Response to Not getting any heat.

There are two different coolant temperature thermostats. Make sure you have the one with the higher opening (=operating) temperature. Also, check the heat exchanger which heats the vent air. But: I had a '92 900S with the same problem which finally disappeared after all coolant hoses had been exchanged (!!). Independent of the heating problem, coolant hoses should be exchanged after so many years of operation as a preventive measure. Old hoses tend to leak, results often catastrophic for the engine. I am German, therefore my English ... All the best to you. Even with leaking coolant hoses the sex appeal of a '92 900S is still unsurpassed. KS

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