also recommended.
My key is stuck and won't turn at all. What do I do?
If the key is completely seized, you cannot use the standard removal method. The internal tumblers are likely jammed or broken. In this case, the cylinder will need to be drilled out. This is a job best left to an automotive locksmith to avoid damaging the steering column housing.
Technical Specifications
OEM Part Numbers: C9AZ-11582A
Mechanical lock cylinder with two keys. No transponder or chip.
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.
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- Is Your Ignition Lock Cylinder Failing?
- Choosing the Right Aftermarket Part
- Aftermarket Brand Tiers
- Cost of Aftermarket Ignition Lock Cylinders (1965-1970 Ford LTD)
- Known Issues, Recalls, and Service Bulletins
- How to Replace the Ignition Lock Cylinder
- Frequently Asked Questions
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