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Parts for your 2003 Ford Ranger-Spark plugs

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Permatex Dielectric Tune-Up Grease 9g - PX81150

Permatex Dielectric Tune-Up Grease 9g - PX81150

$24
Fitment Notes:
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Explore 4WD & Adventure

GV Tools 3 Piece Spark Plug Socket Set - GV012

GV Tools 3 Piece Spark Plug Socket Set - GV012

$14
Fitment Notes:
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Penrite Greenkeepers 2 Stroke Oil 2.5L - SEGNKTS0025

Penrite Greenkeepers 2 Stroke Oil 2.5L - SEGNKTS0025

$37
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Mechpro Spark Plug Wrench 16mm - MPBE101

Mechpro Spark Plug Wrench 16mm - MPBE101

$12
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Mechpro Spark Plug Wrench 2-In-1 16/21mm - MPBE102

Mechpro Spark Plug Wrench 2-In-1 16/21mm - MPBE102

$14
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Penrite Greenkeepers 2 Stroke Oil 1L - SEGNKTS001

Penrite Greenkeepers 2 Stroke Oil 1L - SEGNKTS001

$27
Fitment Notes:
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T&E Tools Ignition Spark Tester

T&E Tools Ignition Spark Tester

$39
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Toledo Spark Plug Gap Gauge - 302163

Toledo Spark Plug Gap Gauge - 302163

$5
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Repco Spark Plug Extension Bar 21mm - RT24846
Clearance

Repco Spark Plug Extension Bar 21mm - RT24846

$29
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Penrite Greenkeepers 2 Stroke Oil 20L - SEGNKTS020

Penrite Greenkeepers 2 Stroke Oil 20L - SEGNKTS020

$297
Fitment Notes:
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T&E Tools Spark Plug Boot Pliers

T&E Tools Spark Plug Boot Pliers

$30
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Repco Petrol Cylinder Compression Tester - RST160

Repco Petrol Cylinder Compression Tester - RST160

$130
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Nulon Engine Stop Smoke 500ml - SS
Clearance

Nulon Engine Stop Smoke 500ml - SS

$10
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Castrol OUTBOARD 2T 2 Stroke Oil 4L - 3377729

Castrol OUTBOARD 2T 2 Stroke Oil 4L - 3377729

$66
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T&E Tools Spark Plug Thread Repair Kit 14mm - 4100

T&E Tools Spark Plug Thread Repair Kit 14mm - 4100

$35
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Toledo Spark Plug Starter - 302157
Clearance

Toledo Spark Plug Starter - 302157

$6
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Toledo Spark Plug Thread Chaser - 302168

Toledo Spark Plug Thread Chaser - 302168

$29
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Toledo HD Spark Plug Firing Tester - 302167

Toledo HD Spark Plug Firing Tester - 302167

$36
Fitment Notes:
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Toledo Spark Plug Thread Kit - 302300

Toledo Spark Plug Thread Kit - 302300

$42
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Powerbuilt Spark Plug Socket - 643001

Powerbuilt Spark Plug Socket - 643001

$9
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Powerbuilt Spark Plug Socket - 643004

Powerbuilt Spark Plug Socket - 643004

$8
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Toledo Spark Plug Thread Kit 14mm - 302176

Toledo Spark Plug Thread Kit 14mm - 302176

$42
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Powerbuilt Spark Plug Socket - 643005

Powerbuilt Spark Plug Socket - 643005

$11
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Toledo Spark Plug Tool 21mm Hex - 302223

Toledo Spark Plug Tool 21mm Hex - 302223

$56
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Repco Heavy Duty Spark Plug Boot Pliers - RST63

Repco Heavy Duty Spark Plug Boot Pliers - RST63

$46
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Toledo Spark Plug Tester - Box Type - 302165

Toledo Spark Plug Tester - Box Type - 302165

$22
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Castrol OUTBOARD 2T 2 Stroke Oil 1L - 3377726

Castrol OUTBOARD 2T 2 Stroke Oil 1L - 3377726

$45
Fitment Notes:
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T&E Tools Electronic Ignition Spark Tester

T&E Tools Electronic Ignition Spark Tester

$56
Fitment Notes:
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Toledo In-Line Ignition Spark Tester - 302026

Toledo In-Line Ignition Spark Tester - 302026

$32
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Showing 1 - 39 of 45 products

Spark Plugs Maintenance for Your 2003 Ford Ranger

Tending to the spark plugs in your 2003 Ford Ranger is a simple but pivotal part of maintaining your vehicle's performance and efficiency. Spark plugs are small but mighty components responsible for igniting the air-fuel mixture in the engine cylinders. Over time, these little champs can wear out or get dirty, so knowing when and how to replace them is key to keeping your Ranger in top shape.

Before diving into replacements, it's essential to know which spark plugs are appropriate for your Ford Ranger. The 2003 Ford Ranger typically uses a specific size and type of spark plug, often copper or platinum-tipped depending on your particular model and engine specification. Check your vehicle owner's manual for exact specifications, or consult a professional to make sure you're getting the right fit.

Once you've secured the correct plugs, here are a few signs that indicate it might be time for a replacement:

  • Sluggish acceleration or reduced power.
  • Trouble starting your vehicle.
  • Engine misfires or rough idling.
  • Poor fuel economy.

If you're noticing any of these symptoms, it might be time to give those spark plugs a check or a swap. Spark plugs generally last between 20,000 to 30,000 kilometres for copper plugs, while platinum or iridium plugs can last upwards of 100,000 kilometres. However, it's best to check them more frequently and replace them as needed to avoid any unexpected vehicle issues.

Replacing spark plugs isn't a complex task and can be done with a bit of patience and the right tools. Make sure your engine has cooled down to avoid burns. You'll generally need a spark plug socket, ratchet, extension bar and a gapping tool if the plugs are not pre-gapped. Follow these basic steps:

  1. Locate the spark plugs and remove any obstructions.
  2. Carefully detach the spark plug wire or coil pack.
  3. Use the spark plug socket and ratchet to remove the old plug.
  4. Inspect the old plugs for excessive wear or damage.
  5. Install the new spark plug by threading it by hand to avoid cross-threading.
  6. Tighten it with the socket and ratchet until snug.
  7. Reconnect the spark plug wire or coil pack securely.

It's a good idea to replace all the spark plugs at the same time to ensure consistent performance. Regular check-ups and maintenance can prevent a lot of tricky situations down the road. If you're not comfortable doing it yourself, don't hesitate to bring your Ranger to a trusted mechanic for some expert attention. They can do all the necessary checks and replacement while you kick back and relax, knowing your vehicle is in capable hands.