This factory service and repair manual for the 1985 Chevrolet Spectrum covers a small car with one engine, a naturally aspirated 1.5L SOHC inline-four of 92 cubic inches, in two bodies, a four-door sedan and a two-door hatchback, both in Base specification. Everything mechanical is shared between the two, so the engine, transmission, brake and suspension procedures read the same either way; the differences are in panels, glass and closures, which the body sections handle separately.
Engines covered
- 1.5L inline-four (92 cu in) — SOHC, naturally aspirated, gasoline
Body styles covered
- 4-door sedan
- 2-door hatchback
Trims covered
- Base
Known issues on the 1985 Spectrum. One recall is on the federal record. The fuel pump diaphragm can degrade where alcohol content in the gasoline attacks its coating, cracking radially until it perforates; fuel then leaks out of the pump into the engine compartment, where it can start a fire under the hood with no warning beforehand. A single owner complaint has been recorded, and it concerns visibility. Fuel system service and its specifications, along with the procedures and wiring diagrams for the lighting and wiper circuits, are included here.
VEHICLES MAY EXPERIENCE PERFORATION OF THE FUEL PUMP DIAPHRAGM. EXCESSIVE ALCOHOL CONTENT IN THE FUEL PROMOTES DEGRADATION OF THE DIAPHRAGM COATING RESULTING IN RADIAL CRACKING OF
A PERFORATED DIAPHRAGM CAN ALLOW FUEL TO LEAK FROM THEFUEL PUMP INTO THE UNDERHOOD AREA.
A FUEL VENTILATION HOSE KIT WILL BE INSTALLED TO PREVENT FUEL FROM ESCAPING INTO THE ENGIN
HEATER CORE LEAKED ANTIFREEZE INTO CABIN. *SD
