1984 Plymouth Horizon Service and Repair Manual

This factory service and repair manual for the 1984 Plymouth Horizon applies to a four-door hatchback built in Base and SE trims, with a 1.6L or 2.2L gasoline inline-four under the hood. The 1.6L displaces 97 cubic inches and the 2.2L 135; each has a single overhead camshaft and breathes without a turbocharger. The manual supplies procedures, specifications and torque values for the engine and its fuel, ignition and cooling systems, and for the transmission, brakes, steering and suspension, with wiring diagrams and diagnostics for the electrical system.

Engines covered

• 1.6L inline-four (97 cu in) — SOHC, naturally aspirated, gasoline
• 2.2L inline-four (135 cu in) — SOHC, naturally aspirated, gasoline

Body styles covered

• 4-door hatchback

Trims covered

• Base
• SE

Known issues on the 1984 Horizon. There is 1 recall for the 1984 Horizon. On certain 1984 Horizon vehicles fitted with the affected engine equipment, fuel could seep in the engine bay from the seam of the silver fuel reservoir can mounted on the air cleaner, or from its hose connections; dealers replaced the hoses and metal tube and resealed or replaced the reservoir. Owners filed 2 complaints, 1 under the gasoline fuel system and 1 under vehicle speed control, and 1 complaint reported a fire. Fuel system procedures, specifications, torque values and diagnostics apply here.