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.
1988 Alfa Romeo Spider GraduateFACTORY OEM SERVICE PROCEDURE
THERMO Time Switch
- When coolant temperature is between 86-104°F (30-40°C), thermo time switch will remain closed for a maximum of 8 seconds.
- Disconnect electrical connector from thermo time switch. Using an ohmmeter, measure resistance between terminal "W" of switch and ground. Ohmmeter should indicate zero ohms with coolant temperature less than 86°F (30°C). With coolant temperature more than 104°F (40°C), ohmmeter should read 100-160 ohms.
NOTE:
For all other models, refer to appropriate article in COMPUTERIZED ENGINE CONTROL section.
Factory Service Tools
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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.