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yea, check your vacuum lines, i believe its the red shaded clear line that runs on the passenger side of your truck, . by the heater blower motor, also top off your radiator, is the blower coming on>? email me at eliteprofessionals@live.com

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Q: How do you fix heat on a 1986 Chevy 4x4 raised about a foot Have already replaced water pump heater core hoses and thermostat but still blowing cold?
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