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Home >> Opel >> 1971 >> Opel 1.1L Eng, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Ignition System >> OPEL Engine Modification 1970-72 >> Testing >> Testing Thermostatically Controlled Air Cleaner >> Thermometer Check of Sensor
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Thermometer Check of Sensor

NOTE: Test must be made with engine cold and air cleaner temperature below 85°F.

Remove air cleaner cover and install a suitable temperature gauge as close as possible to sensor. Reinstall air cleaner cover (do not install wing nut). Start engine and allow it to idle. Cold air door should close immediately. When cold air door does start to open, remove air cleaner cover and read temperature gauge. It must read 115°F ± 20°F.

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