Engine Oil Pressure Switch Guide for the 1956 Studebaker E17
Keep your classic Studebaker's engine safe by understanding this small but critical sensor.
- A faulty oil pressure switch can give false warnings or, more dangerously, fail to warn of low oil pressure.
- Symptoms include a constant or flickering oil light, or a light that never comes on.
- New aftermarket switches from Standard Ignition are the only practical and reliable replacement option.
- This is a simple, low-cost, and easy DIY replacement that most owners can perform in under 30 minutes.
Is Your Oil Pressure Light Lying to You?
On a classic Studebaker truck, the oil pressure warning light is your main window into the engine's health. But what happens when the sensor sending the signal goes bad? A faulty engine oil pressure switch can give you a false sense of security or a needless scare. It might fail to warn you of dangerously low oil pressure, or it might keep the warning light on even when pressure is perfectly fine. Since this part is simple, inexpensive, and easy to replace, it's often the first thing to check when you have oil pressure warning issues.
Symptoms of a Failing Oil Pressure Switch
A bad oil pressure switch can cause confusing symptoms. Here's what to look for:
🎬 Watch this video to see common signs of sensor failure.- Oil Light Stays On: The most common symptom is an oil pressure warning light that is always on, even after you've checked the oil level and are confident the engine has good pressure.
- Flickering Oil Light: A light that flickers or comes on intermittently, especially at idle or during turns, can point to a failing switch sending erratic signals.
- Oil Light Never Comes On: If the oil light doesn't illuminate briefly when you first turn the key before starting the engine, the switch may have failed in the open position. This is dangerous as it won't warn you of a real low-pressure problem.
- Oil Leaks: The switch itself can develop leaks over time. If you see oil seeping from the sensor body or its electrical connection, it needs to be replaced.
Choosing Your Aftermarket Part
For a vintage vehicle like the 1956 Studebaker E17, finding new original equipment (OEM) parts is not a realistic option. The aftermarket is the primary source for these components.
Standard Ignition (Standard Motor Products):
The only widely available brand for this application is Standard Ignition. Standard has been a trusted name in automotive electronics for decades and is a reliable choice for classic vehicles. Their switches, such as the common PS60, are designed to meet or exceed original specifications. They use durable materials like polyimide diaphragms to resist leaks and handle pressure changes, ensuring reliability. For a part like this, a new aftermarket switch from a reputable brand is a much safer bet than a used or New Old Stock (NOS) part, which may have aged seals.
Part Costs & Labor
| Part Type | Price Range |
|---|---|
| New Aftermarket (Standard Ignition) | 🎬 Learn more about symptoms and typical replacement costs.$12 - $15 |
| New OEM | Not Available |
| Shop Labor | $50 - $100 |
Frequently Asked Questions
Where is the oil pressure switch located on a 1956 Studebaker E17?
On most classic V8 and inline-six engines of this era, the oil pressure switch is threaded directly into the engine block. It is typically located near the oil filter or the distributor. Look for a small, single-wire sensor screwed into the side of the block.
Is this a difficult part to replace myself?
No, this is a very DIY-friendly job. Access is generally good on these older trucks. The process involves disconnecting the wire, using a wrench or a special oil pressure switch socket to unscrew the old switch, applying sealant to the new one, and installing it. The entire job usually takes less than 30 minutes.
🎬 See how to replace the switch using basic hand tools.What happens if I ignore a bad oil pressure switch?
Ignoring a faulty switch is risky. If it's stuck 'off', you won't get a warning during a real low-pressure event, which can lead to catastrophic engine failure. If it's stuck 'on', it's a constant annoyance that could cause you to ignore a real problem in the future.
Should I use thread sealant on the new switch?
Yes. The switch has tapered pipe threads. To prevent oil leaks, apply a small amount of automotive-grade thread sealant or Teflon tape to the threads before installation. Be careful not to get any sealant inside the opening of the switch.
Helpful Videos
Technical Specifications
The common replacement, Standard Ignition PS60, typically uses a 1/4 in. NPT thread size and has a single pin connector.
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.