I put in a new thermostat, but the heater still only blows cold air.
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1993 Ford Ranger Question: No heat
Answer #1Auburn Foreign & Domestic (194 Answers) , Auburn, WA - (253) 259-3676Greg-Julia December 13, 2010, 15:46Journeyman
HEATER CORE MAY BE PLUGGED. GREG
Replyscottjohns, December 16, 2010, 10:21Rookie
How would I go about unplugging it.
Is there any valve connected to the core?
Answer #2joelburke26 from Joels Auto Service, December 13, 2010, 16:12Master
grab the heater hoses at the firewall and if one feels cooler then the other just flush it out with a garden hose,reconnect the hoses then check for heat.i would buy a $4 prestone hydrometer to check for boil over and frezze over protection also.