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  #1  
Old 02-20-2011, 11:17 AM
Learning to use the forums
 
Join Date: Feb 2011
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Default Running Cold

I have a 2000 Ford Ranger with a new t-stat and recently new coolant. I was having overheating problems hence the new t-stat. Now my truck runs in the normal on the surface streets but runs cool on the freeway. The heater blows warm air on the freeway but it is not the warmest of air. There shouldn't be any air in the system. Any suggestions before ripping into the truck to replace the heater core?
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  #2  
Old 02-20-2011, 12:14 PM
Ford Tough
 
Join Date: Jun 2009
Posts: 422
Default Re: Running Cold

Wrong temp on the thermostat or defective.
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  #3  
Old 02-20-2011, 09:11 PM
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Join Date: Mar 2010
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Default Re: Running Cold

Agreed with above, it should be cooking you out at the max setting.
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  #4  
Old 02-20-2011, 09:13 PM
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Join Date: Oct 2010
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Default Re: Running Cold

flush the heater core in both directions... very common problem..
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