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IMPORTANT 200 1991

posted by  1990Volvo240 on  Mon Dec 17 07:30 CST 2018
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last visit: Fri Oct 3 13:18 CST 2014
[RELATED]

Hi,

You mentioned that the "brass part" in one of your posts was corroded. That is the air filter box thermostat which controls the air filter box flapper which directs either cold or hot air toward your AMM.

If NH has strict guidelines you may need to keep the associated parts in place-air box thermostat, exhaust to air box hose. So you should probably purchase a new air box thermostat (I think it's only around $10) because that is very likely the culprit that fried your AMM (as I think a failed thermostat defaults hot air).

You may want to temporarily disconnect the exhaust to air box hose until you replace your air box thermostat as it could fry your new AMM in short order.

Travis






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