Question about 2003 Ford Ranger Regular Cab
Buy a 5/8" hose splice, disconnect the hoses going to the heater core (wiggle and twist them off instead of just pulling) Be careful not to trash the $18 heater control valve that is connected to one of the hoses, the plastic may be a bit brittle.
Bypass the heater core by splicing together the two hoses. That ~1/4" hose that tees into the heater hose carries coolant from the engine in case you were curious.
Your heat and defrost won't work, but at least your not breathing ethyl glycol fumes.
Posted on Feb 05, 2009
You likely have a leak in your heater core... any odd fogging on the windows ?
Posted on Jan 23, 2009
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Posted on Jan 02, 2017
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