Volvo 244 Engine Oil Pressure Switch Guide (1985-1989)
That flickering oil light might be a simple fix, but it's one you can't ignore.
- Always check your oil level first and verify actual oil pressure with a mechanical gauge before assuming the switch is bad.
- For 1985-1989 models with the B230 engine, you must get a switch with M14x1.5 threads.
- A flickering oil light is a classic symptom of a failing switch, but also check for frayed wiring near the sensor.
- This is a simple, inexpensive, and DIY-friendly repair that can be done in under 30 minutes.
Is Your Oil Light Lying?
The most common reason to replace the oil pressure switch on a Volvo 244 is a flickering or constantly illuminated oil pressure light. While this light can signal a serious engine problem, it's often just a faulty switch or its wiring. Before you panic, the first and most important step is to pull over safely and check your engine's oil level using the dipstick. If the oil level is correct, the next step should be to verify the engine's actual oil pressure using a mechanical gauge. 🎬 Watch: How to diagnose a flickering oil pressure light. This is a critical diagnostic step to rule out a worn oil pump or other internal engine issues before replacing the switch.
Warning: Do Not Ignore the Oil Light
Never assume the oil light is just a faulty switch. Driving with low oil pressure can cause catastrophic engine failure in a very short time. Always verify the oil level and pressure before continuing to drive.
Choosing the Right Aftermarket Switch
For a straightforward part like an oil pressure switch on a classic Volvo, aftermarket options provide excellent value. You don't necessarily need to hunt down an expensive Genuine Volvo part. However, quality can vary between brands.
- Reliable Aftermarket (Standard Ignition, Facet): Brands like Standard Ignition and Facet are well-regarded in the industry. They produce reliable components that meet or exceed original specifications. For a part that signals your engine's lifeblood, spending a few extra dollars for a trusted brand provides peace of mind.
- Budget-Friendly (URO Parts, Global Parts): Budget brands offer the lowest price point. While many owners use these parts without issue, online forum discussions show that their quality can be inconsistent, with some parts failing prematurely. Given the simple installation, some owners don't mind the risk, but if you want to do the job once and forget about it, stepping up to a more established brand is recommended.
Pro-Tip: Check the Wiring
The wiring leading to the oil pressure switch on the 240 is known to become brittle and frayed over time, especially where it runs near the engine block. A wire with damaged insulation can ground out, causing the oil light to turn on even if the switch and oil pressure are fine. While you're replacing the switch, inspect the wire and its connector. If it looks cracked or damaged, it may need to be repaired or replaced.
Common Ordering Mistake
The most critical detail when ordering is the thread size. For the B230 engine used in 1985-1989 Volvo 244s, the correct thread size is M14x1.5. Older Volvo engines used a different size, so be sure to order the part specified for your year range to ensure it fits.
| Part Type | Cost Range |
|---|---|
| New Aftermarket Switch | $5.96 - $23.55 |
| New OEM (Genuine Volvo) Switch | $30 - $50 |
| Shop Labor for Installation | $50 - $100 |
Frequently Asked Questions
Where is the oil pressure switch located on my 1985-1989 Volvo 244?
You can find the oil pressure switch screwed into the side of the engine block, near the oil filter. It will have a single wire connected to it.
Can I replace the oil pressure switch myself?
Yes, this is a very simple DIY job for a home mechanic. It requires basic hand tools, primarily a deep socket to fit the switch. The entire process usually takes less than 30 minutes.
My oil light doesn't flicker, it just never comes on. Could it be the switch?
Yes. If the oil light doesn't illuminate for a few seconds when you first turn the key to the 'on' position (before starting the engine), it indicates a problem in the circuit. This could be a burned-out dashboard bulb, a bad connection, or a failed-open oil pressure switch.
What tools do I need for the replacement?
You will need a socket wrench with a deep socket (the size can vary by brand, but 22mm, 24mm, or 27mm are common), a drain pan to catch a small amount of oil, and possibly some shop towels for cleanup. Some owners apply a small amount of Teflon tape to the threads of the new switch if it doesn't come with pre-applied sealant.
Is there a recall or TSB for this part?
No, there are no known recalls or Technical Service Bulletins (TSBs) from Volvo or the NHTSA for the engine oil pressure switch on the 1985-1989 Volvo 244.
Helpful Videos
Technical Specifications
OEM Part Numbers: 1347003
Thread Size: M14 x 1.5
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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.
- Volvo 244: