The firing order for Jeep's 4.2L inline-6 engine is 1-5-3-6-2-4, used in models like the Cherokee from the 1980s. Always verify this against a diagram to prevent misfiring during tune-ups or repairs.
Fast Free Resources for the Diagram
Locate a reliable firing order diagram quickly with these no-cost approaches:
- Vehicle Owner's Manual: The most accurate source; check the engine section in your physical or digital copy.
- Automotive Repair Forums: Search trusted communities like Jeep enthusiast forums where users upload diagrams in discussions.
- Digital Library Services: Access free PDF service manuals through public or university libraries online catalogs.
- Manufacturer Archives: Jeep’s official sites host technical documents; look under support or owner resources sections.
- Educational Automotive Sites: Reputable websites offer free diagrams; use a search engine with precise keywords.
Ensure safety by cross-referencing multiple sources before engine work.
