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Discussion Starter #1
Ok I've read a bunch of posts on the heater issue and here is my '05 Off Road's issue. THis all started this winter also.
Remote start truck=engine warm, heater blowing cold air
Drive truck and hot air blows out
Stop at light and cold air starts to blow out.

Never had the coolant drained or anything like that.
The hoses on either side of the heat valve near the fire wall are warm. So I'm guess ing the valve is working. Anyone have this issue and have a fix for it?

The guy that does work on my truck wants to do a full flush and new thermostat.
 

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The guy that does work on my truck wants to do a full flush and new thermostat.
It is probably low on coolant.
And I think your guy is on the right track.
 

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A flush will be fine as long as they don't leave an air pocket in your system or you'll end up with the same problem. Even with that new thermostat.
 
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