1966 Oldsmobile Jetstar 88 Ignition Switch Guide
Don't let a faulty ignition switch keep your classic Jetstar 88 from starting; understand the symptoms and find the right replacement part.
- A failing ignition switch can cause dangerous stalling while driving, in addition to no-start problems.
- For a 1966 model, a new aftermarket part from a reputable brand like Standard Ignition is the most reliable and practical replacement option.
- The ignition switch is a separate electrical part from the mechanical lock cylinder where you insert your key.
- Replacement is a manageable DIY task for those with basic tools, but always disconnect the battery first.
Understanding Ignition Switch Failure in Your Jetstar 88
The ignition switch in a 1966 Oldsmobile is a robust mechanical component, but after decades of use, it's prone to failure. The internal electrical contacts can become worn, corroded, or damaged from heat, leading to a variety of frustrating and potentially dangerous electrical problems. Recognizing the signs of a failing switch is the first step to keeping your classic Oldsmobile reliable.
Symptoms of a Bad Ignition Switch
- Car Won't Start or Crank: You turn the key and nothing happens at all, or you only hear a single click. This often means the switch isn't sending power to the starter motor.
- Intermittent Stalling: This is a serious safety issue. A worn switch can momentarily lose contact and cut power to the ignition system, shutting the engine off while you're driving. This can happen when going over bumps or turning the wheel.
- Flickering Dashboard Lights: The warning lights on your dash may flicker, or you might notice accessories like the radio or heater fan cutting out. This indicates an inconsistent power supply from the switch.
- Key is Hard to Turn: If the key is difficult to turn or gets stuck, it could be an issue with the switch or the lock cylinder it connects to.
Safety First: Stalling Risk
An ignition switch that causes the engine to stall while driving is a critical safety hazard. A sudden loss of power will also cause you to lose power steering and power-assisted brakes, making the vehicle difficult to control. If you experience this symptom, it is not recommended to drive the vehicle until it is repaired.
Choosing the Right Aftermarket Ignition Switch
For a 1966 vehicle, finding a New Old Stock (NOS) OEM part is nearly impossible. The most practical solution is a new aftermarket part. Aftermarket parts are designed to meet or exceed the original specifications and are readily available.
- Standard Ignition (Standard Motor Products): This is a well-regarded brand in the aftermarket, especially for electrical components for classic American cars. They are known for using quality materials like copper alloy conductors and for testing their parts to ensure proper mechanical and electrical performance. For a classic like the Jetstar 88, Standard Ignition is a trusted and reliable choice.
Pro Tip: Before replacing the switch, always inspect the wiring and the electrical connector that plugs into it. Over time, resistance can build up and cause the connector to overheat, melt, or corrode. A new switch will not solve problems caused by a bad connector.
Estimated Replacement Costs
| Part Type | Estimated Cost |
|---|---|
| New Aftermarket (Standard Ignition) | $55.59 |
| Shop Labor | $100 - $200 |
| Total Estimated Cost | $155 - $255 |
Cost estimates are for informational purposes only and may vary based on your location and the specific repair shop.
Frequently Asked Questions
Is the ignition switch the same as the ignition lock cylinder?
No. The lock cylinder is the mechanical part your key goes into. The ignition switch is the separate electrical component that the lock cylinder operates. If your key is sticking or hard to turn, the lock cylinder is the likely problem. If you have electrical issues like stalling or a no-start condition, the ignition switch is the more probable cause.
Are there any recalls for the 1966 Jetstar 88 ignition switch?
No. There are no recalls from the National Highway Traffic Safety Administration (NHTSA) for the ignition switch on the 1966 Oldsmobile Jetstar 88. Failures are due to the part's age and normal wear and tear.
Can I replace the ignition switch myself?
Yes, this is a DIY-friendly job for someone with basic mechanical and electrical skills. The switch is typically located under the dashboard. The process involves disconnecting the battery, removing trim panels, unplugging the electrical connector, and unbolting the old switch. It is important to disconnect the battery first to prevent short circuits.
My car won't start. How do I know it's the ignition switch?
While a bad ignition switch is a common cause, other issues like a dead battery, a bad starter, or a faulty neutral safety switch can also cause a no-start condition. If you turn the key and hear absolutely nothing, the ignition switch is a strong suspect. If you hear a clicking sound, the problem is more likely the starter or battery. A simple test is to see if wiggling the key in the 'ON' position causes the dashboard lights to flicker, which points directly to a worn switch.
Technical Specifications
OEM Part Numbers: 1116672 1116674 1116685 1116687 1116700 1116710 12339182
The ignition switch for the 1966 Oldsmobile Jetstar 88 is a mechanical, multi-position electrical switch typically mounted on the dashboard or steering column. It is operated by the key and lock cylinder. The aftermarket replacement from Standard Ignition is designed to match the original's fit and function, using copper alloy conductors for conductivity.
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.