Took my 99 Expy to get my coolant leak fixed a while back prior to needing the heater. (Summer) The coolant leak was the hose that goes into the engine so it was an expensive fix.
Now that I need the heat, the only heat I can get is through the defrost vent no matter what mode I select for...
Guys, I have a 1999 5.4 L Expedition that was having some idling issues. I took off the TB (cleanded it), replaced the IAC, PCV and some old vacuum tubing elbows that were rotted. Put it all back together and it ran great, no more rough idling or dying while sitting at the red lights...
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