Ok here it goes...I have a 1999 Eddie Bauer 5.4 and have been experiencing heater issues for the last two winter seasons and can't really pinpoint the exact problem. I have replaced the thermostat, had the system flushed and checked the blend door (working correctly). The flush was done over a year ago and since then the antifreeze seems to still have rust residue in the reservoir. The strangest thing I CAN NOT figure out is the heater works better when the weather is warmer. Does this make any sense to anyone or give you an idea what would cause this? I have read other posts that lean towards water pumps. However the temp. reading on the dash remains normal. (No leaks) I have purchased NAPA radiator cleaner and am waiting to hear what others may think before I replace the water pump or just re-flush the system with the raditor cleaner and new coolant. When the truck was flushed the heat worked better when increased the RPM's. ANY input would greatly appreciated.
1999 Expedition Heater Help!
- Thread starter tazfire
- Start date
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DR3W
Full Access Members
Heater cores go out alot too.
I replaced mine including a flush and a new blend door last year after getting no heat for two seasons..
I replaced mine including a flush and a new blend door last year after getting no heat for two seasons..
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