Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSFORD1985RANGER 2.8 S, RWD, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE MECHANICALENGINE COOLING FANCOOLING SYSTEM TESTINGTHERMOSTAT
1985 Ford Ranger 2.8 S, RWD, Automatic
Cooling System Testing: Thermostat
1985 Ford Ranger 2.8 S, RWD, AutomaticSECTION Thermostat
- Visually inspect thermostat for corrosion and proper sealing. If satisfactory, suspend thermostat and thermometer in container of water. Do not allow either thermostat or thermometer to touch bottom of container as concentration of heat could cause an incorrect reading.
- Heat water until thermostat just begins to open. Note temperature at which thermostat begins to open. Compare to specification in table. See COOLING SYSTEM SPECIFICATIONS article in this section. Replace thermostat if it does not open.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.