Silverline Car Ignition Spark and Vehicle Coil Pack Tester 633982

Silverline Car Vehicle Ignition Spark and Coil Pack Ignition Tester

Barcode: 5024763032028

MPN: 633982

Overview:

The Vehicle Ignition Spark and Coil Pack Tester 633982 is a simple, fast diagnostic tool that provides a clear visual check to confirm whether a car engine is producing spark. Designed to connect inline between the spark plug and ignition lead, it provides a clear visual indication of ignition output—helping you quickly confirm if a no-start or rough-running problem is spark-related. It’s also suitable for testing individual coil packs and HT leads, making it a useful addition to any workshop or toolkit. When cranking the engine, the tester flashes to show spark is being sent to the cylinder, saving time and frustration when fault-finding across a wide range of petrol engines.

Key Features

• Inline ignition tester for quick spark diagnosis

• Connects between spark plug and ignition lead for clear visual indication

• Flashes when spark/ignition pulse is present

• Suitable for testing coil packs and HT leads

• Helps diagnose no-start and misfire/rough running issues

• Ideal for cars, vans, motorcycles, boats, chainsaws, lawn mowers and more

• Quick to fit and easy to use

Specifications

• Brand: Silverline

• MPN: 633982

• Barcode: 5024763032028

• Product Type: Ignition spark tester / coil pack tester

• Length / Size: 270mm

• Resolution: On/Off (spark indication)

• Clamping / Connection: Push connector onto spark plug

• Finish: Chrome plated, plastic

• Construction Materials: Steel (secondary), steel tip

Applications

• Checking spark output on petrol engines

• Diagnosing non-starting engines (spark present/not present)

• Identifying ignition-related misfires and poor running

• Testing HT leads and individual coil packs (where applicable)

• Suitable for many spark-ignition engines: automotive, marine and garden machinery

How to Use

• Switch off ignition and ensure the engine is safe to work on

• Remove the rubber boot from the spark plug

• Insert the tester between the spark plug and the ignition lead/boot

• Place the tester’s boot securely onto the spark plug

• Crank the engine and observe the tester window/light

• Flashing/glowing indicates spark is present; no flash suggests an ignition issue (further diagnosis required)

Silverline Ignition Spark Tester 633982 – Key FAQs

• What does this tester tell me?
  It shows whether spark/ignition pulse is being delivered to the plug. If it flashes while cranking, the ignition system is producing spark to that cylinder.

• Can it be used on coil packs and HT leads?
  Yes. It can be used inline to help test individual coil packs and HT leads, depending on your ignition layout and access.

• What engines is it suitable for?
  It’s suitable for most spark-ignition (petrol) engines, including cars, vans, motorcycles, boats, chainsaws and lawn mowers.

• Why is my engine still not starting if it flashes?
  If spark is present, the issue could be fuel delivery, compression, timing or another fault. The tester confirms spark only, so further checks may be needed.

• Is it difficult to use?
  No. It’s a push-fit inline tool—connect it between the plug and lead, then crank the engine and watch for flashing.

• Is it safe to use?
  Use standard ignition safety precautions: keep hands clear of moving parts, avoid touching exposed ignition components, and work in a well-ventilated area.