Volvo AWD 850 Forum

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no heat 850 1994

posted by  someone claiming to be Ken DeSiata on  Sun Nov 11 04:02 CST 2001 [RELATED]

no heat in my 850T,replaced thermostat last season,normorl temp.fans work.but just blow cold air. where do I go from here? Ken







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T-stat? 850 1994

posted by  someone claiming to be Glen on  Sun Nov 11 23:23 CST 2001 [RELATED]

Sounds like your thermostat is stuck opened, thus the engine never reaches full operating temp. Replace your engines t-stat.







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Re: no heat 850 1994

posted by  someone claiming to be Chris on  Sun Nov 11 16:16 CST 2001 [RELATED]

Chances are if your car is a 94 you have what is called an mcc unit. which stands for manual climate control. -does not have AUT functions.- if this is correct, the functions are cable driven. check cables. good luck.







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Re: no heat 850 1994

posted by  someone claiming to be Ken DeSiata on  Mon Nov 12 14:52 CST 2001 [RELATED]

Yes car is '94, but system is electronic climate control,only one fault code logged in system , 417 (passenger's side interior temperature inlet fan seized ) but would this cause no heat at all? It's getting cold!







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Re: no heat 850 1994

posted by  someone claiming to be frank on  Sun Nov 11 04:27 CST 2001 [RELATED]

maybee you have air in your cooling system. check the heater when you engine is hot. You have air in it or your heater has not coolingwater streaming. your heater is blockt







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Re: no heat 850 1994

posted by  someone claiming to be Ken DeSiata on  Sun Nov 11 05:27 CST 2001 [RELATED]

not shure how to check for air in system,level of coolant has never been low.heat has been working fine until yesterday,lost heat at end of 15 mile trip.ac ligt and rec. light not blinking. only DTC code to show was 417(pasenger side sensor intake fan blocked).






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