940 SE L4-2320cc 2.3L SOHC Turbo VIN 87 B230FT (1991)
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Cover opening with cloth.
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Protect interior trim.
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Direct spray onto evaporator.
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Move nozzle forward and backward while spraying to ensure that complete unit is treated. Use entire contents of bottle.
9. Final treatment of evaporator:
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Reinstall blower resistor.
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Reconnect battery ground lead.
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Dry evaporator:
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Set temperature control to max. heat and blower selector to max. speed.
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Start engine and allow to idle for two minutes.
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Stop engine. Allow cleaning agent to act for 30 minutes.
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Start engine. Open car windows. Select recirculation. Allow engine to run for 10 minutes to allow cleaning agent to dry and form a
protective film, and to prevent it from being washed off by condensate.
11. Reconnect pressostat lead.
12. Reinstall other components.