Operation CHARM: Car repair manuals for everyone.
Home >> Mercury >> 1993 >> Sable V6-182 3.0L >> Repair and Diagnosis >> Powertrain Management >> Ignition System >> Testing and Inspection >> Component Tests and General Diagnostics >> Test 2 - Secondary Display >> Test Step 6
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Test Step 6

Ignition Secondary Pattern:






^ Consistently low spark plug firing voltage or sloping spark line in one or more cylinders.

^ Possible causes:
- Fouled spark plug(s).
- Narrow spark plug gap(s).
- Spark plug wire(s) grounding on engine.
- Carbon tracking in cap and adapter.
pro multis · About Operation CHARM