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Old 09-28-2010, 07:50 PM   #1
tbirdman88
87 short crewcab
 
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Join Date: Jan 2004
Location: duncan okla
Posts: 82
heater problem

have a 83 just put a 1989 suburban motor and trans, left all the factory f.i. intact. problem is that the heater does not work. Both heater hoses are hot, but blows cold air. the divertor door is working also. but cant change from floor to defrost either. HELP ????
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Old 09-28-2010, 08:46 PM   #2
motornut
78K & 79C Jimmys
 
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Join Date: Nov 2009
Location: Ottawa Ont CANADA
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Re: heater problem

check these things
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1978 GMCJimmy4X4-350/203
1979 GMCJimmy4X2-305/350
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