1989 Plymouth Horizon Service and Repair Manual

This factory service and repair manual for the 1989 Plymouth Horizon covers a hatchback with four doors, offered in the America trim and powered by a 2.2L inline-four. That engine displaces 135 cubic inches, breathes without a turbocharger and runs a single overhead camshaft on gasoline. You get specifications and torque values for the engine and its cooling and fuel systems, wiring diagrams for the ignition and electrical system, and procedures carrying on through the transmission, hydraulic brakes, steering and suspension.

Engines covered

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

Body styles covered

• 4-door hatchback

Trims covered

• America

Known issues on the 1989 Horizon. NHTSA recalled certain 1989 Horizon vehicles over the valve cover gasket, which could shift out of place and let engine oil escape; loose oil in the engine compartment could start a fire. The fix was a revised cover sealed with RTV in place of a gasket. That is the 1 recall on record for this year. Owners filed 3 complaints, 2 of them on the power train and 1 apiece on the hydraulic service brakes and the steering. The manual pairs engine, powertrain, brake and steering procedures with specifications, torque values and diagnostics.