Question about Cars & Trucks
First of all. check coolant level. One way to tell if the coolant is circulating through the heater core is to feel both heater hoses. Both the inlet and outlet return hoses should feel hot when the engine is at normal operating temperature and the heater is on. some vehicles have a "bleeder" valve (or more than one valve) on the thermostat housing and/or certain hose connections. Opening the valve(s) allows air to escape as the system is filled. The valve(s) should then be closed when coolant starts to dribble out the valve. On vehicles that lack these special bleeder valves, it may be necessary to temporarily loosen the heater outlet hose so air can bleed out as the system is filled. A plugged heater core. Accumulated crud in the cooling system may plug the core and block the flow of coolant. The only cure here is to replace the heater core. if above is ok. replace thermostat.
Posted on Feb 09, 2012
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Feb 19, 2012 | Dodge Dynasty Cars & Trucks
Oct 31, 2011 | 2000 Lincoln LS
Jan 12, 2010 | Land Rover Discovery Cars & Trucks
Dec 29, 2009 | 2000 Jeep Cherokee
Dec 21, 2009 | 2000 GMC Jimmy
Dec 05, 2009 | 2000 Ford F250 Super Duty Crew Cabs
Nov 20, 2009 | 1994 Chevrolet S-10 Blazer
Oct 14, 2009 | 2002 Ford F350 Super Duty DRW Reg. Cab
Mar 02, 2009 | 2004 Kia Sedona
Dec 23, 2008 | 2003 Chevrolet Silverado 2500HD
103 people viewed this question
Usually answered in minutes!